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Air Products confirmed on October 29 that it is in final negotiations to form a joint venture with Saudi Aramco, ACWA Power and Air Products Qudra to acquire the gasification, power and industrial gas assets at Jazan Economic City, representing a total investment value of about $11.5 billion. Air Products' confirmation follows an announcement made today by Saudi Aramco at the Future Investment Initiative in Riyadh, Saudi Arabia and builds on Air Products' initial announcement about this world-class project. Air Products looks forward to concluding negotiations and expects to close on the transaction by the end of calendar 2019. Air Products will provide additional comments on its upcoming fiscal fourth quarter earnings call on November 7, 2019 and further details about the project following financial close.
Revision Date: 11/6/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, Air Products, Saudi Aramco, ACWA Power, Joint Venture, Assets, Gasification, Negotiations, Saudi Arabia
Real time corrosion monitoring for HRSG
Flow accelerated corrosion (FAC) can cause iron loss in steam piping and lead to lethal accidents. As a result, programs are necessary to reduce metal loss and to monitor the loss which does occur. A team from Danaher analyzed the problem in a Power Engineering article earlier this year.
Revision Date: 10/24/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Danaher-Hach, Analyzer, Ammonia
Duechting ceramic pumps demonstrate low cost of ownership in U.S. cement plant
Due to its significant corrosive and abrasive characteristics, gypsum slurry is a very difficult medium to handle. An American cement plant with a yearly capacity of about 2 million metric tons has found a good solution for that issue.
Revision Date: 10/23/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, 327310 - Cement Manufacturing 水泥生产, Duechting Pumps, Pumps, Pumps and Systems, USA
Emerson Actuator replacement solves turbine bypass problem
As often as four times a year during winter months, a power plant in Wisconsin would miss a scheduled start of its combined cycle power plant due to malfunctions of the turbine bypass valves. This article describes how the problems were solved by replacing the actuation components on those valves.
Revision Date: 10/17/2019
Tags: 221118 - Other Electric Power , 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, Emerson Electric, Valve, USA
Upgrade FGD systems with an absorber tray says B&W
Retrofitting an absorber tray into an open spray tower is an effective way to maximize the contact between the flue gas and the slurry. The tray maximizes the contact between the gas and the slurry due to the vigorous frothing action that occurs on the tray. The absorber tray also evenly distributes the flue gas flow across the absorber cross-section, promoting optimum contact as the flue gas passes through the absorber spray levels.
Revision Date: 8/29/2019
Tags: 221118 - Other Electric Power , Babcock & Wilcox, Tray Scrubber, Upgrade
Sheldon Station has shown the low total cost of ownership of P84 bags
The Sheldon Station consists of two Babcock & Wilcox cyclone boilers burning Powder River Basin coal. Baghouses for each unit were constructed in 1999 and 2000, respectively, replacing ESPs. The bags are built to operate at 310F with a 3.5:1 cfm/ft 2 gas-to-cloth ratio. The dust loading is 0.97 grains per actual cubic foot (gr/acf) at the inlet and 0.005 gr/acf at the outlet.
Revision Date: 8/22/2019
Tags: 221118 - Other Electric Power , Evonik Industries, Bags, Power
FLS semi dry scrubber meets expectations at Norwegian cement plant
To comply with the Gothenburg Protocol, a FLSmidth gas suspension absorber, FLS-GSA® semi-dry scrubber was installed as an alternative to a more expensive wet scrubber at Norcem AS, Brevik cement plant in Norway. The F.L. Smidth semi-dry scrubber system installed at the Brevik plant has exceeded its designed performance, achieving 97.3% reduction of SO2 emissions and 95.2% reduction of HCl emissions. It has proven that it can achieve reductions in SO2 and HCl emissions that are similar to what can be achieved in a more expensive wet scrubber system. Emissions testing has shown that semi-dry scrubber system also gives the plant the capability to reduce mercury (Hg) emissions by 90%. To achieve this Mercury reduction on a long-term basis, the plant would only need to start shuttling dust from the semi-dry scrubber system to the finish mill.
Revision Date: 8/22/2019
Tags: 327310 - Cement Manufacturing 水泥生产, FLSmidth, Norcem, Scrubber, Norway
36,000 hours of operation for P84+PPS bags at Eskom
Eskom owns and operates more than 40 GW of installed capacity and is the largest utility in Africa. The Arnot Power Station consists of six nominally rated 350-MW coal-fired units originally installed between 1968 and 1975.
Revision Date: 8/21/2019
Tags: 221118 - Other Electric Power , Eskom, Evonik Industries, Bag, Power, South Africa
BHGE and DARVICO together supply Control Valve Package to World’s Largest IGCC Power Plant
BHGE announces the delivery of the highly engineered, severe service control valve packages to Saudi Aramco’s Jazan Integrated Gas Combined Cycle Power Plant.
Revision Date: 8/15/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, BHGE (Baker Hughes GE), DARVICO, DARVICO, Valves, Saudi Arabia
Valmet uses the condensing scrubber technology to recover heat
Valmet wll be an exhibitor at Sox-Nox India. It has a unique approach to recover heat. There is a lot of energy in flue gas due to the water (30–60%) contained in the fuel and steamed in the boiler. This energy escapes into the environment when the water is not condensed back into a liquid. With Valmet’s advanced flue gas condensing technology, a plant can recover this energy and use it, for example, • to increase district heat capacity • save fuel • increase the overall balance while heating up the turbine condensate. Valmet offers two technologies for heat recovery • the tube condenser • the condensing scrubber • and a combination of these two (a pre-scrubber and a tube condenser).
Revision Date: 8/15/2019
Tags: 221112 - Fossil Fuel 化石燃料, Valmet Corporation, Heat Exchanger, Scrubber
BHGE expands ASME Section I portfolio to include liquid Economizer and Thermal Fluid Heater Valves
BHGE announces the expansion of the Consolidated ASME Section I portfolio, to now include 1900 LA1 spring-loaded and 2900 LA1 pilot-operated B&PV code approved liquid safety relief valves as solutions for liquid over-pressure protection for Economizers and thermal fluid heaters.
Revision Date: 8/15/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, BHGE (Baker Hughes GE), Valves, Gas Turbine
Larsen & Toubro has complete range of valves for ultra-supercritical coal plant
The Indian market accounts for nearly 50% of L&T Valves revenue, and the balance comes from international markets, with the Middle East being the most prominent territory. “We are a one-stop-shop for almost all types of process valves – gate, globe, check, ball, butterfly, and plug valves. We offer these valves in many combinations of size, pressure class, materials, and so on, and we are equipped to provide our clients with almost all their process valves requirements” says N.V. Venkatasubramanian (Venkat), Chief Executive and Director. “Further, L&T Valves also offers a complete range of valves for the power industry. In fact, we are one of the few companies that can offer all valves and accessories required for an ultra-supercritical thermal power station.” “Custom-engineered solutions for defence and aerospace applications form an important part of our portfolio. The experience that we gain from working in these sectors has helped us to improve our product quality, strengthen our processes and expand our knowledge base.”
Revision Date: 8/12/2019
Tags: Larsen & Toubro, Valve, Valve World India, India
Valve stem seal selection criteria
For ultra-supercritcal service graphite packing without PTFE and binders is proven to be a low total cost of ownership option. Seals can also be protected by an oxygen inhibitor and be live loaded for protection against thermal cycling Valve stem seal selection criteria, Flow Control, Mar 2017
Revision Date: 8/12/2019
Tags: Larsen & Toubro, Seals, Valve, Flow Control
10 top Indian Power plants are highlighted in Power Magazine
The plants were highlighted in June in Power Magazine. Here are the details on the largest’. The Vindhyachal Thermal Power Station in the Singrauli district of Madhya Pradesh, with an installed capacity of 4,760MW, is currently the biggest thermal power plant in India. It is a coal-based power plant owned and operated by NTPC. Construction of the plant, which comprised 12 generating units (six 210MW units and six 500MW units), had begun in 1982. The first unit was commissioned in 1987 while the sixth 500MW was commissioned in April 2013. An additional 500MW unit was commissioned in August 2015, increasing the plant’s gross capacity from 4,260MW to 4,760MW. The plant uses coal from the NCL-operated Nigahi mine and water from the discharge canal of Singrauli Super Thermal Power Station. The turbine manufacturers for the Vindhyachal Thermal Power Station include Russian companies LMZ, Electrosila and the Indian BHEL. The 500MW units were supplied by BHEL.
Revision Date: 8/8/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , Power Magazine, India
Power Plant high pressure isolation valve choices
Considering isolation valves on the higher pressure systems (HP) essentially there are two choices. The first one, the wedge gate valve, has risen in popularity due to the drive to reduce costs. It offers a ‘one time’ sealing solution due to the wedging action between the plug and the seat. However, these valves should be avoided on steam plants where temperature changes potentially result in thermal binding of the wedge and locking of the valve in the closed position. The best solution for power plants is the parallel slide valve, invented by Hopkinson in 1881. Compared to the wedge gate valve; all the components in a parallel slide valve are free to move no matter what the temperature. This means that, as the valve heats and cools, seat integrity is maintained without any thermal locking. The valve has a rising stem but, unlike the wedge gate valve, it is positioned seated, meaning there is no additional force required to seat or un-seat the valve.
Revision Date: 8/8/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Weir Group, Valve
Four Corners installs SCR on two boilers along with DSI
There is a good article on this retrofit in Power Magazine, 8-1-19. The SCR retrofit installation began in August 2015. The new technology on Unit 5 was completed in May 2018 and finished in July 2018 for Unit 4. The major participants, along with APS and AECOM, included Sundt Construction, a regional construction company, and Riley Power, part of Babcock Power Inc. Riley is known for manufacturing equipment for all types of fossil and waste fuel-fired boilers, including SCR systems. ■ Installation of four Riley Power SCR reactors (two per unit). ■ Installation of four Howden tri-sector rotary air preheaters (two per unit). ■ Installation of two dry sorbent injection systems, comprised of pneumatic truck unloading systems, storage silos, sorbent feed/transport blower systems and nozzles to inject hydrated lime upstream of the SCR reactors. You can view the whole article through the link below. You also see the advertisement for Trillium Pumps and Valves. In case you did not recognize the name it is the Weir Flow Control Group as a separate company.
Revision Date: 8/8/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , Weir Group, Babcock Power, Arizona Public Service, Howden
Boiler Circulating Pumps used in coal, combined cycle and nuclear plants
Boiler circulating pumps circulate water within the boiler to enhance boiler operation. They take suction from a header that is connected to several downcomers from the bottom of the boiler drum and discharge through additional tube circuits.
Revision Date: 7/25/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221113 - Nuclear Electric Power Generation * , Canned Motor Pump
Case for dry scrubbers for Indian Power plant
Bob Giglio of SHI FW makes a case for CFB dry scrubbers for the 60,000 MW of coal fired power plants in India which are less than 500 MW and are older. SHI-FW has provided CFB dry scrubbers with a capacity of 300 MW both to China and the US. Advantages include the low water requirements.
Revision Date: 7/24/2019
Tags: 221112 - Fossil Fuel 化石燃料, Sumitomo SHI FW, Sumitomo SHI FW, Scrubber, India
Older review of India particulate and FGD options
This article is several years old but has some current value. Precip upgrades are needed. For example; NTPC Rihand, whose performance is good (gross efficiency of 36 per cent), is upgrading its 25-year-old ESP to meet PM norms of 50 mg/ Nm3. It is installing advanced moving electrode electrostatic precipitator technology in two fields (the remaining four fields in the middle will remain fixed-electrode type) of the ESP. This technology is expected to reduce emissions from around 400-500 mg/ Nm3 to 50 mg/ Nm3. Relative to FGD Major power equipment manufacturing firms have signed patent agreements for SO2 emission control technologies. Thermax has signed partnership with Marsulex, ISGEC Heavy Engineering Company Pvt Ltd with Amec Foster Wheeler, and Bharat Heavy Electricals Ltd. (BHEL) with Mitsubishi Hitachi etc. Domestic companies like Transparent Technologies Pvt Ltd have developed indigenous technologies for SOx, however, they have limited experience of larger installations, NOx and PM control technology and are mostly indigenous.
Revision Date: 7/24/2019
Tags: 221112 - Fossil Fuel 化石燃料, Electrostatic Precipitator, Technology, Emissions Reduction, Upgrade, India
Spray Dryer is a cost effective option for FGD waste treatment
Power plants with wet FGD in the U.S. have two choices --either the treat and discharge path, where the plant must meet the assigned limits for mercury, arsenic, selenium and nitrates/nitrites as N, or a voluntary incentive program using evaporation technology.
Revision Date: 7/17/2019
Tags:
Ontario Hydro converts 135 MW unit to biomass
The capital expenditure for the conversion of Thunder Bay Unit 3 was approximately $3M (Canadian dollars), resulting in a specific capital investment of less than $25/kW (Canadian dollars, net capacity).
Revision Date: 7/16/2019
Tags: 221117 - Biomass Power , Ontario Hydro, Precipitator, Canada
South Korean power plant switches to biomass and upgrades precipitator
The potential for classification of biomass as a carbon neutral fuel provides utilities with the opportunity to economically lowering their CO2 footprint and improving emissions compliance by re-purposing aging coal fired assets. The conversion of coal fired plant to co-fire or to fire 100 percent biomass can be considered as a mature and proven technology which can readily be implemented while retaining fuel flexibility to meet future changes in environmental regulations and market conditions. In Europe and in many other parts of the world biomass is already playing a significant part in the drive to utilise an ever-greater proportion of renewable energy in electricity production. It is hoped that the current direction of the EPA towards a carbon neutral classification for biomass, as evidenced by its recent ruling, is a major step towards stimulating a similar trend in the USA. Dave Wilson is operation manager for Doosan Power Services. Mark Upton, a specialist engineer in boiler design+development at Doosan Babcock described the Yeongdong Power plant conversion in South Korea which included a precipitator upgrade.
Revision Date: 7/16/2019
Tags: 221117 - Biomass Power , Doosan, Korea Southeast Power Co, South Korea
The market in the U.S. for biomass as an alternative fuel to coal has previously been limited due to its classification as a conventional fuel. However if biomass is considered to be carbon neutral status, coal-to-biomass conversions can offer a number of benefits under the right circumstances. Those include a low-cost solution to plant life extension, significant reductions in emissions and a cost-effective solution to increase a utility's renewable energy portfolio. This article is by Robert Broglio, Director Sales for Doosan Power Services, America The different ash characteristics (compared to bituminous coals) and the low sulphur content associated with biomass fuels means that the performance of flue gas dust removal equipment, principally electrostatic precipitators, should be carefully considered. Minor modifications and changes to operating practices may be appropriate.
Revision Date: 7/16/2019
Tags: 221117 - Biomass Power , Doosan, Precipitator
High Chlorine coals are less costly and can create a byproduct
The advantages of using high chlorine coals are the lower cost and the ability to produce a byproduct. This article points out that Illinois coals with 0.2% chlorine content are being burned in many units without extreme corrosion. In fact, it is hard to draw a direct correlation between corrosion and chlorine content. Some coals with 0.3 % coal are being successfully utilized. The conclusion is that there are multiple factors creating the corrosion. Steps such as more even fuel combustion can be more important than chlorine content.
Revision Date: 7/11/2019
Tags: 221112 - Fossil Fuel 化石燃料, Coal, Combustion, Corrosion, USA
TVA has a new ash dewatering system at Gallatin
The Tennessee Valley Authority is touting a newly operational treatment plan to reduce its land footprint for dealing with coal ash at its six-decade-old, coal-fired Gallatin Fossil power plant.
Revision Date: 7/11/2019
Tags: 221112 - Fossil Fuel 化石燃料, Tennessee Valley Authority, Water Management System, Coal Ash Ponds, Water Management, USA
Thermax supplies power plants burning a variety of fuels
Thermax supplied the first ever biomass based IPP set, under the Ministry of New and Renewable Energy, India.
Revision Date: 7/2/2019
Tags: 221117 - Biomass Power , Thermax, Fuels, Philippines, India
Risk analysis to be implemented for refinery ESPs
On February 18, 2015, an explosion occurred in the ExxonMobil Torrance, California refinery’s Electrostatic Precipitator (ESP); a pollution control device in the fluid catalytic cracking (FCC) unit that removes catalyst particles using charged plates that produce sparks during normal operation. The incident occurred when ExxonMobil was attempting to isolate equipment for maintenance while the unit was in an idle mode of operation. Preparations for the maintenance activity caused a pressure deviation that allowed hydrocarbons to backflow through the process and ignite in the ESP. The U.S. Chemical Safety and Hazard Investigation Board (CSB) identified several process safety design weaknesses in the Torrance refinery FCC unit at the time of the incident. As a result, the CSB made four recommendations to Torrance Refining Company LLC. This recommendation is specific to requiring a siting risk analysis be performed of all ESPs and the implementation of appropriate safeguards.
Revision Date: 7/2/2019
Tags: 324110 - Petroleum Refineries 石油精炼, ExxonMobil, Electrostatic Precipitator, Analysis, USA
Thermax supplies ZLD systems which take into account site specific factors
Considering the high operating cost of the ZLD system, it is important to maximize recovery before the ZLD. Selection of proper unit operations and processes can minimize waste generation. Advanced Technologies like EDR can also be effectively used depending upon the effluent characteristics to maximize the recovery. A good zero liquid discharge system forms a successful shape when these selection checks are considered. Thermax Limited has successfully supplied ZLD plants in various segments like automobile, brewery, pharmaceutical, textile, chemical, etc. Few of the supplied installations are running successfully for more than ten years.
Revision Date: 7/2/2019
Tags: 325000 - Chemical Manufacturing , 325412 - Pharmaceutical Preparation Manufacturing , , Thermax, ZLD System, Zero Liquid Discharge
Heat recovery systems for a power plant: PT Bekasi Power, Indonesia
The heat recovery steam generators supplied by Thermax are an integral part of the 130 MW combined cycle power plant set up by PT Bekasi Power, Jakarta. The supplementary fired HRSGs (each of 85 TPH) installed behind two gas turbines and a steam generator converts the waste heat into steam which in turn generates power. Thermax HRSGs have also been installed in projects in several other countries including India, Algeria and the Netherlands. PT Bekasi Power is a power plant located in West Java, Indonesia. It is a subsidiary of PT Jababeka Tbk which was established in 2007. As a 130 MW power plant generated by steam and gas (PLTGU), it strengthens Bekasi – Karawang electricity system through Cibatu substation owned by PT Perusahaan Listrik Negara (PLN).
Revision Date: 7/2/2019
Tags: Thermax, Gas Turbines, Heat Recovery Steam Generator, Combined Cycle, Indonesia
Thermax supplies power plants for waste fuels
Thermax has designed a boiler that will generate steam and power using highly polluting distillery waste – spent wash – as fuel. The first such boiler was supplied to a distillery in Karnataka. Distilleries can be highly polluting as 88% of their raw materials result in waste, which is discharged into fields and water bodies. Spent wash is one of the polluting byproducts of the distilling process in molasses-based plants. This brownish liquid waste is spewed out in large quantities; a typical distillery generates about 1,000t every day. Earlier, this waste used to be treated by bio-methanation (producing biogas to be used as fuel in boilers) or converted to manure through bio composting. However, both methods have their drawbacks. Large quantities of waste still remain after biogas production, posing a serious threat to local water bodies; and bio-composting is hampered by the requirement of large tracts of land and by rains that spread pollution. Although Thermax has extensive experience in burning a wide array of waste fuels, spent wash brought its unique set of vexing problems for the boiler and heater group. Besides the high moisture content, spent wash is highly corrosive and contains melting material that makes combustion difficult. These issues were sorted out after extensive R&D trials, and with coal as a support fuel, the 23 TPH Thermax boiler successfully incinerates the spent wash at the Karnataka distillery. An evaporator concentrates the 1,000t waste to around 200t before it is fed into the boiler. Steam from the boiler is used in the distillery processes and also co-generates 2MW of power. This ended its dependence on the power grid.
Revision Date: 7/2/2019
Tags: 312120 - Breweries , Thermax, Boiler, Evaporator, Distillation
India is using fly ash for land reclamation
Many Indian cities are facing shortage of land, and land reclamation from sea can give great success for these cities.
Revision Date: 6/27/2019
Tags: 221112 - Fossil Fuel 化石燃料, Flyash, Reclamation, India
GEA has supplied more than 6000 MW of dense slurry systems
The very first, then intermittently operated Circumix system was installed in 1990 in Hungary, followed by the first continuous operation mixer in 1992. The first real large-scale system was installed in the Mátra Power Station in 1998 and has been working trouble free since. Mátra was also the first power station where, after a major upgrade in 2000, FGD by-products were also handled by the Circumix DSS. The first overseas project was commissioned in 2003 in the Jacksonville North Side Generating Station, in the USA in Florida. By 2014 the Circumix systems served over 6,000 Mwe coal fired power plant capacity and have safely processed and deposited more than 60 million cubic meters of dense slurry. NAES is the partner in North America. The Mcilvaine CCR decision guide includes a presentation by Dale Timmons of NAES.
Revision Date: 6/27/2019
Tags: 221112 - Fossil Fuel 化石燃料, GEA Group, Flyash, Slurry Systems, Processing, Upgrade, USA, Hungary
Putzmeister efficiently moving dense coal ash sludge at largest brown coal plant in Europe
Putzmeister provides eco-friendly solutions to waste management and on shore drilling that follow a sustainable and efficient process.
Revision Date: 6/27/2019
Tags: 221112 - Fossil Fuel 化石燃料, Putzmeister Solid Pumps, Pumping Systems, Poland
Dense slurry key to ZLD at Hungarian Power Plant
The U.S. Environmental Protection Agency identified biological treatment as the baseline treatment technology for FGD wastewater in the ELGs. However, it is becoming evident that bioreactors exhibit high capital and operating costs, occupy significant space, and are sensitive to changes in temperature and pH. Dense slurry ash management can sequester large quantities of FGD wastewater along with the contained contaminants through hydration, encapsulation, and entrainment for a fraction of the cost of traditional treatment. By using dense slurry sequestration of FGD wastewater, off-site discharge of effluent can be avoided altogether. Dense slurry was employed at (among other plants) the Matra Power Plant near Budapest, Hungary, and this technology played a key role in helping the plant achieve zero liquid discharge (ZLD). The Matra project is summarized and data are presented that show how the technology helped the plant achieve ZLD and other environmental objectives. Note: As of 2001, NAES Corp is a Division of Itochu
Revision Date: 6/27/2019
Tags: 221112 - Fossil Fuel 化石燃料, U.S. EPA, NAES Corp., Slurry, Wastewater, Zero Liquid Discharge, Hungary
SonoAsh separation of carbon in ash creates value opportunities
SonoAsh has developed a sustainable, modular, and patented solution for production and impounded coal ash. The technology creates new pathways to make impounded and production coal ash streams into a consistent manufactured product designed to meet regional and individual customer specifications.
Revision Date: 6/27/2019
Tags: 221112 - Fossil Fuel 化石燃料, SonoAsh, Flyash
High quality clinker created with Chinese fly ash
This article summarizes the use of two fly ashes in the synthesis of Portland/calcium sulfoaluminate (OPC/CSA or A/CSA) clinkers.
Revision Date: 6/26/2019
Tags: 221112 - Fossil Fuel 化石燃料, Flyash, Synthesis, China
Oklahoma Gas & Electric modifies bottom ash ponds to meet CCR requirements
The Red Rock, Oklahoma plant was upgraded in 2015 to meet the CCR rules. Burns & McDonnell provided professional engineering services including evaluation of existing bottom ash settling basins for adequate settling of bottom ash solids as well as structural capacity to meet the requirements of the Coal Combustion Residuals (CCR) Rule. The existing bottom ash settling basins were inadequately sized to limit solids carry-over. Subsequently, an abandoned two-cell coal pile settling basin was repurposed to capture bottom ash solids. Modifications to the bottom ash water system included structural upgrades to the repurposed basin, a jack-and-bore pipe beneath a rail line, overland and below grade HDPE piping, and multiple process modifications to the bottom ash water system. A bottom ash stackout pad, perimeter walls, and stormwater drain system were designed to containerize bottom ash and waste ash solids for temporary storage.
Revision Date: 6/26/2019
Tags: 221112 - Fossil Fuel 化石燃料, Oklahoma Gas & Electric, Burns & McDonnell, Coal Ash Ponds, Ruling, Upgrade, USA
UK is importing ash and taking global view
In 2017 the UK generated only 1 million tons of ash, recovered 0.5 million from landfills and imported 254,000 tons, so demand exceeds supply and this gap will increase with more coal plant retirements. From October 2016, the UK Quality Ash Association (UKQAA) started to accept members from overseas. As the market for quality ash continues to grow, UKQAA believes the importation of ash will have an important role to play in the future. While the main role is to protect and maintain UK production and supply, the transition away from coal-fired power over the next five years will have an impact on supply if UKQAA doesn’t intervene. Importation from around the world has huge potential and the association believes its technical advice, guidance, and expertise can help to safeguard future supplies of quality ash – a material that continues to enjoy considerable demand from the construction industry, and for very good reason.
Revision Date: 6/26/2019
Tags: 221112 - Fossil Fuel 化石燃料, UK Quality Ash Assoc (UKQAA), Flyash, Supply, Demand, UK
South Africa has program to utilize fly ash
The South African electricity public utility Eskom has embarked on a process to increase utilisation of the ash produced through the electricity generation process at its coal-fired power stations. In the 2014–2015 financial year, 119.2 million tons of coal was consumed, producing 34.4 million tons (28.9%) of ash.
Revision Date: 6/26/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Eskom, Flyash, Expansion, Disposal, Electricity Generation, South Africans
Beneficial uses of fly ash will be continuously analyzed
Burns & McDonnell says beneficial use of CCR materials can provide economic and environmental benefits
Revision Date: 6/26/2019
Tags: 221112 - Fossil Fuel 化石燃料, Burns & McDonnell, Flyash, Analysis
Replacement ceramic rotary valves on limestone injection saved money for AC Power
F.L. Smidth supplied ceramic rotary valves to replace high maintenance valves from a competitor on a limestone injection system in an AC power boler. The supplier’s rotary valves are smaller than the ones the plant was previously using, but they can feed more limestone with better control and no blowback. “The new valves provided a more consistent and reliable feed rate to the furnace.
Revision Date: 6/26/2019
Tags: FLSmidth, Rotary Valve, Replacement
Duke must decide on excavating all its NC ash ponds by Aug 1
North Carolina officials have ordered Duke Energy to excavate all its coal ash storage ponds in the state, saying the utility’s current plan for its coal ash sites does not sufficiently protect groundwater.
Revision Date: 6/25/2019
Tags: 221112 - Fossil Fuel 化石燃料, Duke Energy, Coal Ash Ponds, Closures, Ruling, Excavate, USA
CCR costs are at least $50 billion over 100 years for U.S. power plants
With the big potential to beneficiate impounded flyash, the gross cost could be much higher than $50 billion but byproduct sales could put the net cost at less than $50 billon.
Revision Date: 6/25/2019
Tags: 221112 - Fossil Fuel 化石燃料, Burns & McDonnell, EPA, Flyash, Cost, Regulatory Process, USA
India has a flyash disposal problem
India produced about 170 million metric tons of fly ash in 2017. Hundreds of millions of tons are presently stored in ponds which are causing contamination of ground water.
Revision Date: 6/25/2019
Tags: 221112 - Fossil Fuel 化石燃料, Dept of Science & Technology (DST) India, Flyash, Disposal, Production, Utilization, India
Duke will need to excavate or cap ponds at Wabash River Generating Station
Duke Energy will need to create a corrective action plan for its coal ash ponds in Indiana after mandatory groundwater testing found the ponds have contaminants at levels higher than groundwater protection standards.
Revision Date: 6/20/2019
Tags: 221112 - Fossil Fuel 化石燃料, Duke Energy, Coal Ash Ponds, Cap, Regulatory Process, USA
Veolia feedwater treatment package for South African GTCC plant
Veolia Water Technologies South Africa supplied a 10 m3/hour package plant to treat the boiler feed water at a natural gas-fired combined cycle power plant in Tanzania. The packaged water treatment plant will treat process water to the standards required by the power plant’s boilers. The company was contracted by the original equipment manufacturer (OEM) responsible for the supply and installation of heat recovery boilers, steam turbines and other associated equipment. “Correctly treating the water cycle within the boiler system is critical to ensure the boilers provide optimum performance over their service life in order to increase plant efficiency,” explained Kgomotso Khomo, Project Engineer, Veolia Water Technologies South Africa. “Improper treatment of boiler feed water can result in overheating, failure to produce hot water or steam, a drop in the boiler flow rate, an overall loss of efficiency and component damage,” he added.
Revision Date: 6/18/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, Veolia, Water Treatment, Boiler, Steam Turbine, Water and Wastewater Treatment, Tanzania
Boiler Feed Pump upgrade needed because of cycling
At the Fort St. Vrain Generating Station in Colorado, greater pump cycling raised a few concerns.
Revision Date: 6/18/2019
Tags: 221113 - Nuclear Electric Power Generation * , Pumps, Upgrade, USA
Shenhua using Sulzer boiler feed pumps
Based on the successful operation of Shenhua Wanzhou 2x1,000 MW single reheat power plant; Shenhua chose Sulzer for The Beihai double reheat ultra-supercritical power plant operates with steam temperature between 700 and 760°C and pressure up to 350 bar. A complete pump set including a main pump and a booster pump was delivered. The main pump is the largest size of Sulzer HPT pump. State of-art technology was implemented to meet the high operation duties, especially for the design of pressure boundary and double Interstage Take Off (ITO).
Revision Date: 6/18/2019
Tags: 221112 - Fossil Fuel 化石燃料, Shenhua Group, Sulzer Pumps, Pumps, China
Velan was a Major Valve Supplier to Barh
The Velan order for Barh, was worth more than $20 million —it included high-pressure gate, globe, and check valves as well as steam traps and other equipment totaling approximately 4,700 items, plus spares. Six of the 20˝ forged high-pressure gate valves are motor-operated, and they’re in special F91 material for 2900 class service. The plant installed the Velan patented Ultraflex™ wedge valves, an enhanced gate valve with a flexible wedge that is particularly suitable for high-temperature, high-pressure, and severe temperature-pressure cyclic service conditions. This wedge features a novel folded topology that makes it far more flexible than earlier flexible wedge designs of similar proportions, without weakening the wedge blades and detracting from its pressure-retaining function. Velan has supplied the valves to the Russian boiler manufacturer for use in the three 660 megawatt units at Barh.
Revision Date: 6/18/2019
Tags: 221112 - Fossil Fuel 化石燃料, Velan, Valves, India
KSB Group has supplied €2 million worth of valves to a new steam power plant currently being built in Barh, in the Indian State of Bihar.
Revision Date: 6/18/2019
Tags: 221112 - Fossil Fuel 化石燃料, KSB, Valves, India
Wilo Cooling Water Pumps have proved their value at Inner Mongolia Power Station
The ‘Inner Mongolia Shangdu’ power station is one of the main suppliers of electricity for northern China, with capacity of 8 x 600 MW. In its first two years of operation, the power station produced 1.58 billion kWh of electricity. Further plans included an intermediate pumping station between the Luan River and the Shangdu power station. Building such an intermediate pumping station in the grass savannah would have incurred significant additional costs, particularly in winter and in terms of road construction costs, etc. Therefore, Wilo produced an alternative solution to render the project more cost-effective and resource efficient. Five bronze-version water purification units were installed at the Chinese power station. These units had been in operation since 2005 in a water supply pumping station in Inner Mongolia. Since their installation, they have supplied the Shangdu/Neimengu power station with cooling water without any malfunctions. To do so, the pumps extract cooling water at 4 – 10 °C from a reservoir and transport it 35 km miles through pressure pipes (DN 400 – DN 1000) to an intermediate pumping station situated on a hill. From there, the cooling water flows another 35 km through another pressure pipe to the power station.
Revision Date: 6/13/2019
Tags: 221118 - Other Electric Power , Wilo SE, Pumps, Water Cooling, Mongolia
Wilo supplied Vertical Turbine Pumps for Anpara Power in India in 2014
The Anpara Power Station in India is one of the newest and also largest coal-fired power plants on the Asian continent. To meet the gigantic cooling water demands of this 1,200 MW power station, Wilo developed a special pump type using vertical turbine pumps. In total, five of these massive pumps are used to supply the required cooling water. The pumps’ tasks include the extraction and transport of raw, process, and cooling water, irrigation and drainage, as well as ensuring overflow protection. Each pump has drive power of 3,400 kW and supplies 35,600 m³ of water per hour. These are also the biggest cooling water pumps made of metal ever built in the energy sector in South Asia.
Revision Date: 6/13/2019
Tags: 221112 - Fossil Fuel 化石燃料, Wilo SE, Pumps, Water Cooling, India
Tam Phuc Flow Control Supplying Valves for Vietnamese Power Plants
Tam Phuc Flow Solutions Ltd., founded in 2005, provides flow control products and technical services (severe service) focus in the two key industries of Vietnam: Oil & Gas and Power.
Revision Date: 6/13/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, Tam Phuc Flow Solutions, Valves, Flow Control, Vietnam
Crane Continues to Pursue Circor
Crane Co. said Circor International Inc. had rejected its takeover offer of $1.7 billion, forcing it to air its proposal publicly to shareholders in the hopes of cajoling the board into negotiations.
Revision Date: 6/12/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, Crane, Circor International, Valves, Gauges, Takeover
A German power plant experienced premature wear and excessive seal corrosion in its boiler feed circuit and flue gas desulfurization slurry pumps.
Revision Date: 6/12/2019
Tags: 221112 - Fossil Fuel 化石燃料, John Crane, Pumps, Upgrade, Germany
KEI supplies Valves to Indonesian Power Plants
PT. Karya Energi Indonesia (KEI) is a privately-owned company and was established in 2008 in Surabaya, Indonesia. Initially it was an Oil and Gas and Industrial general supply and trading company and has evolved into a major supplier, agent and distributor. It provides solution and technical support for industrial process instrumentation (flow, pressure, temperature and analysis), industrial burners and combustion equipment, process flow control (pressure regulators, back pressure regulators, temperature regulators, valve, control valve) and portable industrial instrument measurement (flue gas analysis, leak detection and differential pressure measurement). KEI pursues opportunities in Oil and Gas, Power Plant, Petrochemical, Cement, Mining, Pulp and Paper, Palm Oil Refinery, Food and Beverage, Water Supply and Irrigation, Wastewater and Sewage Treatment Disposal, Agriculture, Electronics, Processing and Packaging, Marine and Shipbuilding. The company provides valve repair. OEMS include Emerson and CCI as well as Honeywell and Tsurumi Pump.
Revision Date: 6/11/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 325110 - Petrochemical Manufacturing 石化产品生产, KEI, Instrumentation, Valves, Regulators, Burners, Flow Control Equipment, Power, Flow Control, Measurement, Support, Indonesia
Melchers Supplies Valves and Pumps to Power Industry in Myanmar
Melchers is an international group of companies, which has been growing gradually for over two centuries. More than 50 companies worldwide belong to the group. It is based in Myanmar and supplies the power market with pumps and valves. OEMs include Josef Emmerich Pumpenfabrik GmbH, who supplies piston diaphragm pumps for abrasive and corrosive slurries in high-pressure applications. Another OEM is Welland & Tuxhorn AG, which supplies special control valves (for all types of drives) as well as hydraulic actuating systems for conventional and nuclear power stations and industrial plants. Delivery range includes HP- and LP- turbine bypass systems, turbine emergency stop valves, turbine control valves, steam conditioning valves, feedwater control valves, minimum flow control valves, cooling water injection valves, boiler startup valves, boiler blow down valves, desuperheater systems, hydraulic actuating systems and pneumatic actuating systems.
Revision Date: 6/11/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, Melchers Techexport GmbH, Actuating Systems, Valves, Pumps, Power, Myanmar
Neway has succeeded based on emphasis on quality
Neway has been successful in becoming a recognized international supplier of high performance valves. Quality is the absolute key for Neway.
Revision Date: 5/14/2019
Tags: Neway Valve International, Valve, Valve World
SEFA upgrades flyash and eliminates an environmental challenge
SEFA has successfully demonstrated the viability of STAR® Technology through commercialization at three STAR® facilities. The most recent STAR® Plant at the Winyah Power Station has the ability to process 100% ash reclaimed from ponds. The waste heat generated from the STAR® Process is used to dry the pond ash thus making the entire plant a self-sustaining closed loop system. Further, the plant can switch at a moment’s notice from the reclaimed ash to 100% dry ash produced at the power plant, or any blend of both. This flexibility allows full load operation at all times without any dependence on operation of the power generation plant now or in the future. This unique independence is particularly important as the supply of fly ash for the construction industry continues to dwindle as more coal fired generation is taken off line. At the same time the market for high quality fly ash continues to grow. Utilizing reclaimed ash from ponds and landfills will provided continuous feed material and ensures uninterrupted supply for customers.
Revision Date: 5/14/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, SEFA Group, Flyash, CCR Unit, Landfill
Coal fired power in the U.S. and Europe shaped by regulations
Tony Licata provided a good summary of the impact of environmental regulations on coal fired power. He observes that the economic pressures of compliance with the MATS rule and the price of natural gas available for power generation have directly resulted in the closure of more than 30 GW of coal-fired capacity. As a result, there have been regional shortages of fly ash sold to the cement industry. This shortage has caused fly ash to be imported from China in some cases. However, certain high-uranium coal deposits in China produce fly ash that is too radioactive for reuse.
Revision Date: 5/7/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , Flyash, Regulations & Policy, Power
A large combined heat and power (CHP) plant in Iași, Romania needed to meet new So2 emission limits. Two of the plant’s 420 T/hr steam boilers still operate on pit coal, with a fuel oil back up, and the plant took this project as an opportunity to upgrade the entire control infrastructure for the power-generation system. For this project it employed Romanian company, Elsaco Electronic SRL – a member of the Rockwell Automation PartnerNetwork™.
Revision Date: 4/30/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Rockwell Automation, DCS
Improving heat recovery in China
Power generation in China depends highly on coal-fired power plants, which contribute around 70% of the total installed power capacity (1.25 billion kW at the end of 2013) and approximately 78% of the total electricity generation (5.25 trillion kWh).
Revision Date: 4/30/2019
Tags: 221112 - Fossil Fuel 化石燃料, Heat Recovery, China
Green H finned tubes improve economizer performance
To gain the maximum benefit from the waste heat from the boiler there are essential criteria that need to be considered with regard to selecting the most effective economisers.
Revision Date: 4/30/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Greens Power Ltd, Economizer, World Coal
Membrane to condense water and recover heat from flue gas
NETL has partnered with Gas Technology Institute (GTI) and Media & Process Technology Inc. (MPT) who have developed a nanoporous ceramic membrane device that condenses water and recovers heat from flue gas.
Revision Date: 4/30/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Media & Process Technology, Inc., Membrane, Heat Recovery, Power Engineering
Top 250 Energy Companies listed by Platts
The top 2050 energy companies are ranked along with a brief description of each. These include oil, gas, refining and power generating companies around the word. The rankings are based on 2017 data.
Revision Date: 4/24/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, Fluid Bed Drives 流化床传动, 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , Market
UtiliMag®Hmagnesium hydroxide slurry effectively neutralizes WESP effluent. Advantages of UtiliMag®H over alternative technologies: • provides more alkalinity per pound, on a dry basis, than other alkalis such as caustic soda and hydrated lime. One gallon of UtiliMag®H replaces 1.77 gallons of 50% caustic soda. • generates less TDS than other alkalis • provides superior pH controllability – naturally buffers at about 9 pH, the pH upper control limit of most state EPAs • as a high purity, industrial grade Milk of Magnesia, UtiliMag®H is non-toxic (when used properly), non-corrosive, non-hazardous, and safe for employees
Revision Date: 3/28/2019
Tags: 221112 - Fossil Fuel 化石燃料, Martin Marietta, Magnesium Hydroxide, Wet Electrostatic Precipitator
Martin Marietta is reliable source of MgO for U.S.
United States Imports and Exports are significant portions of Apparent Consumption. Magnesia markets tend to be worldwide. China in particular is a major producer and consumer of magnesia products. USGS Data show that China has exported large quantities of magnesium oxide (MgO) to the United States. Magnesia is used in several Markets, and global supply and demand is driven by global product requirements in those markets. Events in China since 2016 have reduced both imports and exports to China. Martin Marietta Magnesia Specialties is vertically integrated. This means an unusual level of control over raw materials such as dolomitic lime from its plant in Woodville OH. That in turn means supply chain stability and a high quality product line made wholly in the USA.
Revision Date: 3/28/2019
Tags: , , 221112 - Fossil Fuel 化石燃料, Martin Marietta, Magnesium Hydroxide
Wet booster fans evaporate small droplets leaving the FGD scrubber
Alden Research Laboratory performed a study in 2012 into the environmental benefits of using wet booster fans, considering that these heat up the treated flue gas by 3 to 5 degrees C. The study included both thermodynamic calculations and physical tests using a laboratory scale model. The study showed that, at nominal unit load, (a) the booster fans will have the capacity to evaporate small diameter droplets contained in the wet gas including all of the water from the fan wash cycle and (b) raise the flue gas temperature sufficiently to enable the thermally insulated, Pennguard lined chimneys to maintain the flue gas temperature just above the water dewpoint, effectively eliminating condensate formation in the wet stacks. A properly designed liquid collection system in the outlet ducts and the chimney breeching will still be needed, to collect bigger droplets that may not have enough time to evaporate.
Revision Date: 3/13/2019
Tags: 221112 - Fossil Fuel 化石燃料, TLT Turbo, Hadek, Alden Research Lab, Inc./ ARL, FGD, Stack, Fan
If you think coal will come back in the U.S. read this
The future of the coal in the U.S. will depend on whether OPEC or the oil majors are right when it comes to the liquids contribution from U.S. shale post 2025.
Revision Date: 3/13/2019
Tags: 221112 - Fossil Fuel 化石燃料, Chemtreat, Longview Power, Chemical, Dibasic Acid
HZ-inova Xerosorp captures acid gases, removes NOX and recovers heat
This device includes sodium bicarbonate injection into a reactor, recovery in a fabric filter and reinjection of captured solids. The cleaned gas then passes into a catalyst system which is efficient at removing NOx at temperatures as low as 200C. This catalyst is regenerated by including multiple modules. One module is regenerated while another module is cleaned. Cited advantages are • Very compact design • Reaches lowest emissions • Lowest Bicar consumption due to residue circulation • Damping of peaks due to high residue buffer capacity in the recirculation system • High energy efficiency due to: – Low pressure drop – Low regeneration rate of catalyst in offline mode – Tail end heat recovery.
Revision Date: 3/11/2019
Tags: 562213 - Solid Waste Combustors and Incinerators , Hitachi Zosen Inova, Dry Scrubber, SCR
Hitachi Zosen Inova utilizes lime based CFB scrubber for WTE applications
The HZI SemiDry process employs the principle of the circulating fluidized bed for efficient removal of acid gases by adsorption with hydrated lime. Recirculation of reagent maximizes reagent use and provides excess reagent to capture contaminant peaks. In addition, activated carbon or coke can be injected for removal of volatile organics and metals. Cited advantages are • Low emissions with a high flexibility relative to load or flue gas contaminant changes • Minimized use of lime as widely-used low-cost reagent • High energy efficiency compared to lime-slurry based systems • High availability and low O&M cost due to simple design and operation • Proven technology with long industry record of success
Revision Date: 3/11/2019
Tags: 562213 - Solid Waste Combustors and Incinerators , Hitachi Zosen Inova, CFB Scrubber, Fabric Filter
SHI Smart Boiler™ includes remote operational support
Sumitomo SHI SmartBoilerTM is an advanced plant operations and maintenance tool which enables plant operators and managers to monitor their boiler’s operation through a host of plant sensors and cloud-based analytics. SmartBoilerTM offers operational support and real-time troubleshooting services provided by remotely located, experienced performance engineers. SmartBoilerTM is particularly helpful when routine boiler tuning is necessary to comply with new flue gas emissions regulations or perhaps when it is necessary to continuously optimize plant heat rate or stack emissions while minimizing limestone and ammonia use. The customer’s DCS is connected through the Internet with SFW’s process specialists who perform plant performance analyses as well as data deviation and disturbance management. SFW process specialists also provide operation support and remote troubleshooting services and offer regular process performance reporting. SFW IT specialists perform daily system administration, software updates to the system, and manage cyber security activities. To be clear, SmartBoilerTM tools and services do not necessarily improve the heat rate of a plant but analyzed data does identify trends, diagnoses problems, and provides performance analysis so that plant staff can operate the plant at peak efficiency and availability.
Revision Date: 3/7/2019
Tags: Coal-Fired 燃煤, Sumitomo Heavy Industries Ltd., Software, IIoT
IAC rebuild of RA filter system for coal fired boiler
IAC evaluated a baghouse rebuild project to review a 16-module reverse air structural baghouse. The original scope of the inspection was to evaluate the baghouse for needed repairs due to concerns over corrosion that had taken place over the years, as well as overall baghouse performance. This baghouse collects fly ash off of the plant's coal-fired boilers, which are used to generate steam for the needs of the plant. A detailed inspection report was generated and sent to the customer. The report included a list of recommendations for a scope of repair work. A substantial portion of these recommendations included the replacement of numerous dampers on the baghouse, as well as the reverse air ductwork. Follow-up meetings were held at the plant to discuss various option for upgrading the baghouse equipment or possible converting it to a pulse-jet. The customer reviewed our recommendations and focused on the damper and duct repair as items to get approved for a baghouse rebuild project. Several months of internal discussions within the plant took place to further define the project. IAC provided budgetary equipment and labor pricing. IAC went through the documentation process with the customer to become an official “approved contractor”. The insurance and safety requirements were substantial. IAC was certified as an approved contractor. IAC provided all supervision, safety management, labor, tools, crane, forklifts, scaffolding, and materials. IAC's wholly-owned construction subsidiary, Adelphi Construction LC, provided all project installation manpower, including project manager, shift supervisors, safety manager, foreman, welders, pipefitters, rigger, firewatch, helpers, and confined space attendants.
Revision Date: 1/28/2019
Tags: 221112 - Fossil Fuel 化石燃料, IAC, Fabric Filter, Maintenance
IAC Recirculating Dry Scrubber 2009 Patent
The present invention provides improved boiler assemblies (10) with enhanced pollution abatement properties through injection and recycling of particulate sorbent materials including sodium bicarbonate, trona, and mixtures thereof. The assemblies (10) include a boiler (12), economizer (14), air heater (15), and recirculation reactor (16). Fresh sorbent material is introduced via assembly (60) into the boiler assembly (10) at one or more injection locations, and serves to sorb NOx, SOx, and other pollutants in the flue gas. The flue gas and entrained sorbent material then pass through reactor (16) for separation of sorbent, which is then recycled for injection back into the assembly (10) upstream of reactor (16). The present invention can also be used in industrial applications where the same emissions are generated and are needed to be controlled. Examples of such applications are Cement and Lime Kilns.
Revision Date: 1/26/2019
Tags: 221112 - Fossil Fuel 化石燃料, 327310 - Cement Manufacturing 水泥生产, IAC, Dry FGD, Patent
TTG membranes laminates used in liquid and gas microfiltration
Membranes: Trinity Technology Group (TTG) provides ePTFE membrane films that provide great protection from chemicals, wind, blood borne pathogens and moisture. They are also known for producing sub-micron rated films for range of microfiltration applications. They make use of state-of-the-art equipment in order to produce moisture-resistant ePTFE membranes of superior quality. • Filtration: Trinity Technology Group (TTG) is specialized in producing industrial filtration laminates and membranes that are manufactured by using advanced equipment through which ePTFE membranes are converted from fine powder of PTFE resins. Their products are perfect to effectively filter air, water and related liquids.
Revision Date: 1/23/2019
Tags: 221112 - Fossil Fuel 化石燃料, 327310 - Cement Manufacturing 水泥生产, 212321 - Construction Sand and Gravel Mining , 221118 - Other Electric Power , TTG, Bag, Media Filter
IAC-Intl uses TTG membranes for fine dust filtration
Industrial Accessories Company (IAC-Intl) has selected TTG membranes for fine dust collection to meet the MACT standards. The surface filtration approach results in a constant pressure drop throughout the life of the bag.
Revision Date: 1/23/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, 327310 - Cement Manufacturing 水泥生产, 212321 - Construction Sand and Gravel Mining , TTG, IAC, Media Filter, Bag
IAC provides modular pulse cleaned baghouses for coal fired boilers with designs up to 2 million cfm
IAC`s M-Pulse, long bag, medium pulse Pressure Baghouse is designed for efficient operation and effective cleaning for large process gas flow applications. The M-Pulse is especially effective on coal fired, biomass, and other steam production applications. The modular design simplifies application up to 2,000,000 CFM.
Revision Date: 1/19/2019
Tags: 221112 - Fossil Fuel 化石燃料, IAC, Pulse Jet, Fabric Filter
Colfax Howden reports solid 2017 and expects APC growth in Africa due to 2020 emission limits
Howden Holdings is a South African based subsidiary of Colfax. Its main business activities are the design, manufacture and marketing of specialised air and gas-handling solutions for a wide range of industries including power generation, petrochemical, mining, iron and steel, cement, water treatment and general industry. 2017 sales were R1,743 million and operating profit was R316 million. 76% of revenue is fans and heat exchangers and 18% is gas cleaning systems. There are opportunities for Howden Projects in air pollution control, as companies are under pressure to align with 2020 emissions limits.
Revision Date: 1/15/2019
Tags: 331111 - Iron and Steel Mills , 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , 327310 - Cement Manufacturing 水泥生产, Colfax Howden, Fan, Heat Exchanger
Colfax predicts growth for its gas handling group but is likely to sell it
Air & Gas Handling markets are improving. Margin momentum will provide healthy profit growth for the Air & Gas Handling systems however, a strategic options review is underway. Goldman Sachs & Barclays are leading the efforts. Order growth of 3-7% is anticipated with operating margins growing from 9 to 11-12%. Mining orders are up which is attributable to the solutions strategy. After Colfax announced that it has agreed to purchase DJO Global Inc. for $3.15B and noted that it is exploring strategic options for the Air & Gas Handling business, Stifel analyst Nathan Jones said he views a sale of the latter business as highly likely in 2019. He sees the acquisition price for DJO Global as "reasonable," Jones added. Assuming Colfax sells the Air & Gas Handling business debt free and receives cash proceeds of $1.05B, and based on the purchase price of DJO and a peer valuation for the welding business, he updated his price target on Colfax shares to $32 from $40.
Revision Date: 1/15/2019
Tags: Colfax Howden, Fan, Heat Exchanger
Terex provides a wide variety of sand washing plants
From sand used in Dubai’s most audacious construction projects to aggregates supplied to the London Olympic preparations, Terex Washing Systems are relied upon by World leading contractors and building materials suppliers to provide the highest quality in-spec. products. Bringing more than 60 years of washing sector experience spanning the widest range of raw material types, final product requirements and geographical variations, TWS provides the complete portfolio of products and services to suit an application. While materials and output requirements vary with each project all aggregate sector clients have the same core needs: high quality, low cost per ton materials. TWS provides versatile modular systems, designed to be installed as quickly as possible and as easily as possible. From the T150 bucket wheel dewaterer, one of the most widely distributed sand washing machines in the World, to the sector defining AggreSand – the World’s first chassis mounted integrated system offering 5 washed products, TWS is always innovating. Terex will be an exhibitor at North American Frac Sands 2019.
Revision Date: 1/15/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 212321 - Construction Sand and Gravel Mining , Terex, Separation
Aggreko mobile gas generators for power in the Permian basin sand plants
One of the largest hurdles miners face is limited access to interconnected power grids, commonly found in remote areas such as West Texas where none exists. Seeking a solution to this problem, many mining companies are turning to mobile natural gas power generation. The use of natural gas power equipment provides significant benefits allowing mining companies to get online quicker and reduce lead time from the feasibility stage to production in remote mining locations where utility power sources are unavailable. In the Permian, one regional frac sand provider built two new mines but faced a challenge bringing both online when the build would be ready long before utilities would be available in the area. The sand producer met with a third-party provider of mobile power generation and was provided with a project specific engineered plan, operations management, technical expertise and 24/7 remote monitoring. Using natural gas generators, 14 MW of power was deployed at each site, utilizing compressed natural gas (CNG) for two weeks until pipeline gas infrastructure was available. Electrical distribution equipment and dedicated, certified technicians were also provided to both sites. The natural gas system provided cleaner emissions and reduced power costs by 40% compared to diesel. And 24/7 remote monitoring ensured the frac sand operator had full visibility and status reporting on the power system, plus maximized uptime.
Revision Date: 1/15/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 212321 - Construction Sand and Gravel Mining , Aggreko, Power Generation
Terex revenues in material processing exceed $ 1 billion
Revenues in 2017 were $4.36 billion. Materials processing accounted for 25% of the total. Net income was $126 million. There are 10,000 employees with 50% in the U.S.---Materials processing equipment is used in processing aggregate materials for building applications and is also used in the quarrying, mining, demolition, recycling, landscaping and biomass production industries. Materials processing equipment includes crushers, screens and feeders, washing systems as well as wood and biomass chippers.---- Heavy duty inclined and horizontal screens and feeders are used in low to high tonnage applications and are available as either stationary or heavy-duty mobile equipment. Screens are used in all phases of plant design from handling quarried material to fine screening. Dry screening is used to process materials such as sand, gravel, quarry rock, coal, ore, construction and demolition waste, soil, compost and wood chips. --- Feeders are used to unload materials from hoppers and bulk material storage at controlled rates. They are available for applications ranging from primary feed hoppers to fine material bin unloading. The range includes apron feeders, grizzly feeders and pan feeders. Washing system products include mobile and static wash plants incorporating separation, washing, scrubbing, dewatering and stockpiling. Terex manufactured mobile and stationary rinsing screens, scrubbing systems, sand screw dewaterers, bucket-wheel dewaterers, hydrocyclone plants for efficient silt extraction and a range of stockpiling conveyors. Washing systems operate in the aggregates, recycling, mining and industrial sands segments.
Revision Date: 1/15/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 212321 - Construction Sand and Gravel Mining , Terex, Screen, Hydrocyclone, Separation, Screening, Crushing
Aggreko frac fluid temperature control solution
Aggreko has developed an innovative solution for Frac Fluid Temperature Control using an inline immersion heat exchange system. In one example Aggreko installed, operated and supported its Immersion Heat Exchanger technology. This diesel-fired system provided constant in-pool temperature control with no external circulation of the frac water. An in-pool circulation system promoted good temperature mixing through-out the entire 3,000 m3 of frac water. Water was heated from – 1˚ C to the customer’s specified target temperature, within the target time frame. Once the target temperature is reached, the system is designed to maintain that temperature for as long as is required.
Revision Date: 1/15/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 212321 - Construction Sand and Gravel Mining , Aggreko, Heat Transfer
Mike Mayers advises linkedin followers that Aggreko provides valuable assistance to frac sand operators needing power during plant construction. He says • “Our Solutions Portfolio includes applications to provide Complete Facility Utility including; High Voltage, Complete Redundancy for Maximized Production, Routine Maintenance, Process Enhancement, and Risk Management.” • Backed by experienced Technical Specialists and a licensed Engineering team, Aggreko helps Frac Sand facilities enhance safety, reduce costs, improve schedules and increase production. Key Strengths: • Sales and Operations Management • P&L Responsibility, Forecasting and Planning • Business acquisition & integration • Strategic Sales, Marketing & Business Leadership • Contract Negotiations, • Continuous Process Improvement
Revision Date: 1/15/2019
Tags: 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 212321 - Construction Sand and Gravel Mining , Aggreko, Power Generation
High efficiency biomass CFB boilers for the Asian market
This paper presents the design aspects of CFB boilers, co-fired with biomasses, by considering the selection of steam conditions, process design and specifics of boiler auxiliary equipment selection, as well as, the emissions control systems for those biomass co-firing applications. In this context, the experience with CFB boilers working with high steam conditions was presented Doosan Lentjes delivered cutting-edge CFB technology and flue gas cleaning (FGC) technology at the Provence CFB Power Station in Gardanne, France. Doosan Lentjes work formed part of a comprehensive coal-to-biomass conversion. This approach contributes to owner commitment to clean, high performance energy production, and is expected to reduce their CO2 balance by 600.000 tons per year. This CFB concept itself proved to sufficiently fulfil typical requirements on gaseous emissions without additional flue gas cleaning equipment (except bag house or ESP). Nevertheless, just in case due to specific local regulation very low emission limits are set up, the plant layout can be easily added by optional SNCR or SCR and lime or sodium bicarbonate powder injection to further reduce the low raw gas emissions of the biomass CFB combustion to figures of below 50 mg/Nm3
Revision Date: 1/10/2019
Tags: 221117 - Biomass Power , Doosan Lentjes, Boiler, Fabric Filter, Control
Doosan Lentjes supplying 2 wet FGD systems in Romania
In 2018, Doosan Lentjes in a consortium with Elsaco Electronic was awarded the turnkey contract to deliver a modern flue gas desulphurisation system for a lignite-fired power plant located in Romania. CET Govora S.A. owns and operates a 2 x 345 MWth lignite-fired power plant located in Ramnicu Valcea, Romania. Against the background of stringent European emissions legislation as per the 2010/75/ EU on industrial emissions (IED), the plant owner is required to install modern environmental equipment. With this in mind, Doosan Lentjes and Elsaco Electronic, a consortium of companies, were awarded a turnkey contract to retrofit the two existing boilers C5 & C6 with an advanced flue gas desulphurisation (FGD) system. In order to deliver on both environmental and economic objectives, the proven wet limestone FGD method being defined as BAT (Best Available Technology) will be applied. The project will help the customer to secure ongoing operation permissions for their two boilers. Doosan Lentjes’ scope of work in the consortium will include engineering, the delivery of key equipment, as well as, advisory services for erection and supervision of commissioning.
Revision Date: 1/8/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , CET Govora, Doosan Lentjes, Boiler, FGD, Limestone, Romania
High efficiency biomass CFB boilers for the Asian market
This paper presents the design aspects of CFB boilers, co-fired with biomasses, by considering the selection of steam conditions, process design and specifics of boiler auxiliary equipment selection, as well as, the emissions control systems for those biomass co-firing applications. In this context, the experience with CFB boilers working with high steam conditions was presented. Doosan Lentjes delivered cutting-edge CFB technology and flue gas cleaning (FGC) technology at the Provence CFB Power Station in Gardanne, France. Doosan Lentjes work formed part of a comprehensive coal-to-biomass conversion. This approach contributes to owner commitment to clean, high performance energy production, and is expected to reduce their CO2 balance by 600.000 tons per year. This CFB concept itself proved to sufficiently fulfil typical requirements on gaseous emissions without additional flue gas cleaning equipment (except bag house or ESP). Nevertheless, just in case due to specific local regulation very low emission limits are set up, the plant layout can be easily added by optional SNCR or SCR and lime or sodium bicarbonate powder injection to further reduce the low raw gas emissions of the biomass CFB combustion to figures of below 50 mg/Nm3 .
Revision Date: 1/8/2019
Tags: 221117 - Biomass Power , 221118 - Other Electric Power , Doosan Lentjes, Boiler, Scrubber, Precipitator, Fabric Filter
Doosan Lentjes super critical 300 MW CFB for low grade coals
In cooperation with its parent company DHI and supported by Doosan Babcock, Doosan Lentjes has developed a reference design for a 300 MW class SC-CFB boiler utilizing low grade coal. The activities have been backed by CFD analysis and physical model testing. The proven pantleg design, an opposed arrangement of 2x2 cyclones and integrated FBHE’s are the main features of the combustor. The flue gas leaving the cyclones enters into a cross-over duct leading to the inlet of the convective pass. The convective pass accommodates most of the heating surfaces. Due to the elevated steam temperatures it has become necessary to arrange a pendent type superheater in the upper part of the combustor. Coal and limestone are fed on the circulated ash flow and enters via 2x4 ducts into the combustor. Flue gas, primary and secondary air system has been designed according to a 2x 60 % approach thus enabling part load operation in case of unavailability of one fan or one rotary air preheater.
Revision Date: 1/8/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Doosan Lentjes, Boiler
Doosan supplying 75 MW CFB and flue gas cleaning for Japanese biomass boiler
Doosan Lentjes is to deploy its circulating fluidised bed (CFB) boiler technology at a new 75 MWe biomass-fired power plant located in Sodegaura, Chiba Prefecture, Japan. The project will be executed under the terms of a larger EP contract awarded to Lentjes’ parent company Doosan Heavy Industries & Construction (DHIC) headquartered in Korea. Scheduled to be completed in June 2022, the project will support the plant owner, Osaka Gas Group, in the economic implementation of a sustainable energy generation concept. In doing so, they will benefit from the reliability and fuel flexibility of the Doosan Lentjes’ CFB boiler technology which is capable of efficiently burning climate-friendly fuel types, as, in this case, biomass wood pellets. Integrated and additionally installed emissions control equipment will further improve the environmental performance of the new power plant to meet stringent local emissions regulations. Commenting on the project, Damian Goral, Product Director at Doosan Lentjes, says: “For several reasons, this CFB boiler contract is an important project for us: Not only it is our newest reference on the highly regulated Japanese market, it also emphasises once again that our technology is recognised to be flexible in delivering performance beyond conventional fuel firing. Drawing back on our experience gained from previous biomass projects allows us to be aware of the certain requirements in respect of both fuel characteristics and boiler adaptions needed respectively”. Doosan Lentjes’ scope of work will encompass both engineering and procurement of the boiler island including the major boiler and key flue gas cleaning equipment. Moreover, the company’s contribution is also expected to cover advisory services for both erection and commissioning along with training.
Revision Date: 1/8/2019
Tags: 221117 - Biomass Power , 221118 - Other Electric Power , Doosan, Scrubber, Japan
Water treatment and cooling applications for power plants
Plant operators need a durable pump technology that is able to dose a precise volume of water treatment chemical, while maintaining a high level of operational reliability. This is one reason why hydraulic diaphragm metering pumps are preferred for a majority of water treatment applications in power plants. The pump’s ability to survive system upset conditions helps keep the overall plant infrastructure operating reliably, all while dosing the exact amount of chemical needed to keep operations running efficiently. Space in any plant is valuable, so operators prefer pumps with small footprints. Disinfection - is accomplished by dosing specific quantities of high-concentration sodium hypochlorite (bleach). When sodium hypochlorite comes in contact with bacteria, it oxidizes molecules in the cells of the germs and kills them. Even though this simple but harsh chemical has been used for more than a hundred years, it is prone to causing problems for pumps by “offgassing.” To solve this issue, the pumps used to deliver it must be able to pass the gas bubbles through without locking or clogging the pump.
Revision Date: 1/7/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, IDEX Corporation, Cooling Tower, Gas Turbine, Pump
Today, many nuclear power plants are realizing that they can save money and streamline operations by replacing larger, and more expensive, diaphragm pumps with smaller rotary gear pumps for the following reasons: Performance - Gear pumps are specifically designed to address high flow rates and deliver uniform, pulse-free dosing. Reliability – Chemicals such as sodium hypochlorite tend to off-gas when they come in contact with metal surfaces. However, non-metallic gear pumps feature a simple design that helps prevent off-gasing, which minimizes disruptions and helps to maximize uptime for water treatment operations. Safety - Because exposure to chemicals such as chlorine gas can cause respiratory issues for employees, great care should be taken to ensure that leaks do not occur when dosing hazardous chemicals. Sealless gear pumps offer fewer points of failure because there are no leak points for harsh chemicals to damage the pump or the surrounding equipment. Streamlined Maintenance – Easy access to the inner workings of a gear pump enables it to be maintained in place, which minimizes downtime by eliminating the need to lock out/tag out the pump and move it to the repair shop. The simpler the design is, the easier the pump is to maintain. This gives plant operators greater flexibility to schedule maintenance between shifts, or whenever it is least disruptive to do so. Smaller Footprint – Rotary gear pumps are compact in nature and they don’t require as many ancillary items as diaphragm pumps do (such as pulsation dampeners), so the overall size of the equipment package can be reduced.
Revision Date: 1/7/2019
Tags: 221113 - Nuclear Electric Power Generation * , IDEX Corporation, Pump, Metering
Chemical companies can reduce total cost of ownership with the right mix of metering pumps
The four most common chemical metering pump applications in chemical manufacturing plants include: • Dosing precise volumes of chemicals to make products • Pretreating the process water to boost quality and efficiency • Dosing antiscaling chemicals to clean and protect plant infrastructure • Post-treatment of the wastewater prior to disposal. Each of these applications can be addressed by reciprocating pumps, which work by using a piston or a diaphragm to dose a precise volume of fluid with each stroke. Reciprocating pumps are highly engineered to provide extreme accuracy at high pressures and relatively low flows. Rotary gear pumps provide a cost-effective alternative for some applications. They work by moving fluid in a circular fashion between gears. Rotary pumps pick up fluid at the suction port between the gear teeth, and they carry the fluid around the outer diameter of the gears to the discharge port. Rotary pumps are best utilized in high-volume, low-pressure applications, and their flow rates can be controlled with variable speed drives. Each pump type has advantages, and they both come at different price points. By incorporating the right mix of chemical metering pumps, DowDuPont, BASF and other chemical companies have been able to save money without compromising on performance.
Revision Date: 1/7/2019
Tags: 325110 - Petrochemical Manufacturing 石化产品生产, IDEX Corporation, Pump, Metering
PTFE Membrane development by Idex reduces metering pump total cost of ownership
Through extensive research and development, IDEX has designed a new PTFE diaphragm featuring a unique chemical composition of PTFE that offers the best of both worlds—combining the benefits of PTFE with the temperature and high-pressure resistance of metallic diaphragms. The result is a smaller, lighter and less expensive pump suitable for the widest range of metering pump applications—from chemical manufacturing to refining to power generation to offshore oil and gas production, and for all forms of water and wastewater treatment.
Revision Date: 1/7/2019
Tags: 221112 - Fossil Fuel 化石燃料, 324110 - Petroleum Refineries 石油精炼, 325110 - Petrochemical Manufacturing 石化产品生产, 212000 - Mining & Quarrying , 322110 - Pulp Mills , 322121 - Paper (except Newsprint) Mills , IDEX Corporation, Pump, Metering
Disinfection, pH adjustment are ways to facilitate greater water reuse in power plants
The effective management of water and wastewater investments can save power plants 1 to 2 percent annually, which adds up to millions of dollars each year. While these benefits may never equal the financial advantages of once-through cooling processes, they do enable power plants to use significantly less water. The criteria for selecting metering pumps typically includes flow rates, pressures and corrosion resistance (depending on what chemicals are pumped). Although plant operators and the engineering, procurement and construction (EPC) firms that serve them have multiple options for pumping infrastructure, the most popular choices usually involve diaphragm or rotary gear pumps.
Revision Date: 1/7/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, IDEX Corporation, Cooling Tower, Pump
RCEP Will Be the Biggest Power Plant Pump Market
The Trans-Pacific Partnership (TPP), which has been renamed the Comprehensive and Progressive Agreement for the Trans-Pacific Partnership (CPTPP), is currently involved in a free trade deal known as the Regional Comprehensive Economic Partnership (RCEP). The partnership involves ten members of ASEAN and its six dialogue partners. If the deal succeeds, RCEP will become the world’s largest trading bloc, accounting for 3.4 billion people with a total Gross Domestic Product (GDP) of $49.5 trillion. It has been forecasted that the coal fired power will remain the largest purchasing segment in the world power industry over the next five years. It is not surprising, therefore, that most of the pump purchases in RCEP power plants will be for the coal fired generation. China has installed over 900,000 MW of FGD systems. Other countries in RCEP are projected to require another 400,000 MW of new and retrofit systems, which will ultimately drive the pump business further.
Revision Date: 12/19/2018
Tags: 221112 - Fossil Fuel 化石燃料, Pump, Pump Engineer, China
Korea Electric Power is increasing Gas Turbine Capacity and replacing some Coal and Nuclear
Kepco has 34,000 MW of coal capacity. It is adding 1,000 MW of coal-fired capacity in 2020 but will retire 1,500 MW in 2021-2 and then 2,000 more MW of coal-fired capacity in 2023-30. IPPs will add 15,000 MW of thermal capacity during the period through 2030 for a total of 40,000 MW. Nuclear capacity will rise with three additions in the next four years, but with retirements will total only slightly less than the present 22,000 MW.
Revision Date: 12/14/2018
Tags: 221112 - Fossil Fuel 化石燃料, Korea Electric Power Co. (KEPCO), Investment
MHI facilitating the opportunity to purchase CFT Products across Divisions
The company is targeting 2018 sales of $ $37 billion rising to $45 billion in 2020……. Under its “Shared Technology Framework,” MHI Group is striving to strengthen its technological and marketing infrastructures, optimize the value chain across the Group (including procurement), and reinforce the competitiveness of its businesses in the medium-to-long term. MHI Group handles a greater variety of products than its competitors, and in order to turn this product diversity into competitiveness, it is promoting group-wide technology and knowledge sharing in product development. Applying cutting-edge technology from gas turbine development to numerous other products, such as compressors, centrifugal chillers, and turbochargers, is one example of what it is doing to realize conglomerate synergies by technology and knowledge sharing. Combust, flow and treat (CFT) suppliers therefore have the opportunity to also understand the group-wide opportunities and offer packages covering the gamut of opportunities. CFT opportunities are mainly in the following two of three main divisions----- POWER SYSTEMS: Intelligent Transport Systems gas and steam power generation systems, nuclear power plant equipment (light-water reactors/nuclear fuel cycle & advanced solutions), wind power generators, aero engines, compressors, marine machinery.-------- Overview of Fiscal 2017----------- Having been hit by global market factors such as the acceleration of the shift to low-carbon approaches and the switch to renewable energy, coal-fired power plants saw a significant decline, and order volumes for gas turbine combined cycle (GTCC) systems also fell considerably. As a result, consolidated orders received decreased year on year, to ¥1,437.5 billion. Consolidated net sales rose year on year to ¥1,493.9 billion, driven by steady progress in work-related to orders for gas and steam power generations, as well as increases in aero engines. Although there were improvements in the profitability of the gas and steam power generations, aftersales service, due to such factors as the decline in nuclear power plant equipment, operating income was flat year on year at ¥108.9 billion. ------ INDUSTRIAL: Metal machinery, environmental systems, paper converting machinery, mechatronics systems, ITS, material handling equipment, engines, turbochargers, air-conditioning & refrigeration systems, automotive thermal systems, machine tools, commercial ships, transportation systems, and chemical plants.------------- In addition to increases in metals machinery on the back of strong infrastructure investment, orders grew for turbochargers, material handling equipment, air-conditioning & refrigeration systems, and other items due to economic expansion, primarily in developed countries. Consequently, consolidated orders received rose year on year to ¥1,711.3 billion. Consolidated net sales exceeded the level of the previous fiscal year and rose to ¥1,898.9 billion, driven by increases in material handling equipment and turbochargers, for which orders were strong, and in commercial ships.----- EXAMPLES of CFT OPPORTUNITIES: Flue gas desulfurization, waste-to-energy, geothermal, CO2 recovery, marine scrubbers, sinter plant waste heat recovery, gas turbine combined cycle plants, coal-fired boilers---- ENERGY EFFICIENCY: The company is focused on improving energy efficiency with data analytics and remote monitoring. It is fostering cross divisional projects.
Revision Date: 12/14/2018
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, 331111 - Iron and Steel Mills , 221116 - Geothermal Power , Mitsubishi Heavy Industries, Investment, Sale
Cement Kiln Dust for SO2 removal
From 10 to 12 million tons of cement kiln dust accumulates annually at domestic cement plants. This finely divided dust is emitted from cement kilns to prevent the buildup of excessive salts in the cement product. If separated into its valuable components, waste cement kiln dust could become a significant source of potassium and a raw material for making cement. This article does not include the use of this dust for SO2 removal from coal-fired boilers, but potassium is very reactive and would be a good reagent. One question is its use in direct sorbent injection or DSI. There is widespread use of drinking water plant lime sludge as an FGD reagent. So other alternatives should also be explored. The use would be primarily where a small boiler is near a source or where multiple sources can be included so that enough reagent for a large application is available.
Revision Date: 12/13/2018
Tags: 221112 - Fossil Fuel 化石燃料, Reagent Preparation, Dust Collecting
Biological Treatment or ZLD for FGD Wastewater
The Biological treatment process is perceived as the low-cost option to FGD treatment and the Zero Liquid Discharge process is perceived to be more expensive from a CAPEX and OPEX standpoint. While this is true, the difference is not as much as has been presented within the market by various engineering firms. In addition, there are options for achieving ZLD while reducing the costs associated with this alternative. Burns & McDonnell has postulated that the cost of biological treatment plants and ZLD plants are closely competitive up to 200 GPM whereas CH2M indicates the installed cost of ZLD to be three times that of Biological treatment. The equipment costs and estimated installation costs of the ZLD system generated by Aquatech paint a much more positive depiction of the relative installed costs of ZLD compared to Biological treatment.
Revision Date: 12/13/2018
Tags: 221112 - Fossil Fuel 化石燃料, Burns & McDonnell, Jacobs Group, Aquatech, Zero Liquid Discharge
How vinyl ester linings can help defend against aggressive conditions experienced in FGD processes.
This is a white paper by Hempel which is available through the Power Engineering site. McIlvaine has been following the use of these linings as opposed to metal alloys or FRP. They have been popular in China.
Revision Date: 12/13/2018
Tags: 221112 - Fossil Fuel 化石燃料, Hempel Americas, Lining, Power Engineering
Improving Plant Efficiency with Pump Performance and Condition Monitoring
Studies show pumps tend to be some of the more maintenance-intensive equipment in a plant, suffering a failure or some level of degraded operation on average every 12 months. Pumps in especially critical situations often have duplex and even triplex installations as backups, ready to switch over at a moment’s notice, such is their importance. Reactive maintenance, where it is necessary to fix something that has failed, costs 50% more than practicing predictive maintenance where problems can be detected and resolved before a failure. Pumps can be equipped with sensors to monitor condition and performance to ensure problems are detected as soon as possible so appropriate action can be taken…………... Over the last few years, the number of devices designed for equipment monitoring capable of operating on wireless networks has grown substantially. Some communicate using a plant’s Wi-Fi network, but a larger group has been designed to communicate via WirelessHART, the same network used by many types of wireless field instruments (Figure 2). The variety of low-power and low-bandwidth devices designed for these networks has grown enormously, and for all practical purposes, every type of monitoring device necessary for a full pump monitoring setup is available for use with WirelessHART networks.…………... Apps make it simple to perform real-time asset monitoring of a pump installation by identifying abnormal situations as they develop. Pre-packaged analytics evaluate health against unit history and industry norms, and the information is displayed via intuitive dashboards. All of this is possible with minimal configuration effort and no additional loading on the existing automation system. If desired, reporting and alarming functions can be added to external systems, but this is entirely optional.…………... New apps are available for health monitoring in conjunction with the wireless instrumentation, independent of the plant’s real-time automation system. These apps are easy to use because each is configured for a specific type of asset. Just as there are apps for pump monitoring, there are corresponding apps for other types of assets such as steam traps, heat exchangers, cooling towers, pressure relief devices, and more. This specialization helps deliver sophisticated analytics without having to create customized programming. The customization is already built into the platform, supporting fast implementation.……………
Revision Date: 11/29/2018
Tags: 221112 - Fossil Fuel 化石燃料, Emerson Automation Solutions, Pump, Wireless Network, Analyzer, Power Magazine
Advanced Process Control for optimizing Flue Gas Desulfurization
Yokogawa is improving plant efficiency by reducing pump horsepower while maintaining needed SO2 removal. The optimization system typically consists of three functions: enhanced regulatory control, model-based prediction, and process value prediction. The system uses these three functions to continuously determine the minimum required number of recirculation pumps in operation, and to calculate the setpoint for the limestone slurry flow PID (proportional-integral-derivative) control loop……………... Enhanced regulatory control governs the number of recirculation pumps in operation and calculates the slurry flow setpoint. It also calculates the optimal pH setpoint, using feed-forward control for some abnormal cases. Enhanced regulatory control also keeps track of the run time of each recirculation pump, and uses this data to equalize the operating times of the pumps.……………... This optimization system automatically adjusts to different coal types because it uses the inlet SO2 value as an input to the system. This value varies significantly based on the coal type and is an important parameter for optimizing control. The system also automatically adjusts for spray nozzle plugging and pump performance deterioration. Varying plant load is not a problem as the optimization system works well in the range from low to full load.……………... A 700-MW coal-fired power plant in Japan implemented the optimization system described above. This plant runs about 300 days per year at baseload, and is not in operation for the other 65 days of the year. The energy savings realized by running only the required number of recirculation pumps was 12.4% of the unit’s total house load, equating to about $900,000 in energy savings per year based on market conditions in Japan. Another benefit was reduced pump run times, which resulted in lower pump maintenance costs and extended pump life. A third benefit was less limestone usage.………………
Revision Date: 11/29/2018
Tags: Yokogawa China, Power Magazine
Advanced Sensors for Power Plant Instruments
Mettler Toledo is offering pH and other instruments with advanced digital sensors that go well beyond basic measurement and digital signal conversion within the sensor. Such sensors fully exploit the opportunities available when measurements are made right next to the sensor element. They don’t compromise the measuring circuit design in order to accommodate the resistance and capacitance of long analog signal cables, especially for conductivity measurement. They don’t incur uncertainty when different measuring circuits are used to calibrate the sensor than are used in the final installation because the measuring circuit is inseparable from the sensor elements. In addition, they always utilize correct calibration data for their measurements because on-board memory retains it. Advanced digital sensors include real-time predictive diagnostics. These take the sensor’s cumulative operating exposure into account to forecast in real time when calibration, maintenance and replacement will be needed. Taken together, the sum of these advanced sensor capabilities are designated Intelligent Sensor Management or ISM®. ISM sensors are able to warn of the need for service before loss of accuracy or failure, making the measurements more reliable and increasing the efficiency of maintenance scheduling. They can also eliminate unnecessary servicing
Revision Date: 9/12/2018
Tags: 221118 - Other Electric Power , 221118 - Other Electric Power , Mettler Toledo, Instrument, Ultrapure Water, pH, Conductivity
Coal Fired Boiler Pump Repair and Replacement Market
Coal fired boiler pump forecasts can be determined for the largest purchasers who purchase most of the pumps.
Revision Date: 9/5/2018
Tags: 221118 - Other Electric Power , Pump, Pump Engineer
Yokogawa wirless system for monitoring rotating equipment
Yokogawa has created a sensor and wireless transmitter system designed specifically for continuous monitoring of the rotating equipment commonly used in process manufacturing facilities . The system is designed for easy installation on a wide variety of equipment. The piezoelectric acceleration sensor is compact and easy to install near the device’s bearings . A cable connects it to a wireless communication module, which can be mounted wherever it is convenient, and where it can be clear of obstructions able to interfere with its signal propagation. The complete system is self-powered using a battery in the communication module. With a one-minute data update rate, one set of batteries can run for up to 10 years. The data is sent via the wireless network to the system gateway. If other ISA100 Wireless field devices are already in use in the facility, the vibration monitors can become part of the same network, communicating with the gateway just like any other communication module or sensor. Data from the units installed throughout the plant can be directed to a control or monitoring system to inform operators and maintenance personnel as conditions change with the equipment being monitored.
Revision Date: 3/23/2018
Tags: Yokogawa Electric, Pump, Monitoring
Maintaining High Combined Cycle HRSG Efficiency and Reliability
This article in Power Engineering by Brad Buecker of Kiewit addresses chemical treatment of HRSG feedwater. During the heyday of coal-fired power plant construction and operation in the last century, many lessons were learned regarding correct water/steam chemistry control in high-pressure, fossil-fuel steam generators. Even seemingly minor issues had the potential to cause serious problems, and some corrosion-induced failures led to injuries and death of plant personnel. Progress in transferring these lessons to the combined cycle power industry has often been slow, and a number of outdated chemistry concepts continue to appear in the specifications for new combined cycle plants. Some problems are magnified by the unique geometrical features of heat recovery steam generators (HRSGs) as compared to their coal unit counterparts. This article will examine three of the most important issues in this regard, as outlined below: • Unless the condensate/feedwater system of the HRSG contains copper alloys (very rare), an oxygen scavenger should not be part of the chemical treatment program. Use of oxygen scavengers, a more accurate term is reducing agent, induces flow-accelerated corrosion (FAC) of plain carbon steel. FAC has caused catastrophic piping and tube failures at a number of facilities over the last three decades, and it continues to occur at many plants. • Tri-sodium phosphate has served as the primary chemical for boiler water treatment in many base-loaded coal units, and the chemistry is often employed in HRSGs. Even at steady load, phosphate treatment is problematic due to the phenomenon known as phosphate hideout. In cycling units, hideout may make phosphate chemistry extremely difficult to control. • While a strong focus should always be placed on operating chemistry, off-line chemistry control is frequently neglected. Air in-leakage into water-filled steam generator networks during down times can significantly damage tubes, piping, turbine blades and rotors, and other equipment. Given the regular cycling nature of most power plants in today's environment, the potential for air ingress and subsequent corrosion may be extensive.
Revision Date: 3/5/2018
Tags: Kiewit, Feedwater, Chemical, Heat Recovery Steam Generator, Power Engineering
Valve Considerations when repowering a coal plant to use a gas turbine
Steve Brown of Crane analyzes valve requirements when repowering from coal to gas .Both cast and forged valves are important for the power industry with forged valves becoming more preferred in the most demanding applications and cast valves still comprising the balance of power plant valve installations.
Revision Date: 4/19/2017
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, 221113 - Nuclear Electric Power Generation * , Crane, Ball Valve, Actuator, High Performance Valve, Steam Cycle
Power steam cycle control valves -Trimteck
Power point presentation with diagrammatic locations of valves in various steps in the steam cycle. E.g. main steam cycle . Superheater valves: Maintain boiler pressure below 70%; and modulate pressure to the turbine. Main Steam Attemperator Valve: Controls HP Turbine Temperature at 15% Load Reheater Attemperator Valve: Controls LP Turbine Temperature at 15% Load . Turbine Bypass Valve 6. Superheater Bypass
Revision Date: 3/23/2017
Tags: 221112 - Fossil Fuel 化石燃料, 221113 - Nuclear Electric Power Generation * , 221112 - Fossil Fuel 化石燃料, Trimteck, Ball Valve, Gate Valve, Actuator, High Performance Valve, Steam Cycle
BWR auxiliary feedwater valves in OTSG
Air-operated valves LCV-4025 and LCV-4026 control steam generator level for the “A” OTSG, and LCV-4007 and LCV-4009 for the “B” OTSG. The level control system for each valve receives a level input signal from a startup range OTSG level transmitter in the essential controls and instrumentation (ECI) system. This signal is compared with a level setpoint, and the resultant error signal modulates the control valve using a proportionalplus- integral controller. Manual control is available in both the main and auxiliary control room. Parallel flowpaths (one from a motor-driven pump, one from the turbine-driven pump) and redundant instrumentation and control power supplies for the level control valves ensure flow to each OTSG. Motor-operated block valves (V-14A and V-31B in the “A” OTSG supply, V-37A and V-20B in the “B” OTSG supply) provide redundant feedwater isolation of an OTSG. The turbine-driven and motor-driven pump discharge lines combine to supply the auxiliary feed ring in each OTSG.
Revision Date: 3/23/2017
Tags: 221113 - Nuclear Electric Power Generation * , High Performance Valve, Actuator, Steam Cycle
Steam atteperator valve and actuator selection
AEP replaced the existing attemperator valves and actuators with Koso valves and Rexa Electraulic (electro-hydraulic) actuators, giving rangeability and control down to 0.5 percent open.
Revision Date: 3/23/2017
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, 221113 - Nuclear Electric Power Generation * , High Performance Valve, Actuator, Steam Cycle
Electric actuators should be considered for BFR valves - Rexa
The Boiler Feedwater Recirculation (BFR) Valve, protects the plant’s investment in the boiler feedpump while still allowing the feedpump to deliver the required flow to the boiler. Depending upon plant type and design, the feedwater recirculation valve sees upstream pressure in the 2500-4500PSI range, and is responsible for taking almost a full pressure drop across the valve. Since this valve is usually closed during normal operation of the plant, the valve is typically designed for Class V shutoff, and needs to fail open on loss of power. Electric actuators have a number of advantages which have been demonstrated by a quik ROI when they replaced pneumatic actuators on this application.
Revision Date: 3/22/2017
Tags: 221118 - Other Electric Power , Rexa Inc., Steam, High Performance Valve
Considerations relative to IIoT and application for pumps
IIoT can offer new opportunities beyond merely providing smarter pumps. It could enable better predictive analytics and preventive maintenance to help end users fix pump problems before failures occur. Also, the IIoT’s data analytics and reporting provide pump manufacturers with more detailed information about the operation of their systems in the field, which could benefit product development.
Revision Date: 1/11/2017
Tags: Accudyne, Pump, Automation
Enterprice Asset Performance Management solutions from Schneider Electric
Using the comprehensive Enterprise Asset Performance Management (APM) solution offered by Schneider Electric, organizations can monitor their assets to identify, diagnose and prioritize impending equipment problems — continuously and in real time. This enables companies to reduce unscheduled downtime, prevent equipment failures, reduce maintenance costs, increase asset utilization, extend equipment life and identify underperforming assets
Revision Date: 1/11/2017
Tags: Schneider Electric, Automation
Evoqua Water Technologies LLC - New USEPA ELGs and CCRs Regulations
Conserve Capital, Lower Future Operating Costs and Ensure Compliance.This video covers the USEPA Effluent Limitation Guidelines (ELGs) and Coal Combustion Residuals (CCRs) regulations, Presenters are Chuck McCloskey, Director of Industrial Wastewater Service and Mike Riffe, Industrial Application Engineering Manager Evoqua has substantial experience in the design, construction and operation of Flue Gas Desulfurization (FGD) physical treatment systems that are designed to remove the heavy Total Suspend Solid (TSS) load of scrubber purge streams.
Revision Date: 12/9/2016
Tags: Evoqua, Wastewater, Regulation
Audit by Evoqua results in power plant savings for power, chemicals and labor costs
An uninterrupted supply of high-quality water is vital to power plant operations. When making outage plans that include preventative maintenance on key plant systems, plant personnel should address the plant’s water treatment equipment, ensuring it receives the same high level of attention as its boiler, condensers, turbines and process equipment. So, how does a maintenance planner know whether the water treatment system is operating at its best and that it can meet the power plant’s current and future demands? One way is to plan an audit of the water treatment equipment before a planned outage. The audit should start with a system check-up to assess system conditions, performance and efficiencies and to pinpoint areas that need improvement. The check-up also can determine if a full system audit is required to provide a more in-depth investigation of a single or multiple water unit operation. The system audit should address the individual challenges of specific situations and include an in-plant survey and a summary of findings and recommendations for improvement.
Revision Date: 12/9/2016
Tags: Evoqua, Wastewater, Cost, Reverse Osmosis, Ion Exchange
Northeast coal fired power plant uses Evoqua ion exchange resins to remove vanadium from wastewater
When a coal-fired power plant in the Northeast discovered that the runoff from its ash pile contained vanadium levels exceeding discharge limits, it contacted Evoqua Water Technologies, for assistance. Test results showed ion exchange (IX) resin would remove roughly two pounds of metal for every cubic foot of resin. Calculations indicated the entire pond could be treated with less than 60 cubic feet of ion exchange media. The Evoqua’s solution featured two (2) 36” x 72” steel vessels, each containing roughly 30 cubic feet of resin. The tanks were installed in series with sampling ports after each vessel. The final effluent is sent to a holding tank for testing by a statecertified laboratory prior to discharge, to confirm that the vanadium level is within limits. When the resin in the vessels reaches capacity, the local Evoqua service branch is notified and delivers fresh tanks containing new resin to the site. Exhausted tanks are shipped to Evoqua’s RCRA-permitted treatment facility where the contaminants are removed from the resin and recycled into a raw material.
Revision Date: 12/9/2016
Tags: Evoqua, Wastewater, Ion Exchange
Coal analyzer at Hunter Station used to optimize coal blends
In order to estimate the ash fusion temperatures in the coal being sent to the power plant PacifiCorp Hunter Station needed an analyzer that could measure the ash constituents whose proportions determine ash fusion. The Gamma-Metrics Coal Quality Manager (CQM) analyzer from Thermo Electron Corporation provides minute-by-minute analysis of SiO2 , Al2 O3 , Fe2 O3 , CaO, TiO2 , K2 O, and Na2 O in the ash. PacifiCorp installed one of these units in its coal yard to blend coals of differing ash composition, in order to keep the blended coal’s ash softening temperature above 2175degrees F. In order to take advantage of the potential of this instrument several steps had to be taken. First the analyzer had to be rigorously calibrated and evaluated in the field to verify that the desired accuracy was achieved. Meanwhile the utility had to analyze its boiler characteristics and coal characteristics to be able to derive an ash fusion equation appropriate to the plant. Then the necessary operational steps had to be taken to ensure that source coals capable of achieving the target blend could be initially segregated and then blended at the correct ratios. After some startup difficulties, the analyzer and the blending system have been very successful in maximizing the ash softening temperatures, and the plant has substantially reduced its forced outages due to slagging while burning a variety of available fuels.
Revision Date: 12/9/2016
Tags: Thermo Fisher, BHE Environmental, Inc., Analyzer, Coal
Bacterial Contamination of Turbine and Circulating Lube Oil Systems
Bacterial contamination of large circulating oil systems in steam turbines is an expensive problem. This paper describes the problem and lists the types of lubricants and conditions that appear to be most susceptible, methods of treatment and known methods to clean up and prevent bacterial contamination.
Revision Date: 11/23/2016
Tags: PacifiCorp, BHE Environmental, Inc., Lubrication
Richard Winslow is a niche expert on power plant lubrication
Richard Winslow is a niche expert on power plant lubrication We first learned about Richard’s lubrication expertise in an article he wrote when he was with PacifiCorp. There was a pulverizer wear problem at the Naughton plant of Pacific Corp. An advanced filtration technology for the coal pulverizer was determined to be readily available for heavy gear oil that would meet solve the maintenance problems. An off-line kidney loop filtration package using a high-efficiency, high-dirt-holding capacity, synthetic filter media was solved the problem. Richard moved on from PacifiCorp and most recently has been in Alaska with ConocoPhillips. He has agreed to a niche expert role in our linkedin discussions and decision system. In addition to his Naughton paper we have also include his paper on minimizing bacterial contamination. His resume is attached.
Revision Date: 11/23/2016
Tags: BHE Environmental, Inc., Niche Expert, Lubrication
Mann & Hummel spin-on filters are used for the filtration of lube oil
MANN+HUMMEL has been a leading producer worldwide of spin-on filters for more than twenty years. The filters are distributed under the MANN-FILTER brand and a number of customer brands. Features include: Available with a variety of filter media • Efficient separation and high dirt holding capacity with minimal pressure drop • Robust, corrosion-protected housing with high pulsation and pressure stability MANN+HUMMEL spin-on filters are used for the filtration of lube oils, hydraulic oils and coolants in a variety of applications. MANN+HUMMEL has been a leading producer worldwide of spin-on filters for more than twenty years. The filters are distributed under the MANN-FILTER brand and a number of customer brands. 8 • Improved flow geometry • Bypass valves with clearly defined opening characteristics and leak-free closing • Undetachable seals • Stable central tube resistant to collapse • Non-return valve with minimal pressure drop
Revision Date: 11/18/2016
Tags: Mann+Hummel, Filter, Cartridge, Lubrication
BHE Safety relief valves needed by many BHE plants
BHE Safety relief valves needed by many BHE plants We have provided three tiers of information relative to some of the safety relief valve initiatives at BHE. This is a brief summary which links to much more detailed information. This second tier contains links to insurance reports, bidders lists and other full reports. • Pacificorp Currant Creek GTCC plant approved bidders list lists GE ( Consolidated as the preferred supplier with Pentair and Curtiss Wright as acceptable safety relief valve suppliers for a gas turbine combined cycle projects • The Pacificorp Hunter Staton 2002 insurance report discusses a generator failure of the generator and comments on safety relief valves. • A report on Pacificcorp Prospect No. 3 hydroelectric project relicensing covers PRV where critical to ramping events . • There was an investigation into Gas transmission relief valve failure in Utah. • Chehalis generating station energy savings projects analysis conducted by Cascade Energy included relief valves for lubricant filter systems • Lakeside Power Block 2 has relief valves for the ammonia tank and relief valves for the water injection system plus recirculation valves • A biogas generator includes tanks used in the anaerobic digestion process with emergency relief valves With 110 gas turbine power plants, 41 coal fired boilers, 71 compressor stations, and many geothermal, wind and solar plants BHE is a major user of safety relieve valves.
Revision Date: 11/18/2016
Tags: BHE Environmental, Inc., Valve, Safety Valve
Interconnecting compressor initiatives at BHE
BHE has 110 gas turbine units, 4l coal fired plants, 71 compressor stations and many renewable energy facilities. Compressors are used at many of the locations. The bidders list on gas turbine plant shows Gardner Denver as preferred and several others including Atlas Copco as acceptable. Another show Atlas Copco as preferred and Gardner Denver as acceptable. The new interconnect program for BVHE created by McIlvaine will help the plans communicate and lead to global specifying. Here are examples of the compressors being specified
Revision Date: 11/18/2016
Tags: BHE Environmental, Inc., Compressor
Ovivo condensate polishing system is installed at large South African Power plant
The Eskom Medupi Power plant has installed an Ovivo Condensate Polishing Plant (CPP) at all six coal fired units. The CPP is designed to produce treated condensate with cation conductivity less than 0.1 μS/cm, chloride less than 1 μg/l (less than 1 ppb) and silica less than 5 μg/l (less than 5 ppb). The CPP treats 100 per cent of the condensate flow under normal operating conditions. This removes iron and copper corrosion products, as well as dissolved cationic and anionic impurities, while allowing ammonia ions to pass through, when operated in the ammonia cycle, maintaining a high pH to protect the condenser. The first stage of condensate polishing utilizes cartridge filters to remove most of the particulates.
Revision Date: 11/14/2016
Tags: Ovivo Inc, Cartridge, Condensate Polishing, Ion Exchange
Corporation decisions based on shared values and CSR
Mike Sullivan of BHE Energy points to the Scandinavian policies to insure that corporations include social values in their decision making. He talks about incorporating the shared values of the employees as one aspect. We suggest you read this thought provoking article but also review the McIlvaine Sustainability Universal Rating System . This system provides a way to more accurately determine the values of BHE employees but also voters. The recent election underscores the importance of understanding the values which are important to voters.
Revision Date: 11/14/2016
Tags: BHE Environmental, Inc., Sustainability
Calcium bromide success at Coalstrip
Coalstrip is partially owned by BHE PacifiCorp. Calcium bromide was successfully tested at the plant in 2007 with the following results. It achieved about 90% reduction in mercury emissions and an emission rate of about 1lb/Tbtu
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., Calcium Bromide, Mercury
Older test data on CaBr2 performance
The older field testing program by NETL included references to BHE Dave Johnston and Coal Creek where ACI was compared to CaBr2 Using CaBr2 injection to achieve 85% total Hg removal at the “representative” PRB-fired unit equipped with an SCR, results in 20-year levelized costs of 0.13 mills/kWh and $2,800/lb Hg removed. This analysis shows that Hg control via CaBr2 coal treatment is not a capital-intensive process and high levels of FGD Hg capture can be achieved at relatively low injection rates, particularly at units equipped with an SCR for Nox control.
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., Mercury, Calcium Bromide
SCR and calcium bromide to be used at Jim Bridger 3 and 4
Chad Teply of BHE testified in 2012 as to the reasons SCR and CaBr2 injection were the best choice for Jim Bridger 3 & 4. The substantial capital investment was based on a retirement date of these units in 2037. The unit 3 system was to be installed in 2015 and unit 4 in 2016. The Jim Bridger Units 3 and 4 emissions control investments proposed in the Request are SCR systems and associated ancillary equipment for each unit. Each SCR system would be comprised of two separate universal reactors, with multiple catalyst levels; inlet and outlet ductwork; a shared ammonia reagent system; an economizer upgrade; structural reinforcement of the boiler and flue gas path ductwork and equipment; and extension of the existing plant distributed control system (“DCS”). An induced draft (“ID”) fan upgrade and an associated auxiliary power system variable frequency drive (“VFD”) insertion is required on Unit 4 only. Jim Bridger Units 3 and 4 it will be necessary to add a coal additive, namely calcium bromide (“CaBr2”), to oxidize mercury and then add a scrubber additive to prevent readmission of mercury in the scrubber system. The potential exists to reduce the coal additive requirements due to the SCR.
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., Calcium Bromide, Variable Frequency Drive, SCR, Mercury, Fan
Huntington 1 and other Western States CCP plans
Jeff Burks of Energy Strategies presented plans in October 2015 for Western States to meet CO2 emissions. A graph shows the Huntington 1 emissions with no changes and the goal with reductions starting in 2022.
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., CO2, Regulation
Wastewater permit for coal and combustion turbine plants in Gillette Wyoming
This 2015 permit authorizes the discharge of wastewater from six coal fired power plants, two combustion turbine power plants, and one coal mine. The Neil Simpson and Wygen generating power plants and the coal mine are located approximately six miles east of Gillette, Wyoming. Most of the wastewater generated by the facility is recycled, so this facility rarely discharges. Discharges usually occur in response to large storm events. Note below that the facilities are air-cooled, so they do not discharge cooling water. Therefore, 316(b) regulations do not apply. In addition, make-up water is partially treated water from the Gillette wastewater treatment plant, not waters of the Wastewater originating from the variety of sources is routed to a two cell settling pond. The first pond, called the Bottom Ash Settling Pond, functions to provide settlement for sediments and ash by-products. Wastewater from this pond overflows to the second pond called the Clear Pond. The Clear Pond has an outlet structure (Outfall 001) that allows the discharge of the treated wastewater to Donkey Creek. However, because a majority of the wastewater that enters the settling ponds is recycled, there is seldom a discharge to the creek.
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., Regulation, Wastewater
Rate increase based on various projects at BHE RMP
This rate increase testimony shows the large number of people in various groups at RMP and its consultants who are involved with FERC discussions. The Commission approved RMP’s application for a rate increase, with adjustments, for a revenue requirement of $20,188,227 from $32,365,515, a return on equity of 9.5% from 10.00%, and a rate of return of 7.412% from 7.669%On March 3, 2014, RMP submitted an application requesting authority to increase its retail electric utility service rates by approximately $36.1 million per year, or 5.3 percent. RMP included with its application the prefiled direct testimony of 17 witnesses: A. Richard Walje, RMP President and Chief Executive Officer (Ex. 2); Bruce N. Williams, RMP Vice President and Treasurer (Ex. 3); Samuel C. Hadaway, a principal in FINANCO, Inc., Financial Analysis Consultants (Ex. 4); Steven R. McDougal, RMP Director of Revenue Requirement (Ex. 5); Kelcey A. Brown, RMP Manager of Load Forecasting (Ex. 6); Gregory N. Duvall, RMP Director of Net Power Costs (Ex. 7); Cindy A. Crane, Vice President Inter-West Mining Company and Fuel Resources for PacifiCorp Energy (Ex. 8); Rick T. Link, Director of Commercial and Trading for PacifiCorp Energy (Ex. 9); Chad A. Teply, Vice President of Resource Development and Construction for PacifiCorp Energy (Ex. 10); Dana M. Ralston, RMP Vice President of Thermal Generation (Ex. 11); Mark R. Tallman, RMP Vice President of Renewable Resources (Ex. 12); Natalie L. Hocken, RMP Senior Vice President of Transmission and System Operations (Ex. 13); Douglas N. Bennion, RMP Vice President of Engineering Services and Asset Management (Ex. 14); Erich D. Wilson, RMP Director of Human Resources (Ex. 15); Douglas K. Stuver, RMP Senior Vice President and Chief Financial Officer (Ex. 16); Joelle R. Steward, RMP Director of Pricing, Cost of Service and Regulatory Operations (Ex. 17); and F. Robert Stewart, RMP Regulatory Consultant, Customer and Regulatory Liaison in the Customer Service Department. (Ex. 18).
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., Project, Prices
2014 BHE testimony on the gas turbine, coal and geothermal projects in Utah
The purpose of Chad Teply testimony was to support the prudence of capital investments in the new Lake Side 2 combined cycle combustion turbine (“CCCT”) natural gas fueled resource, certain pollution control equipment retrofits on existing coal fueled resources, and other significant generation plant projects being placed in service during the test period in this docket, July 1, 2014 through July 2015. This included the Hayden SCR and the Blundell geothermal resource well integration project and 1 the Naughton Unit 3 natural gas conversion project. The Blundell geothermal resource well integration project integrates two 108 new geothermal resource wells into the Blundell generation system. One production well and one injection well, along with associated appurtenances, have been drilled and will be placed in service to support continued reliable electricity production at the site. Lake Side 2 is nominally rated at 548 MW base load 130 and 97 MW of duct firing for a total net capacity of 645 MW at the average 131 ambient temperate of 52 degrees Fahrenheit. Each combustion turbine exhausts 132 into its own heat recovery steam generator which then commonly supply a single 133 steam turbine generator. The electrical energy generated by Lake Side 2 will be delivered to a new 345 kV point of interconnection substation (Steel Mill) where it will tie into the PacifiCorp transmission system.
Revision Date: 11/7/2016
Tags: 221116 - Geothermal Power , BHE Environmental, Inc., Duct Burner, Substation
PacifiCorp estimates of CCR compliance are challenged
HEAL questioned the PacifiCorp plans to meet CCR in September 2016. (See details in McIlvaine's Coal Fired Power Plant Decisions.) As of October 19, 2015, PacifiCorp had nine surface impoundments and four landfills that are subject to the CCR rule. PacifiCorp is currently in the process of closing four of the nine impoundments. *However, EPA recently vacated the provisions of its 2015 coal ash rule exempting early closure impoundments. Therefore, PacifiCorp’s four early closure impoundments will be subject to additional compliance obligations, including monitoring and possibly remediation requirements. In addition, Rocky Mountain Power has posted CCR Rule and Compliance Data and Information on its Webpage, as the EPA’s CCR rule requires. These documents outline the company’s plans with regard to the Dave Johnston, Hunter, Huntington, Jim Bridger, and Naughton power plants. While this information is helpful, HEAL says is incomplete for purposes of integrated resource planning.
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., CCR, Regulation
Naughton September 2016 Air Permit Application to modify H2S04 emission limit
Recent testing has demonstrated that the 0.004 lb/MMBtu emission rate is not achievable with the BACT equipment that has been installed. This permit application is to reevaluate the potential impacts of the SO3 injection system and permit an H2SO4 rate that will be achievable given the specific ambient conditions and coal characteristics that exist at the Naughton Power Plant. After evaluating the information submitted by PacifiCorp and reviewing the RBLC for similarly controlled units, the Division considers installation of alkali wet scrubbers on Units 1 and 2, meeting an emissions limit of 0.0055 lb/MMBtu, and meeting a SO3 injection limit of 4 ppmv, annual average of four (4) quarterly tests, to represent BACT for Units 1 and 2. Project emissions were estimated based on potential to emit. The new limit is in effect for PM based on MACT UUUUU requirements of 0.03 lb/MMBtu for filterable PM for EGUs, which went into effect April 16, 2015. The potential to emit for Unit 1 is based on the limit of 0.03 lb/MMBtu PM (filterable) + 0.007 lb/MMBtu PM (condensable) and the design firing rate of the unit. The potential to emit for Unit 2 is based on the limit of 0.03 lb/MMBtu PM (filterable) + 0.011 lb/MMBtu PM (condensable) and the design firing rate of the unit. Condensable is based on maximum historical condensable rate plus projected incremental increase from Hg control technology. For Unit 1, the maximum historical condensable PM emission rate was 0.0070 lb/MMBtu and the incremental condensable PM increase from the mercury control technology (calcium bromide injection – CaBr2) was projected at 0.00037 lb/MMBtu. This provides a total projected condensable PM emission rate of 0.00737 lb/MMBtu which was rounded to 0.007 lb/MMBtu in the September 22, 2015 application to permit the Unit 1 and Unit 2 H2SO4 emission limits at 0.0055 lb/MMBtu. For Unit 2, the maximum historical condensable PM emission rate was 0.0111 lb/MMbtu and the incremental condensable PM increase from the calcium bromide mercury control technology was also projected at 0.00037 lb/MMBtu. This provides a projected total condensable PM emission rate of 0.01147 lb/MMBtu which was rounded to 0.011 lb/MMBtu in the September 22, 2015 permit application. Note that the projected incremental CPM increase of 0.00037 lb/MMBtu from the CaBr2 mercury control technology was included in the December 11, 2013 application to permit the Naughton plant’s mercury control technology systems.
Revision Date: 11/7/2016
Tags: BHE Environmental, Inc., SO3 Conditioning, Calcium Bromide
Valve Market strategy focused on large purchasers such as BHE
This article in the December issue of Valve World by Mcilvaine advises suppliers of high performance valves to identify the largest purchasers and build the marketing program around them. An opportunity to work with BHE who spends $ 90 million/yr on valves is explained.
Revision Date: 11/7/2016
Tags: 221118 - Other Electric Power , 221118 - Other Electric Power , 221111 - Hydroelectric Power Generation 水力发电, 221114 - Wind Power , 221118 - Other Electric Power , BHE Environmental, Inc., Valve
MidAmerican Energy Company Energy Isolation Program
Mid American Energy Isolation program sets procedures for maintaining wind components including lubrication pumps. Tom Daft of Mid American presented the program focused on keeping wind turbines safe and reliable. There are procedures for the following • Main Tower AC Tower Breaker • 575 VAC to LVMD; Control Voltage • 50 kVa Transformer • Converter • Pitch Slip Ring • Gearbox Lubrication Pump • Gear Box Cooler Fan • Yaw Drive System • Hydraulic Brake Unit And 10 other systems…
Revision Date: 11/2/2016
Tags: BHE Environmental, Inc., Pump, Wind Turbine
Pacific Corp Naughton reduces pulverizer maintenance with new lubrication system
At the Naughton plant of Pacific Corp an advanced filtration technology for the coal pulverizer was determined to be readily available for heavy gear oil that would meet solve the maintenance problems. An off-line kidney loop filtration package using a high-efficiency, high-dirt-holding capacity, synthetic filter media was procured and installed. The package uses two filter housings mounted in series, with a common-sized element in both housings. The filter elements initially recommended for the trial installation were rated at Beta 25=200 in the first stage and Beta10=200 in the second stage. Oil flow was delivered by a vane pump rated at 10 gallons per minute for a 460 centistoke (cSt) (2,500 SUS) gear oil. Temperature ranges of the system fluid varied from a low of 65 degrees Fahrenheit (18 degrees Celsius) when idle, up to 130°F (54°C) during normal operation. The filtration package is installed with the suction line coming into the filter bank directly from the bottom of the reservoir; the outlet, or filtered discharge line, is piped directly into the top of the reservoir. The filter element condition is monitored by differential pressure gauges installed on each filter housing with a target of 25 to 28 psig as an indicator of element loading; the elements were changed out prior to allowing the internal bypass valve to begin opening. Other features of the filtration package include upstream and downstream sampling valves to allow gear oil samples to be taken without having to shut down the system.
Revision Date: 11/2/2016
Tags: PacifiCorp, Vanes, Pump, Cartridge, Pulverizer, Lubrication
North Valmy landfill closure will have final cover system
The North Valmy Generating Station’s landfill is subject to the closure requirements in the CCR Rule because the landfill is classified as an existing CCR landfill. The landfill is considered as an existing CCR landfill because it is an “area of land or excavation that receives CCR” and it received CCR both before and after October 19, 2015, the effective date of the CCR Rule The CCR unit will be closed in a manner that will • “Control, minimize or eliminate to the maximum extent feasible, post-closure infiltration of liquids into the waste and releases of CCR, leachate, or contaminated run-off to the ground or surface waters or to the atmosphere;” (§257.102(d)(1)(i)) – The final cover system will control infiltration of liquid into waste by meeting the permeability requirements listed in the CCR Rule and by providing a final cover surface that is graded to promote positive drainage. Meeting the permeability requirements in the CCR rule will limit the potential for water to infiltrate through the cover and into the underlying waste. Creating a final cover surface that promotes the flow of water will reduce the time available for water to infiltrate through the cover and into the underlying waste. – The final cover system will control the release of CCR by covering exposed CCR to limit contact with wind, water, and other agents of erosion. Armoring, compaction, and/or other erosion control measures may be provided in areas more susceptible to water or wind erosion. Drainage and sediment control structures may be installed to collect and/or detain eroded CCR. – By limiting the amount of water coming into contact with CCR, the measures for controlling infiltration of liquid into waste will also serve to limit the amount of water available to create leachate and the amount of leachate generated. Controlling and reducing the amount of leachate generation will in turn control the release of leachate. By limiting the amount of water coming…
Revision Date: 10/19/2016
Tags: Regulation, CCR
On April 17, 2015, the Environmental Protection Agency (EPA) issued the final version of the federal coal combustion residuals rule (CCR Rule) to regulate the disposal of CCR materials generated at coalfired units. The rule is being administered as part of the Resource Conservation and Recovery Act (RCRA, 42 U.S.C. §6901 et seq.), using the Subtitle D approach. MidAmerican Energy Company (MEC) is subject to the CCR Rule and as such has developed a Fugitive Dust Control Plan for all sites handling and disposing of CCR per 40 CFR 257.80. This report provides the Fugitive Dust Control Plan for the George Neal Station North (Neal North) located near Sergeant Bluff, Iowa. This Fugitive Dust Control Plan is in addition to, not in place of, any other applicable site permits, environmental standards, or work safety practices. Bottom ash and economizer ash is handled wet and sluiced to CCR impoundments onsite. Since the CCR is sluiced in a wet condition via pipeline to site impoundments, there are no potential fugitive dust sources in the handling of bottom/economizer ash both at the source of the CCR and at the discharge point in the impoundments. MEC is currently evaluating converting the system to dry handling; should dry handling be implemented for any of the units at Neal North, there will be an amendment to this plan to address dust controls for drying handling.
Revision Date: 10/19/2016
Tags: BHE Environmental, Inc., Flyash, Regulation
Jim Bridger will require new pond liner
The PacifiCorp Jim Bridger Power Plant is a coal-fueled steam-electric operation with four operating units having a total generating capacity of 2.12 GW, and is located approximately nine miles northeast of Point of Rocks, Wyoming. . FGD Pond 2 is a zero discharge facility and generally evaporates water at the same rate it is disposed of in this pond. It does not have a spillway, or outlet structure. The inlet structure consists of two, 10-inch diameter HDPE pipelines which can discharge at various points along the southern side of the pond. Seepage from the current FGD Pond 2 has created a groundwater plume beneath the general area of the disposal ponds (FGD Ponds 1 and 2). This plume is presently controlled by a series of groundwater pump back wells which discharge the pumped water back into FGD Pond 2. The FGD Pond 2 does not meet the requirements of §257.71 – Liner design criteria for existing CCR surface impoundments, due to absence of an installed geomembrane liner and compacted clay soil liner. The Rule states that existing CCR surface impoundments are considered unlined if “the owner or operator of the CCR unit fails to document whether the CCR unit was constructed with a liner that meets the requirements of paragraphs (a)(1)(i), (ii), or (iii).”
Revision Date: 10/19/2016
Tags: 221112 - Fossil Fuel 化石燃料, PacifiCorp, Pond Liner
Plans for SCR in 2014 PacifiCorp Integrated Resource Plan
A number of PacifiCorp plants need to install SCR. The 2014 plan lists specific timetables. Litigation has changed some of these plans in the interim and we need to determine the latest status but this has the information in one place and is a valuable reference.
Revision Date: 9/26/2016
Tags: PacifiCorp, SCR, Regulation
Energy Saving at PacifiCorp Washington Plants
PacifiCorp Energy has seven generation facilities in their fleet that provide electricity to the State of Washington. These units vary from coal‐fired to natural gas to wind. The State of Washington has recently passed legislation requiring PacifiCorp to complete all cost effective energy efficiency measures in these generation facilities. The purpose of this 2011 report was to outline the systems investigated and detail the cost effective measures.
Revision Date: 9/26/2016
Tags: PacifiCorp, Variable Speed Drive, Fan
Wyodak installs full flow condensate filtration
This coal fired power plant used air cooled condensers which cause problems with the condensate. In 2011 PacifiCorp purchased Pall 20 micron filters for the full flow. The question posed at the time was whether it would be worth more efficient filters e.g. 10 micron or 6 micron. 5 years have now passed since this presentation at the 2011 ACC users group . What is the current status and experience?
Revision Date: 9/22/2016
Tags: PacifiCorp, Pall Corporation, Flow Control Equipment, Cartridge, Filtration
Huntington plant sued by Sierra Club over wastewater
Claims of contamination of streams due to coal fired plant wastewater have been submitted as part of lawsuit in early 2016.
Revision Date: 9/21/2016
Tags: PacifiCorp, Wastewater
Energy Saving potential projects at PacifiCorp plants as of 2014
The following systems and equipment were generally found to hold a high potential for cost-effective energy savings improvements: • Compressed Air Controls and Dyer Upgrades/Controls – Huntington (~1,800MWh/yr), Hunter (~1,000MWh/yr) • Heat Trace Thermostatic Control – Huntington (~80MWh/yr), Naughton (~100MWh/yr), Dave Johnston (~120MWh/yr) • RO Water Treatment Systems – Naughton (~200MWh/yr), Dave Johnston (~190MWh/yr) . The following systems show potential but require further study: • ID Booster Fan – Huntington Unit 1 • Coal Conveyors – Huntington Plant • Condensate Pumps – Hunter Unit 3, Naughton, Lakeside, and Currant Creek Plants • Compressed Air System – Naughton Plant • PA Fans – Hunter Unit 3, Dave Johnston Plant • Boiler Water Feed Pumps – Dave Johnston Units 1 & 2 • Demineralization Water Pumps – Lakeside, Currant Creek Plants.
Revision Date: 9/21/2016
Tags: PacifiCorp, Pumps, Ultrafiltration, Microfiltration, Reverse Osmosis
Chemicals used at PacificCorp Wyoming plants
This document is a tax ruling but describes the chemicals used at 4 coal fired power plants in Wyoming operated by PacifiCorp. These include boiler and water/wastewater treatment chemicals. Basic information is provided but unfortunately there are no details on suppliers or quantities.
Revision Date: 9/21/2016
Tags: PacifiCorp, Chemical
H202 can improve SNCR but creates challenges
EPRI conducted a laboratory study in 2010 which showed that injection H202 into the boiler reduced NOx by up to 70% but also converted SO2 to SO3. Shiaw Tseng of Graymont says that NO2 can cause problems in magnesium enhanced lime systems. Mcilvaine speculates that ozone injected ahead of the scrubber would convert the NO2 to N205 and create calcium nitrate. Linde writes about successful creation of calcium nitrate as a byproduct.
Revision Date: 9/13/2016
Tags: SNCR, Hydrogen Peroxide, NOx
Solvay Sorbents for Flue Gas Treatment
Solvay has both Trona and sodium bicarbonate reagents to remove SO3 and SO2. High removal efficiencies of both pollutants are achieved with direct sorbent injection. Solvay has the infrastructure for delivery of any required quantity for a power plant.
Revision Date: 8/31/2016
Tags: Solvay, FGD, Trona, DeNOx, NOx, Sodium Bicarbonate, Scrubbing, DeNOx
Hamon fabric filters for PacifiCorp and the power industry
Hamon has many installations of their low pressure cleaned fabric filter in the power and other industries. They installed the filters for Hunter and Huntiington stations of PacifiCorp. To upgrade these filters to operate with catalytic filters or for DSI there are considerations relative to structural design and also bag cleaning.
Revision Date: 8/31/2016
Tags: Hamon, Fabric Filter, Fabric Filter, Scrubbing
PacifiCorp replaces string wound filters with Pall pleated media filter for ACC condensate
In 2011 the Wyodak plant of Pacific Corp replaced its air cooled condenser for a 365 MW coal fired boiler. It also upgraded to 20 micron filtration elements in a new full flow condensate filter. The higher efficiency filter has reduced iron deposition. More efficient 6 micron filter elements were also available but the additional cost seemed to outweigh the advantages.
Revision Date: 8/29/2016
Tags: 221118 - Other Electric Power , PacifiCorp, Pall Corporation, Cartridge Filter, Cooling
Substantial NOx reductions with Ovation combustion optimization at Midwest coal plant
Emerson and a Midwest Power plant benchmarked pre-project NOX, O2, and steam temperature levels and burner tilt performance. Two improvements were identified, the addition of separated OverFire air (SOFA)dampers & tilts and combustion optimization in the plant’s Ovation control system. The OverFire air process redistributes air within the boiler combustion zone and injects additional air above the combustion zone to complete the combustion process. Decreasing the air within the burner zone lowers stoichiometry, which lowers the flame temperature and reduces thermal NOX. This also reduces the tendency of fuel-bound nitrogen to oxidize to nitrous oxides. To compensate for temperature excursions caused by rapid changes in SOFA positions, advanced control strategies were developed. These control strategies were based on an advanced non-linear, fuzzy-neural NARMAX (FNM) algorithm. The team followed a multi-step process, which included a study of the current combustion process, DCS control improvements, parametric testing, model development, open-loop testing, closed-loop testing, and commissioning. For this project’s optimization model NOX and CO were the control variables. Manipulated variables included the OFA and SOFA dampers, SOFA tilts, O2 trim, auxiliary air dampers, window-to-furnace differential pressure, fuel air dampers, and feeders. The disturbance variables included load, ambient temperature, total air flow, and burner tilts demand. Over the multi-year process that included the combustion optimization, followed by the SOFA equipment, followed by the advanced control optimization of the SOFA equipment, the plant reduced annual NOX output from over 1400 tons to under 600 tons.
Revision Date: 8/11/2016
Tags: Emerson Electric, Optimization, NOx Emissions Reduction
Minnkota optimizes coal fired power plant to balance erratic wind generation
The ability to effectively utilize the maximum amount of the wind farm production, while preventing transmission voltage surges, was a concern for Minnkota Power Cooperative. Conversely, when the wind would slow, the conventional assets are required to respond to prevent voltage sags. Minnkota M.R.Young power station is the primary source of electric generation for more than 110,000 customers. For many years prior to the wind farm additions Young station was base-load operated to meet the generation needs of the area. The main factors requiring a revised operational mode for the plant generation are twofold. The market was being deregulated by the creation of the Midwest Independent System Operator (MISO) of the transmission grid. Also new wind farms were put into operation nearby, causing additional load demand regulation issues and voltage problems with the electrical transmission lines. The Emerson URO project required significant changes to the Young Station operations to allow Minnkota to capture available wind generated electricity by efficiently cycling the Young Station to meet constant changes in the wind generated output. The scope of the URO project was to create new fully coordinated closed loop control strategies via the following method: 1. Capture detailed unit operating data via parametric testing by cycling the units through various power ranges. 2. Using that data to develop dynamic models of the unit‟s operating characteristics at various load ranges. 3. Testing and verifying those models under actual operating conditions. 4. Modification of existing control settings and benchmarking the new strategy vs. the base strategy. The upgraded software has provided many benefits. The unit is now able to hit targeted set points accurately and with minimal megawatt overshoot, thereby contributing to reduced fuel costs. The unit is also able to ramp to the targeted set point much quicker, enabling revenue to be generated more quickly. Because the unit is able to follow load demand it is now possible for MPC to compete in the ancillary power services market. In addition, the use of optimization technology can also translate into less stress on critical equipment, further enhancing unit reliability and availability.
Revision Date: 8/9/2016
Tags: Emerson Electric, Optimization, Combustion
Tampa Electric installs Emerson Smart Process system to optimize NOx control with new SCR
TEC entered into a contract with Emerson Process Management Power and Water Solutions to provide an Emerson Smart process combustion optimization system on TEC Big Bend Unit #4TEC This optimization system was installed, configured, and tuned in 2007. It is an in-combustion NOx reduction process that reduces the generated NOx emissions and the cost of the SCR operation. The primary goal of this optimization system was to determine the optimal positions for various combustion parameters to achieve multiple emission goals which are defined and can be modified by the end-user. As part of this combustion optimization and SCR projects, a new CO analyzer was purchased and installed on Big Bend 4 by TEC to provide the optimization system with critical on-line feedback for status of the boiler combustion system.
Revision Date: 8/9/2016
Tags: Emerson Electric, Optimization, Combustion
Constellation energy optimizes SNCR process with Emerson program
The SNCR optimization project at Wagner Unit #2 was coupled with the new equipment, revised operational goals, and control system revisions required for the SNCR integration and automated operation. The SNCR optimization project at Wagner Unit #2 was found to significantly decrease the NOx removal from the injection of the reagent in the furnace coupled with a new type of adaptive optimization system that significantly reduced the overall NOx emissions. This new technology eliminates manual parametric testing, and this novel feature enables a faster deployment and operational readiness than previous technology like neural network based systems. The combustion optimization system with SNCR system ON was able to reduce the NOx emissions to an average value 0.298 lb/MMBTU compared to 0.332 lb/MMBTU with optimization system off-line.
Revision Date: 8/9/2016
Tags: Emerson Electric, Optimization, Combustion
Constellation energy reduces Nox at low cost with emerson optimization system
In 2003 Constallation Energy completed a project to optimize the performance of two units at its C.P. Crane station in Baltimore, Maryland utilizing advanced neural network technology. The C. P. Crane site has two (2) units, each with four (4) Babcock &Wilcox (B&W) cyclonic furnace burners in an opposed-wall firing configuration. The NOx optimization portion of the project has provided the utility with significant reduction in the NOx emissions with a relatively small capitol investment that was recovered in the first five months of the project. This has allowed financial gains from several different aspects including the shifting of required NOx credits to other units and lowering the units’ power production costs, which has increased competitiveness in the dispatching system.
Revision Date: 8/9/2016
Tags: Emerson Electric, Optimization, Combustion
FLSmidth has both ceramic and fiberglass catalytic bags
FLSmidth has catalytic ceramic elements operating at temperatures exceed 700F and catalytic fiberglass bags operating at temperatures exceed 400F. One cement plant has ordered the ceramic elements for a full scale applicaton. Another cement plant is now operating the catalytic fiberglass bags. High Nox removal efficiencies are being achieved at temperatures exceeding 350F. This presentation was recorded with extensive discussion of the applicability to Pacific Corp.
Revision Date: 8/4/2016
Tags: FLSmidth, Catalytic Filter
Wartsila power plants can operate with multi fuels
Wärtsilä’s power plants enable the transition to a sustainable, reliable and affordable power system. The main cornerstones are very high energy efficiency, outstanding operational flexibility, and multi-fuel operation. The applications range from stationary and floating base- load power plants to dynamic grid stability and peak load services, balancing large input fluctuations of wind and solar power, as well as serving a wide variety of industrial self-generation needs. This brochure outlines the capabilities and designs to handle gaseous and liquid fuels as well as multiple fuels. Multi-fuel power plants make power generation more reliable by being able to adapt to any situations that may occur regarding fuel availability or affordability. They can even switch fuels while running, for example changing to liq- uid fuel mode if the gas supply is suddenly interrupted. This capability provides 24/7 security of supply, hedge against fuel price increases and preparation for future fuel infrastructure development. Wärtsilä’s multi-fuel power plants can run in the following operations…
Revision Date: 8/1/2016
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, 483111 - Deep Sea Freight Transportation , 211111 - Crude Petroleum and Natural Gas Extraction 原油和天然气开采, 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, Wartsila, Silencer, Catalyst, Valve, Reciprocating Engine, Regulation, Cooling, Heat Recovery, Emissions Control
Burner modification to entrained flow gasifier to eliminate thermal NOx entering boiler
Coal is fired with very limited hot air in an entrained-flow gasifier In the initial combustion step, the carbon consumes all the oxygen and creates a hot, fuel-rich gas and frees the sulfur from the coal, Limestone (CaCO3) provides calcium as CaO Sulfur reacts with CaO to form calcium sulfide (CaS) - a solid particle at these temperatures, CaS destroys the NOx (NOx< 10 ppm) to form elemental nitrogen (N2) At the high temperatures, coal ash (alumina & silica) mix with the CaS and melts to form a slag product; the sulfur is thereby encapsulated in the slag About half the slag drains from the chamber to a water quench slag tank. Clean red-hot gases enter the furnace & cool to < 2300 F, where thermal NOx formation is frozen. Any slag particles solidify to a fine fly ash Staged over-fire air is then carefully added to complete combustion in the furnace to CO2 & H2O and to avoid any thermal NOx formation. The hot exhaust gases exit the furnace to the back pass at the original design conditions.
Revision Date: 8/1/2016
Tags: 221118 - Other Electric Power , NOx, Burner
FLS has two ranges of catalytic filters. One uses fiberglass media and is suitable for temperatures well beyond the mormal 325F seen at coal plants. The ceramic filter is capable of operating prior to the air pre heater or at temperatures of more than 850F. The one layer fiberglass bag can achieve around 40% NOx removal while the 3 layer bag can achieve 80%.
Revision Date: 8/1/2016
Tags: 221118 - Other Electric Power , FLSmidth, Catalytic Filter
Fuel Tech has large SNCR systems in China
Fuel Tech has units in Asia which are large e.g 4 x 680 MW and are achieving up to 78% NOx removal with a combination of SNCR and combustion modifications. These additional power points supplement the information provided by Dale Pfaf in sessions 1 & 2. AES Greenridge is 115 MW T -Fired and achieves 60% NOx reduction with combustion modifications, SNCR and ASCR
Revision Date: 8/1/2016
Tags: 221112 - Fossil Fuel 化石燃料, Fuel Tech, NOx, SNCR, Emissions Control, NOx Emissions Reduction, China
Opportunities for Data Analytics in Power Generation
Data science is defined as machine learning. One use is in Data Analytics which has four steps 1. Descriptive analytics ( what happened) 2. Diagnotic analytics (why did it happen) 3. Predictive Analytics ( when will it happen) 4. Prescriptive Analytics ( what should I do about it). Prognostics ( a combination of diagnostic and predictive analytics can be used to predict the time at which a system or a component will no longer perform its intended function . This is a challenge since most failures are random and not age relaed. It is important because of the cost of failure. Bearing Failures in Rotating Equipment cause $240B in downtime and repair costs. A combination of physics and data based models can be beneficially used for calculations of remaining useful life ( RUL) . The conclusions of the presentation are 1.Data analytics can help operators manage and improve reliability of generation assets. 2 Prognostics can be used to determine a RUL with a time element and confidence level. 3 Operators can use the RUL to actively manage maintenance schedule and operating conditions in order to maintain reliability. Data Analytics is a also applicable to efficiency ( fuel cost, capacity output) , emissions ( compliance and optimization ) , flexibility ( operational and economic).
Revision Date: 7/18/2016
Tags: XMPL Energy, Pumps, Software, Valves, Optimization, Emissions Reduction, Combustion Optimization, Gas Turbine Protection
Neuco is now part of GE and is collaborating on advanced artificial controls to improve profitability and reduce risk. More than 120 optimization systems are in operation. Boiler Opt® consists of CombustionOpt® which optimizes fuel and air mixing and SootOpt® which dynamically directs boiler cleaning. NOx reduction from 4 to 20% is being achieved with Boiler Opt at 7 U.S. power plant boilers of 500 MW or more. Combustion opt can achieve NOx reductions of 10-15% and boiler efficiency increase of 0.5%- 1.5% with reduced opacity, better LOI and CO control. SootOpt® reduces and controls APH temperatures, reduces blowing by 10-35% and provides incremental NOx reductions of 2.5% to 5%. Zones are selected and blowers operated based model prediction and operating history. Bell River Unit 2 reduced NOx from 0.25 lbs/ mm btu to 0.20 lbs/mm btu. APS four corners use has expanded to use on all five units. CPS Energy initially installed CombustionOpt on all existing plants at Spruce and Deely and then added SootOPt. NOx at Deely is reduced from 0. 138 lbs/mmbtu to 0.112 lbs/mm btu. Xcel added boilerOpt at Tolk and Harrington and has now standardized on the program with additional installations in Minnesota and Colorado. Harrington 2 Nox reduced from 0.16 to 0.13 lbs/mmbtu ( presentation by Peter Spinney)
Revision Date: 7/18/2016
Tags: GE, Optimization, Combustion
Doosan holistic in-furnace Nox control
Efficiencies of 80% can be achieved when reburn is added to SNCR and other combustion modification technologies. This article appearing in Power Engineering is more complete than the table and slides provided by Bin Xu in the July 19 webinar. SNCR removal efficiency is provided for a number of operating units. The table provides a good overview of the various combustion modification and SNCR combinations. Reburn offers slightly higher efficiencies than FGR in the various combinations.
Revision Date: 7/18/2016
Tags: PacifiCorp, Doosan, NOx, SNCR, Reburn
Gasified sewage sludge as a reburn fuel
Gasified sewage sludge has been evaluated as a reburn fuel to reduce NOx in Polish coal fired power plants. New regulations in Poland relative to sewage sludge disposal combined with the large number of Polish coal fired plants encourage consideration of alternatives such as the gasification and use of sewage sludge as a reburn fuel. This paper presented at a 2013 water conference shows results of laboratory tests showing up to 40 % Nox removal. However, there is no claim that this reburn fuel would be more efficient than natural gas. The paper also references the use of gasified municipal solid waste and other biomass. The paper references successful gas reburn in European coal fired boilers including the system at Longannet. Successful reburn examples in MSW and other combustion facilities are also noted.
Revision Date: 7/18/2016
Tags: PacifiCorp, NOx, Reburn
Fuel –lean gas reburn injects gas in specific locations for optimum Nox reduction results. Since FLGR does not require a physical change to the main combustion system, it requires a relatively low capital cost, typically less than $8/kW. FLGR is different from conventional gas reburning systems because gas is injected in a manner that optimizes the furnace’s stoichiometry on a very localized basis. The process avoids creating a fuel-rich zone and maintains overall fuel-lean conditions. Efficiency improvements of up to 30 % are possible.
Revision Date: 7/18/2016
Tags: PacifiCorp, Breen Energy Solutions, Natural Gas, NOx, Reburn
Alcoa Warrick using Doosan HF Controls for direct operator interface
Doosan HF Controls have been in operation for several years at Alcoa’s Indiana coal fired power plant. Warrick Unit 4 was partially upgraded years ago and in a 2014 the DOS-based Engineering Work Station was upgraded to a Windows 7-based system. The inter-controller communication equipment was upgraded to have the directly connected MODBUS link to a separate Honeywell system which was upgraded to a faster MODBUS-over-TCP/IP communication link while adding a new Windows 7-based Operator Work Station installed for direct input. Unit 2 was using SBC-02 controllers with Patch-Panel programming from around 1990 . These controllers were upgraded to the SBC-05 controllers, The Patch-Panel code currently was converted to modern Boolean form. The directly connected MODBUS link to a separate Honeywell system was upgraded to a faster MODBUS over TCP/IP communication link while adding a new Windows 7-based Operator Work Station installed for direct input.
Revision Date: 7/18/2016
Tags: 221112 - Fossil Fuel 化石燃料, Doosan, Alcoa, Control System
Yokogawa instrumentation for efficient combustion control
Use of gas measurement with TDL improves combustion efficiency and lowers emissions. Tunable Diode laser spectroscopy ( TDLS) using infra red ( IR) technology can measure a number of gases including oxygen. This presentation from a 2015 industrial conference in Europe shows an example where the Yokogawa TDLS was used to reduce excess air from 3.5% to less than 1 %. Yokogawa and its competitor Zolo are supplying TLDS analyzers. In Pacific Corp session 1 the Yokogawa analyzer was mentioned. So this paper is being added to the intelligence system with the expectation that more specifically applicable information will be forthcoming.
Revision Date: 7/15/2016
Tags: PacifiCorp, Yokogawa Corporation of America, Analyzer, NOx, Tunable Diode Laser Spectroscopy, TDL-IR
Holistic Nox Control from Fuel Tech
SNCR, combustion modifications and in dust SCR provide economic Nox Control. (1) Combustion Modifications Low Nox Burners and Over Fire Air for Wall Fired Units and Combustion Modifications and Separated Over Fire Air for T-Fired Units (2) Additional Modifications and Combustion Tuning to Reduce Nox Further ( 3) Selective Non-Catalytic Reduction of Nox (SNCR) with In-Furnace Injectiion (4) Advanced Selective Catalytic Reduction --- Single Layer of Catalyst --- In-Duct Arrangement with Proper Flow and Ash Distribution . Combining Multiple Technologies Requires Technical “Know-How” and Commercial Experience which Fuel Tech can demonstrate.
Revision Date: 7/15/2016
Tags: PacifiCorp, Fuel Tech, SNCR, NOx, Optimization
Combustion Optimization from Emerson
Measurement and control systems in the boiler can reduce Nox to as low as 0.1 lb/ mm btu. This presentation by Jeff Williams was made in the first Pacific Corp webinar. Jeff promised to show specific case histories in the second webinar. Advantages of SILO are 1. Knowledge gathering in on-line and off-line modes 2. Efficient adaptation mechanism inspired by operation of immune system 3. SILO II is able to adapt to different operating points and it is able to follow changes of the process characteristics. Thus the SILO performance is high in wide range of process operating points. 4 Extended run time of SILO system . The customer saves money on re-tuning the optimization software and has more flexibility in plant revisions. 5. No need for model creation process: 6. No identification experiments 7 No inefficient process operation. 8 No need to change the production schedule of the plant Feature : There are no off dispatch times needed for identification experiments.
Revision Date: 7/15/2016
Tags: PacifiCorp, Emerson Network Power, NOx, Optimization
Regional haze ruling for Pacific Corp
This July 5 2016 Federal register document partially approves and disapproves the original Utah plan. It rules that the BART alternative submitted in the Utah plan is not acceptable relative to NOx emissions at 4 units located at the Hunter and Huntington plants in Utah.
Revision Date: 7/15/2016
Tags: PacifiCorp, Yokogawa Corporation of America, TDL-IR, Tunable Diode Laser Spectroscopy, Analyzer, NOx
Using natural gas in coal fired boiler
Using gas to replace coal or to supplement coal or just for gas reburn can be economically attractive . In 2012 Riley Power Inc. (RPI part of Babcock Power) in conjunction with a major Southeast utility conducted a week-long program to test the boiler’s ability to fire full load natural gas in an existing RPI low NOx coal-fired burner. The goal was to determine the ability of the equipment to meet steam load requirements and emissions requirements. The result of this investigation is that the unit can achieve the original steam flow capacity and meet the current emissions regulations. However, substantial control changes will be necessary to ensure the unit can operate automatically on load control.
Revision Date: 7/15/2016
Tags: PacifiCorp, Babcock Power, Natural Gas, NOx, Low NOx Burner, Reburn
Valves for Ultrapure Water - Mcilvaine article in Valve World
Revision Date: 11/6/2015
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , 325412 - Pharmaceutical Preparation Manufacturing , 334413 - Semiconductor and Other Electronic Component Manufacturing , McIlvaine, GEMU Valves, KSB, KCI Technologies, High Performance Valve, Valve, Ultrapure Water, Water Treatment, Valve World
Venerable valve maker COOPER continues charting course for future
At 80 years old, COOPER is one of the pre-eminent names in valves with a long history of serving the downstream and mid-stream chemical, petrochemical, oil & gas, water and refining industries. Its leaders are passionate about building on that history and the future of the brand. They are focused on revitalizing COOPER through growth and expansion, which is evidenced in part by their acquisition of Accuseal in 2013. That acquisition enabled COOPER to reach new applications including mining and power. - See more at: http://www.thewholesaler.com/content/venerable-valve-maker-cooper-continues-charting-course-future#sthash.b2zit4My.dpuf
Revision Date: 9/2/2015
Tags: Accuseal, Cooper Valves, Ball Valve, Check Valve, Globe Control Valve, Gate Valve, Valve, Oil Refiners, Mining Markets, Power Generation
EGTEI methodology: update of costs for LCP- Draft minutes of third meeting of June 11, 2012
Objectives of the meeting The objectives of the meeting were to examine the state of progress of the work by the secretariat CITEPA and KIT, respectively for SO2 / PM (CITEPA) and NOx (KIT). A series of slides for discussion was prepared by the secretariat and discussed during the meeting in order to progress in the estimations (presentation pdf joined to these minutes). Main results of the discussions After some slides describing the main results of the meeting of 31 January, the success of the questionnaires send on April 5th, 2012 was discussed. The EGTEI secretariat has developed two questionnaires. One questionnaire in EXCEL format aims at collecting cost data for plants. A second questionnaire was developed to answer to comments of experts to the document prepared for the January meeting, presenting the methodology and assumption/parameters which have to be updated. This document is a word document summarizing the parameters used in the methodology and asking for comments and/or new data.
Revision Date: 8/6/2015
Tags: 221118 - Other Electric Power , Oxycombustor, SO2, NOx, SO3, Optimizing
Eliminating Feedwater Control Valve Damage with Multi-stage, Multi-path Flowserve Control Valves
The feedwater control valve (located downstream of the high-pressure feedwater heaters) performs the critical function of controlling the feedwater flow rate over a wide range of service conditions. During startup and shutdown, the feedwater control valve restricts flow by controlling near the closed position. The pressure drop across the valve is high, which can cause severe cavitation and noise. Over time, these severe service conditions will damage a control valve. Even a properly designed valve will not work well unless it is connected to a correctly sized actuator. An undersized actuator will cause unstable flow conditions while an oversized unit has a slow response to input signals. Flowserve has successfully addressed these issues with specially engineering multi-stage multi-path, or MSMP, designs. MSMP trim channels the flow through a series of orifices to reduce the pressure in stages. This prevents cavitation from occurring inside the valve. The velocity of the feedwater is kept low to prevent erosion of the valve body and to reduce noise and vibration. MSMP trim is customer-designed for the full range of service conditions. MSMP trim prevents cavitation when throttling near the seat but acts like a conventional control valve when controlling near the full-open position. As the pressure drop across the valve decreases, the cavitation also decreases and then stops. To maintain flow rate with decreasing pressure drop, the valve will open further and expose flow paths without orifices. The orifices are not needed at this flow condition because cavitation has stopped.
Revision Date: 8/3/2015
Tags: 221118 - Other Electric Power , 221118 - Other Electric Power , Flowserve, Valve, Actuator, Boiler Feedwater System, High Performance Valve, Cavitation, Noise, Vibration
Chinese standard for CEMS systems details technology requirements and procedures
HJ/T76-2007 is a standard that outlines technology requirements and test methods for Continuous Emission Monitoring Systems for stack exhaust gas from stationary sources
Revision Date: 8/3/2015
Tags: Continuous Emissions Monitor, Regulation, China
Sick supplies NDIR to measure SO3 and H2SO4
The Sick NDIR can measure SO3 In real time with accuracy withn 2% of wet methods. It has been used on a coal fired boiler in the U.S. since 2010
Revision Date: 6/11/2015
Tags: 221118 - Other Electric Power , Hydrodesulfurization Unit, SO3 Monitoring, Continuous Emissions Monitor
HVOF Coating Case Study for Power Plant Process Control Ball Valve Applications
This is a case study of the failure of the coating on an on-off metal-seated ball valve (MSBV) used in supercritical steam lines in a power plant. The valves are exposed to rapid high-pressure and -temperature variations resulting in cracking and cohesive failure of the high velocity oxygen fuel (HVOF) 80/20 Cr3C2-NiCr coating. It was found that carbide precipitation is a major factor causing embrittlement of the coating.
Revision Date: 6/8/2015
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, Velan, Valve, Thermal Stress, Journal of Thermal Spray Technology
Keeping Motion Control Systems Operating is Critical for CCGT
The challenge for power plants is keeping their critical motion control systems operating at the same high level as the original equipment in spite of 24/7 operations in rugged environments. Moog provides actuators and servo valves to most OEMs of gas and steam turbine equipment and works with the designers of new turbines to develop specifications. In addition, Moog provides Global Support repair and maintenance services and offers special services to help power plants minimize downtime and ensure optimized performance
Revision Date: 5/28/2015
Tags: 221112 - Fossil Fuel 化石燃料, Moog, Inc./ Ind'l. Controls Div., Valve, Actuator, Maintenance, Service & Repair, Motion Control
Eliminate Leakage by Drain, Vent, Block Valves
Select your valves carefully. Be sure metal seats are available when service temperatures are 400F and above, stems are blowout-proof, seat leakage meets the tightest specs after installation, coatings assure long life, and can be accessed internally, inline, for inspection and maintenance.
Revision Date: 5/28/2015
Tags: 221112 - Fossil Fuel 化石燃料, Valve, Leakage, Maintenance, Combined Cycle Journal
Converting from Hydraulic to All-Electric Gas Control Valves Benefits Frame 6 Owners
Young & Franklin valves have been in use on Frame 6 gas turbines for a decade. One advantage of an all-electric control valve is that it eliminates varnish issues by eliminating the control oil required by hydraulic actuators. Plus, electric valves are more responsive than hydraulically operated valves, have greater range, are easier to maintain, and enhance plant safety.
Revision Date: 5/28/2015
Tags: 221112 - Fossil Fuel 化石燃料, Young & Franklin, Valve, Fuel System, Combined Cycle Journal
Water-Cooled Check Valves Boost Reliability of 7FA Liquid Fuel System
Owners/operators of dual-fuel gas turbines often experience coking problems with standard liquid-fuel check valves. After switching from oil to gas, the oil remaining in check valves, which are located close to the combustors, is exposed to high temperature. Water-cooled check valves for the liquid-fuel circuit can help to alleviate the problem.
Revision Date: 5/28/2015
Tags: 221112 - Fossil Fuel 化石燃料, Jasc-Controls, Valve, Fuel System, Dual-fuel, Coking, Combined Cycle Journal
Inspect Steam Valves for Stellite Delamination
Stellite liberation from large valves installed in high-pressure (HP) and hot reheat (HRH) steam systems serving F-class combined cycles has emerged as an important industry concern. EPRI has established a committee on “Cracking and Disbonding of Hardfacing Alloys in Combined-Cycle Plant Valves” to dig into the details. The work, funded by several sponsors, began early this year. John Shingledecker (jshingledecker@epri.com), the technical manager for this program, said the project timeline is estimated at 14 months.
Revision Date: 5/21/2015
Tags: EPRI, Structural Integrity Associates, Valve, Maintenance, Delamination, Combined Cycle Journal
Tyco valves for FGD – 2012 power engineering article
The primary considerations in slurry valve selection are reliability in function and design, abrasion resistance, and ease of maintenance. In addition, valves with a straight-through, unobstructed flow minimize the effect of abrasion and therefore reduce the need for maintenance. Different valve types can have significantly different effects on flue gas desulfurizer (FGD) scrubber reliability. Mechanical equipment within the plant is used continuously and requires periodic service. The right isolation valve can facilitate maintenance of the system’s major components without the need to shut down the plant and can avoid disruptive leakages, which can cause significant damage. For example, if leaked slurry collects downstream in the pump casings, it can cause the impeller to freeze and prevent it from turning when the pump is started. The resulting high start-up torque can then damage or break the pump shaft.
Revision Date: 5/12/2015
Tags: Pentair, Valve, FGD, Wet Limestone
Riley rod deck absorber at Cilco Duck Creek
A scrubber using multiple rod decks for SO2 absorption was installed at Duck Creek. This 1977 paper presents the data on performance just after start up of 1 of the 4 300,000 cfm modules. Riley is now Babcock Power.
Revision Date: 5/11/2015
Tags: 221112 - Fossil Fuel 化石燃料, Babcock Power, FGD, Wet Limestone, Adsorber, SO2
Tekran Perspectives on NESHAPS Docket Relative Accuracy Test Audits (RATA) results submitted to EPA.
Less restrictive mercury RATA tolerance proposed.
Revision Date: 4/16/2015
Tags: Tekran Instruments, MATS, Mercury, Testing, Regulation
MKS recommends best HCl monitoring practice
MKS recommends best practice to meet EPA draft rule 18
Revision Date: 3/31/2015
Tags: 221118 - Other Electric Power , MKS Instruments, HCl, Monitoring
95% SO2 removal with DSI, SDA combination
The EUEC paper by Gerald Hunt of Lhoist demonstrates that with SORBOCAL, a high surface lime hydrate it is possible to achieve 95% SO2 removal with a combination of SDA, Cyclone, DSI , and fabric filter. DSI can be used in varying quantities and locations to achieve the needed SO2 removal to meet MATS and MACT
Revision Date: 3/18/2015
Tags: 221118 - Other Electric Power , McIlvaine, Lime, Dry Sorbent Injection
Successful mercury reduction in pilot study at Seminole (Golder presentation at EUEC)
Summary: Pilot testing successfully reduced effluent Mercury concentrations to < 225 ng/l. Pilot influent concentrations were lower than historical maximums. Pilot test process reduced effluent Mercury to < 40 ng/l after flocculation and settling unit operations were improved. Results obtained in October 2014 (higher effluent Mercury) need further review (ratio of organosulfide:ferric iron may be a key). Substantial colloidal fraction of Mercury was present. Effective chemical addition, flocculation and settling are necessary so that sand filters (current Seminole polishing process) can be utilized. Tighter membrane filtration might be needed.
Revision Date: 2/25/2015
Tags: Golder Associates, Sulfide, Wastewater, Mercury, Mercury Removal
ABB demonstrated the advantages of ICOS for HCl measurement at EUED
Summary Proved accurate and reliable measurement at 1ppm HCl Demonstrated compatibility with 100:1 dilution system Optimizing response time of system using glass coated or chemically treated materials makes sense, but… …unless analyzer is installed close to sample probe, injecting dry test gas into the system on daily basis makes little sense Shown that 95% step change in under 15 min. can very likely be achieved using vaporized liquid standards (i.e. HovaCal) Illustrated importance of H2O to validate HCl measurement Speed and accuracy of ABB Off-Axis ICOS analyzer is extraordinary considering no field calibration was performed
Revision Date: 2/25/2015
Tags: 221118 - Other Electric Power , ABB, Analyzer, Continuous Emissions Monitor, Hydrogen Chloride
B&W Mitagent improves halogen use to oxidize mercury (EUEC 2015)
Summary: *Mitagent reduces injection cost for Iodine by 30‐50% while providing same 90+% Hg oxidation levels * Mitagent further improves Hg oxidation by 20‐30% for low Bromine application rates (25 ppm or less) * Mitagent reduces application rates by 30‐50% for high Bromine addition rates (>100 ppm), and therefore associated corrosion risks * Mitagent use results in significant operating cost reduction by reducing halogen usage * On going long‐term testing indicates no negative effect on boiler or AQCS performance
Revision Date: 2/25/2015
Tags: 221118 - Other Electric Power , Babcock & Wilcox, Bromide, Halogen, Mercury, Chemicals, Mercury Removal
ClearChem Plus, Durr Ceramic Filter and Heat Exchanger Are the One Stop Shopping Option
For new units (& some existing plants), the combination of ClearChemFSI’s furnace sorbent injection (FSI) and Dürr’s catalytic ceramic filtration (CCF) ensures sufficient acid gas removal, allowing: *Use of condensing heat exchangers (CHX) *Lowering of flue gas exit temperature from ~300+oF to ~140oF *Increase the overall plant efficiency (as a rule of thumb every 40oF lower flue gas temperature equals to 1% efficiency gain) *Maximizes flexibility for profitably meeting retrofit and new plant APC requirements *Most existing unit retrofits can use just ClearChemFSI & Dürr CHX for efficiency gain and avoids NSR *Provides attractive, simple payback terms *ClearChem/Dürr dry ash has no sodium, preserves ash sales & eliminates ash ponds
Revision Date: 2/23/2015
Tags: 221112 - Fossil Fuel 化石燃料, 221112 - Fossil Fuel 化石燃料, ClearChem Development LLC, Direct Sorbent Injection, Ceramic Filter, Heat Exchanger, Emissions Control
B&W says Inorganic Sulfide is the most Cost effective Re-emission Route
The patented approach to preventing re-emissions by B&W uses inorganic sulfides because it is realtively low cost, efficient, and safe to handle. It is widely available.
Revision Date: 2/20/2015
Tags: B&W Services, Inc., Mercury, Chemical, Sulfide, Re-Emission
Clear Chem plus Durr Ceramic Filter and Heat Exchanger are the One Stop Shopping Option
How to make pollution control profitable.
Revision Date: 2/20/2015
Tags: 221112 - Fossil Fuel 化石燃料, Clear Chem Development LLC, Ceramic Filter, Heat Exchanger, Injection Equipment, Direct Sorbent Injection
Dry FGD By-Product Characteristics and Utilization - Fujian Longking
No one area of the world has a monopoly on dry scrubber knowledge. The reality is that China, with hundreds of dry scrubber installations, has accumulated knowledge which puts it on equal footing with the U.S., European, and Japanese companies which originally brought the dry scrubbing technology to China.
Revision Date: 10/23/2014
Tags: 221112 - Fossil Fuel 化石燃料, Longking, Dry FGD, Circulating Dry Scrubber, Byproduct
More than 100 MATS Extensions The NACAA table contains information from 58 agencies in 45 states, DC and Puerto Rico. According to the responses, 107 facilities have made extension requests, of which 98 have been granted, five are under consideration, two were returned to the facilities for additional information and two have been denied, to date. The respondents indicated that approximately six more requests may be forthcoming. According to EPA’s Regulatory Impact Analysis, there are 460 coal-fired power plants that are affected by the MATS rule. The details by State are shown at MATS EXTENSION SURVEY MAY 2014.
Revision Date: 9/5/2014
Tags: 221112 - Fossil Fuel 化石燃料, MATS, Regulation
The reducing environment produced by oxygen scavengers initiates and propagates flow-accelerated corrosion (FAC) in the feedwater system and other components of high-pressure steam generators, including heat recovery steam generators (HRSGs). Since 1986, FAC-induced attack has caused numerous failures, some with fatalities, at a number of power plants in the U.S. Yet, specifications for many new power plants both domestically and globally, and in which the condensate/feedwater system contains no copper alloys, continue to call for oxygen scavenger feed to the condensate. This document is a response to this misguided trend.
Revision Date: 8/25/2014
Tags: 221112 - Fossil Fuel 化石燃料, Kiewit, Boiler Feedwater System, Heat Recovery Steam Generator, Ultrapure Water, Corrosion, Demineralization, Boiler Feedwater Treatment, Degasification
The replacement pulse jet cleaning system was designed by Pentair and incorporated unique features which solved the deposition problems in the existing ceramic filter used in this alumina processing plant.
Revision Date: 8/25/2014
Tags: 212299 - All Other Metal Ore Mining , Pentair, Ceramic Filter, Valve, Fabric Filter
New Technologies to Improve the Performance and Reliability of Older FGD Systems
This paper will describe and discuss the development and application of new technologies in upgrading older FGD systems.
Revision Date: 8/18/2014
Tags: URS Corp., Scrubber, Nozzle, FGD
Longking Designs Multi-Unit Dry FGD towers at Sangang Plant
The Sanming Steel and Iron Mill, which has been open since 1958, commissioned the first ever multi-unit tower in 2008. The multi-unit tower lowered both initial investment and operating costs for the dry sintering project. The project is 95% efficient at removing SO2 and handles 1.26 million cubic meters of Flue Gas an hour. 三钢集团180m2+200m2烧结机干法脱硫工程（两机一塔） 机组容量：180m2 + 200m2 系统流程：LJS干法脱硫→布袋除尘器→脱硫风机→烟囱 处理烟气量：1,260,000 m3/h 脱硫效率：95% 出口粉尘浓度：50mg/Nm3 投运时间：2008年11月
Revision Date: 8/7/2014
Tags: 221112 - Fossil Fuel 化石燃料, Sangang, Longking, Dry FGD, Desulfurization, China
Longking Dry Scrubbing at Baosteel Plant
Commissioned in July of 2009, the desulfurization project at Baosteel’s Electrical Power Plant handles 2.4 million cubic meters of Flue Gas an hour and removes 95% of the SO2 content. 宝钢集团梅钢公司400m2烧结机干法脱硫工程 机组容量：400m2 系统流程：LJS干法脱硫→布袋除尘器→脱硫风机→烟囱 处理烟气量：2,400,000 m3/h 脱硫效率：95% 出口粉尘浓度：20mg/Nm3 投运时间：2009年7月
Revision Date: 8/1/2014
Tags: 221112 - Fossil Fuel 化石燃料, Baosteel, Longking, Dry FGD, Desulfurization
Huaneng Shanxi Yushe Power Plant 2 × 300MW dry desulphurization project (华能山西榆社电厂2×300MW干法脱硫除尘工程)
Two 300MW Dry Scrubbers made by Longking were commissioned for use in 2004 at the Shanxi Yushe Power Plant operated by China Huaneng. Each scrubber handles a little under 2 million m3 of Flue Gas an hour, and takes out 93% of the SO2 content. 华能山西榆社电厂2×300MW干法脱硫除尘工程 机组容量：2×300MW 系统流程：ESP1→LJD干法脱硫→ESP2→引风机→烟囱 处理烟气量：2×1,772,000 m3/h 脱硫效率：93% 出口粉尘浓度：50mg/Nm3 投运时间：2004年10月
Revision Date: 7/31/2014
Tags: 221112 - Fossil Fuel 化石燃料, Longking, China Huaneng Corporation, Dry FGD, Desulfurization, China
Longking Installation at Hanfeng Power Plant 龙净环保的设备在邯峰电厂
Attached is the diagram for Longking's Flue Gas Circulating Fluidized Bed Desulfurization system (烟气干法脱硫及多组分污染物协同净化系统) that is installed at China Huaneng's Hanfeng Power Plant. The system boasts removal of at least 95% of the SO2 content and is both space and cost efficient. 该系统拥有去除至少95％的SO 2含量，是空间和成本效率。
Revision Date: 7/30/2014
Tags: 221112 - Fossil Fuel 化石燃料, China Huaneng Corporation, Longking, Dry FGD, Desulfurization, China
Chinese FGD / SCR Market Shares
In order to better serve the power industry and environmental protection industry, China electricity council (hereinafter referred to as CEC) has continuously carried out the registration for the environmental protection industry for coal-fired power plants for eight years. Registration always adheres to an open, fair, just and corporate voluntary principle. Regarding published information flue gas denitrification franchise and denitration catalyst capacity, etc. were newly increased in 2012. The relevant information is as follows…
Revision Date: 7/25/2014
Tags: McIlvaine, SCR, FGD, Market Share, China
Mill Creek FGD Performance Upgrade Study
Assess the feasibility of upgrading the Mill Creek Units 1 & 2 FGD’s and upgrading the existing Mill Creek 4 FGD and utilizing it for Mill Creek Unit 3
Revision Date: 7/23/2014
Tags: Babcock Power, Scrubber, FGD, Upgrade
Recent Operating Results of the Five New Wet FGD Installations for Ameren
Hitachi Power Systems America, Ltd. has recently completed the Start-Up, Performance Testing and several months of operation on the five (5) Wet Limestone Forced Oxidation Scrubbers (WFGD) installed in Missouri and Illinois for Ameren. Ameren Corporation is the parent of utility companies that serve 2.4 million electric customers and 1 million natural gas customers in a 64,000 square-mile area of Missouri and Illinois. This paper will discuss the project backgrounds along with the design and operating performance of the advanced SO2 reduction technology that was implemented on these five units.
Revision Date: 7/23/2014
Tags: Ameren Services, Hitachi Power Systems America, Scrubber, FGD, Pollution Control
An aggressive form of corrosion has been found in relatively new flue gas desulfurization systems installed in U.S. coal-fired plants. In response, EPRI has launched a rapid-response project to investigate the root cause of the corrosion and to develop inspection and mitigation methods.
Revision Date: 7/23/2014
Tags: EPRI, FGD, Alloy, Corrosion
Corrosion in alloy wet scrubber
B&W analyzed alloy failure in in the reaction tank of 2 absorbers and concluded the cause was fluoride under deposit attack on the 2205 walls.
Revision Date: 7/23/2014
Tags: Babcock & Wilcox, Scrubber, FGD, Alloy, Corrosion
The Latest Developments in Air Pollution Technology----Mercury Issues 大气污染控制技术最新进展----汞污染控制
SO2 Removal Issues （脱硫问题） Problems with mercury in the gypsum could lead to further use of the natural oxidation lime systems with conversion of the sludge to a fixed product for landfill or use. 汞的石膏可能影响自然氧化石灰系统，该系统产生的污泥难以转化 为固体物用于填埋或者做其它用途。 There is now a commercial opportunity to use high purity gypsum to replace precipitated calcium carbonate for coating of magazine paper. 现在有一个商业机会。利用高品位的脱硫石膏来代替碳酸钙沉淀物，用于 制作杂志石膏用纸。 家工信部【2011】73号文件（2011.02.21发布）《关于工业副产石膏综 合利用的指导意见》，明确提出，到2015年，磷石膏的综合利用率由2009年的 20％提高到40％，脱硫石膏综合利用率由2009年的56％提高到80％。 SO2 Removal Issues （脱硫问题） There will be increasing opportunities to supply acid gas byproducts including ammonium sulfate, dilute sulfuric acid, and hydrochloric acid. 烟气脱硫行业将会有越来越多的机会，提供包括硫酸铵，稀 释硫酸，盐酸等酸性气体副产品。
Revision Date: 7/23/2014
Tags: McIlvaine, Mercury, Air Pollution Control, SO2, China
Pure Polyurea / Coating of Choice for China's Power Industry
This article explains the advantages of Polyurea for FGd coatings
Revision Date: 7/21/2014
Tags: Nukote, Coating, Lining, Corrosion, Cost, China
China is limiting new boiler SO2 to 100 ppm and existing to 200 ppm
China is the largest operator of FGD systems. New regulations tighten the emission limits and will force upgrades at existing plants.
Revision Date: 7/21/2014
Tags: FGD, Regulation, China
In China gas to gas heat exchangers have been employed. They have caused corrosion problems which are avoided by eliminating the GGH as at Jiahua Power Plant.
Revision Date: 7/21/2014
Tags: FGD, Corrosion, China
FGD Coatings Analysis in Chinese
FGD Coatings Analysis in Chinese
Revision Date: 7/21/2014
Tags: FGD, Coating, Regulation, China
FGD Coating Diagram / 1000 MW Plant
This diagram shows the location and cost of coating for major FGD sub systems in a a 1000 MW Chinese power plant. The estimates were prepared by Mcilvaine
Revision Date: 7/21/2014
Tags: Coating, Lining, Corrosion, Cost, China
Coatings for FGD in China and Elsewhere
This compilation includes details on offerings by Ashland, Ceilcote, Dalian, Duromar Hadek, Hempel, ITW, and others. It also covers case histories of coating experience in both the U.S. and China. It provides summaries of McIlvaine hot topic discussions of materials and corrosion. There are also abstracts of papers in Chinese.
Revision Date: 7/21/2014
Tags: Lining, Stainless Steel, Coating, China
Comparative Study on Several Anti-Corrosion Materials for Power FGD System (几种防腐材料用于电力烟气脱硫系统的比较研究)
In the study organic-inorganic hybrid composite, epoxy modified silicone coating and vinyl ester flake mas-tic were comparatively used as several anti-corrosion materials that provided protection for flue gas desulfu-rization (FGD). The relationship between curing conversion rate of hybrid polymer and temperature was in-vestigated by differential scanning calorimeter (DSC). The adhesion strength, coefficient of thermal expan-sion and flame retardant properties of three anti-corrosion materials were measured and analyzed. A corro-sion test in 8% H2SO4 and 5% HCl at temperature cycle of 40˚C ~ 160˚C was applied to study corrosion re-sistance of several anti-corrosion materials. Gravimetric measurement and morphological observation of three materials before and after corrosion test were comparatively analyzed in the paper. The small weight change and good morphological structure of hybrid composite during corrosion test demonstrate that hybrid composite has better anti-corrosion properties than epoxy modified silicone coating and vinyl ester flake mastic.
Revision Date: 7/21/2014
Tags: Coating, Lining, Corrosion, Corrosion
ITW Futura Coatings and Linings for FGD
Description of Futura Coatings - Direct to end user coatings and linings for highly corrosive and / or abrasive environments
Revision Date: 7/21/2014
Tags: ITW Futura Coatings, Coating, Lining, Corrosion, Cost
FGD Coatings Supplier Analysis in Chinese烟囱防腐材料公司
Experience of a Chinese coatings manufactuer. The article is in Chinese.
Revision Date: 7/21/2014
Tags: Lining, Coating, Corrosion, Cost, China
FGD Flake Glass Linings a Proven Success Story
The Bailly station has been using flake glass linings for its FGD system since 1992. There has been minimal maintenance.
Revision Date: 7/21/2014
Tags: ITW Futura Coatings, Coating, Lining, Corrosion, Cost
Overview of CCR Regulations and Changes in Disposal Management
Meeting the CCR regulations will require careful planning. It is much more than just pond closures.
Revision Date: 6/20/2014
Tags: 221112 - Fossil Fuel 化石燃料, URS Corp., Consulting, Regulation, Ash Handling, Wastewater Treatment
GSE Helps Launch of a New Arizona Power Plant
GSE GundSeal GCL was installed as the secondary composite liner system for six cooling and process ponds at the Springville Power Plant in Northeast Arizona.
Revision Date: 6/20/2014
Tags: 221112 - Fossil Fuel 化石燃料, GSE Environmental, Lining
TRC Provides on Site Mercury Testing
TRC conducts stack testing for power plants and other sources. One of the skills is Speciated Mercury Sampling including Speciated Sorbent Traps & the Ontario Hydro Method (ASTM D-6784)
Revision Date: 5/12/2014
Tags: 221112 - Fossil Fuel 化石燃料, TRC Environmental Corp, Contaminant, Mercury, Product Testing
Lhoist Has Lots of Ceramic Filter Hot Gas Experience
Lhoist was a presenter in the Mcilvaine hot topic hour May 1, 2014 on hot gas filtration . the highly porous lime sorbent is achieving more than 95% SO2/HCl removal efficiency when used at th 850F temperature preceding the ceramic filter. Product: lime, dry sorbent injection
Revision Date: 5/5/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Lhoist, Dry Sorbent Injection, Fabric Filter, Ceramic Filter, Lime
In 2010, Unifrax acquired Brightcross Insulation Ltd and with the acquisition came the previous sales history and knowledge of 15 years of manufacturing successful Hot Gas Filters.
Revision Date: 4/30/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Unifrax, Fabric Filter, Ceramic Filter
Pyrotex® KE The Candle Element for Hot Gas Filtration
Pyrotex® KE candle elements can withstand high temperatures up to 850°C and ensure efficient dedusting of your dust collector. They are 100 % spark-repellant and nonflammable - at peak temperatures of 1000°C.
Revision Date: 4/30/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , BWF Envirotec USA, Ceramic Filter, Fabric Filter
Measurement Differences between CEMS and Sorbent Traps
This study examined some of the factors that could contribute to differences between Method 30B Hg measurements and those that result from Hg CEMS.12 The following conclusions can be drawn: • When Hg is not controlled, the contribution of HgP is generally not enough to result in a significant difference between Method 30B and electronic Hg CEMS. • ACI and Br addition for Hg control will increase HgP. When Hg is controlled to MATS control levels, HgP that makes it past the PM control device may be sufficient to cause Method 30B to overestimate the gaseous Hg emissions by a significant degree, but typically not enough to impact whether or not a RATA is passed. • At sufficiently high Br levels, there is a potential for Br to contribute to differences between Method 30B and Hg CEMS that are not explained by HgP alone. One possible mechanism is the reaction of Br on the probe filter (or other surface) with gaseous Hg. This will be exacerbated if the probe or filter surfaces are reactive (ie., not adequately coated), if the filter condition has deteriorated or if material with reactive surface has accumulated on the filter. Others have also suggested that interference with the sample conversion system may contribute to this difference. For most Br addition rates expected under practical conditions, this potential effect is not expected to be significant. • The use of brominated activated carbon will impact the difference between Hg CEMS and sorbent traps due to formation of HgP as a direct and intended result of controlling Hg. The increased HgP that makes it past the PM control device will contribute to a difference between Hg CEMS and Method 30B. On the other hand, Br released from brominated activated carbon does not appear to impact gaseous mercury measurements to any significant degree. • This paper explored some key factors that might impact the difference between Hg CEMS
Revision Date: 4/30/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Andover Technology Partners, Sorbent Trap, Mercury Monitor, Continuous Emissions Monitor
3M Has Flexible Glass Media with Ceramic Coating for Bag Filters
This media is good for 700 F continuously and with excursions to 800 F. this means it is in the temperature range to operate ahead of an SCR. T he media has been around for a long while but is not widely used. We need to find out why.
Revision Date: 4/30/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , 3M, Ceramic Filter, Fabric Filter, Fiberglass Filter
Metallic Filter Elements - Bekaert
CachedSimilar Filtration of exhaust gases. • Processes where cleaning-in- place (CIP) is applied. Examples of backpulse surface filtration applications. Hot gas filtration on the.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Bekaert, Metal Filter, Fabric Filter
Nederman Offers Fiberglass Based Hot Gas Filter
The new patented MikroTemp™ high temperature filter element was in the spotlight at Menardi-Criswell, a division of Nederman. Designed for baghouse application in gas stream processes from ambient temperatures up to continuous operation at 850°F, the MikroTemp filter element is an alternative to woven metal filter bags and ceramic candles.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Menardi, Nederman, Fabric Filter, Fiberglass Filter
Ceramic Filter Recovers Metal Dust
At its plant in Wales, Mountstar recovers metallic granules from scrap in a furnace operation. In 1991 The Environmental Protection Act required cleaner exhaust gas emissions from the 40-year-old plant. KC Cottrell undertook designing a gas cleaning system for the facility which offered a few challenges.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , KC Cottrell, Ceramic Filter, Fabric Filter
Varied Duties for Bekaert's Metallic Elements
Bekaert's Bekiflow®HG elements made of Bekipor® media (sin¬tered metal fi¬bers) are applied in a variety of high temperature applications.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Bekaert, Fabric Filter, Metal Filter
Porous metal fibre filter elements & systems for industrial ... Bekaert
Cached Similar of solids from various applications gas streams. Bekiflow® HG - High …. Hot gas filtration - on the production of Magnesium Oxide. Key figures. • Flow: 36 000 …
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Bekaert, Metal Filter, Fabric Filter
Purolator EFP offers a range of gas filtration systems, based on the unique advantages of Porofelt® sintered porous metal fiber filter elements. Our filter systems are used in high temperature and/or corrosive chemical and petrochemical processes, for gas/solid filtration of process and waste gases. Porofelt® elements offer an alternative for existing filtration systems, such as ceramic based systems in situations where a lower pressure drop, easy cleaning, high mechanical stability and chemical & heat resistance are required.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Metal Filter, Fabric Filter
Nederman Offers Both Glass Fiber and Ceramic Media Filters
The glass fiber media is less expensive than the ceramic and can filter at the temperatures needed ahead of the SCR. So we need to look at this more closely.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Nederman, 3M, Fiberglass Filter, Filter Media, Fabric Filter, Ceramic Filter
Mott Promotes Fiber Metal Technology ( FF 2005)
Using fiber metal filtration media, Mott systems have the ability to remove particulates from hot gas streams in extreme conditions.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Mott Corporation, Metal Filter, Fabric Filter
Ventilex Solves Chemical Process Problem
Tessenderlo Chemie, a world leader in the field of inorganic chemicals, had to struggle to get below emission limits for hot, humid and dusty off-gases from a reactor in its Rotterdam plant. Process off-gases (35,000 N/m3/h at 120° C) were dedusted by a cyclone and cleaned with a wet scrubber. Rinse water from the scrubber, which contained high solids loading, was discharged into the river Maas, resulting in an environmental problem.
Revision Date: 4/29/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Ventilex BV, Fabric Filter, Metal Filter
Industrial Catalytic Engineering Ltd., (ICE) offers low density ceramic filters for hot gas filtration, which have been tested in a variety of applications including incineration, furnace and rotary kilns, soil remediation, product recycling (catalyst process) and small and large-diesel engines.
Revision Date: 4/28/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Industrial Catalytic Engineering, Ceramic Filter, Fabric Filter
Caldo Has Over Fifty Successful Installations
Caldo is a leading U.K. supplier of hot gas filtration equipment with over 50 successful installations and more than 10 years experience. Caldo hot gas filters use ceramic filter elements in modular, purpose-built vessels to meet a wide range of process specifications.
Revision Date: 4/28/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Caldo, Fabric Filter, Ceramic Filter
3M Aims Oxide Composite at Hot Gas
The 3M™ Oxide Composite Filter is a rigid, candle-type filter consisting of Nextel™ 610 ceramic fibers which reinforce an aluminosilicate matrix. The ceramic fibres toughen the composite construction and result in a filter with excellent resistance to thermal shock and catastrophic failure.
Revision Date: 4/28/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , 3M, Fabric Filter, Ceramic Filter
Cerafil/Dry Scrubbing Applied to Incinerators
An emerging technology for cleaning waste incineration off-gases is a filter plant based on low-density ceramic filter elements. Initially launched in 1991 Cerafil elements are high porosity, monolithic ceramic tubes that are closed at one end and have an integral T-flange at the other.
Revision Date: 4/28/2014
Tags: 562213 - Solid Waste Combustors and Incinerators , Filtration Group, Ceramic Filter, Fabric Filter
General research on catalytic filters in S.Korea
HCN Catalyst Impregnated Ceramic Filter Treats NOx Particulate and Acid Gases
Revision Date: 4/24/2014
Tags: Catalytic Filter, Fabric Filter, Ceramic Filter, South Korea
Ames Lab Tests Superalloy for Filtration
A thin metal filter material developed at Ames Metallurgy and Ceramics Laboratory would overcome the final barrier to commercial application of new clean-burning, coal-fired electric generation technology, resulting in lower generating costs and cleaner air. Pressurized-fluidized bed combustion and integrated gasification combined cycles are highly efficient, low-emission power plant concepts. However…
Revision Date: 4/24/2014
Tags: Ames Metallurgy and Ceramics Laboratory, Mott Metallurgical, Metal Filter, Ceramic Filter, Fabric Filter
Pall has successful experience with ceramic filters
A ceramic filter has logged seven years of successful operation on a 235-MWe IGCC plant in Buggenum in The Netherlands. Steffen Heidenreich (Pall Schumacher GmbH) and Carlo Wolters (Nuon Power Buggenum BV) described the installation in Filtration+Separation.
Revision Date: 4/24/2014
Tags: Pall Corporation, Fabric Filter, Ceramic Filter
Caldo Supplies a Range of Filter Sizes (ff 2005)
Caldo ceramic filters are high temperature devices for the continuous removal of particulates from air to other gases. Caldo supplies a range of filter sizes and for larger gas flows employs a modular approach, combining several vessels of proven design to achieve the required capacity. The addition of sorbent powder enables the filters to function as dry scrubbers in waste gas applications.
Revision Date: 4/24/2014
Tags: Caldo, Ceramic Filter, Fabric Filter
Bekaert cites advantages of Metal Filters
Metal and Ceramic Media Compared for Hotgas Filtration
Revision Date: 4/24/2014
Tags: Bekaert, Fabric Filter, Ceramic Filter, Metal Filter
Griffin Patents Ceramic Filter
Griffin ( www.griffinenviro.com ) has a patent pending for a high temperature (1000°F) ceramic filter.
Revision Date: 4/24/2014
Tags: Griffin, Ceramic Filter, Fabric Filter
CleanStac™ Considered for COHPAC
The process for forming intricate three dimensional ceramic and metal shapes in a scaleable cost effective manner was developed by a team of researchers at the Massachusetts Institute of Technology. Specific Surface modified and scaled MIT's three-dimensional printing process to produce advanced ceramic and metal filter elements. One of these, the CleanStac™ compact ceramic filter, was developed for application to pulse-jet baghouses and is suitable for conventional baghouses where operating temperatures up to 600°C occur.
Revision Date: 4/24/2014
Tags: Specific Surface Corp., Metal Filter, Fabric Filter, Ceramic Filter
Industrial Ceramics Solutions Article in Filtration News
The February Issue of Filtration News includes an article authored by Mr. Dick Nixdorf of Industrial Ceramics describing potential advantages of ThermoPore™ nonwoven ceramic filtration.
Revision Date: 4/24/2014
Tags: Industrial Ceramics, Fabric Filter, Ceramic Filter, Filtration News
Ceramic Filter with Embedded Catalyst and DSI Achieves High SOx, NOx and ROx Removal
Richard Lydon of Clear Edge Filtration Group presented the case for using a ceramic media with an embedded catalyst. The result is high dust removal and high NOx reduction. DSI ahead of the filter allows acid gas removal as well. There are many thousands of these filter elements already in operation on various industrial operations. Recent installations in the U.S. show high efficiencies.
Revision Date: 4/24/2014
Tags: Neuman, Lhoist, Clear Edge Filtration, Fabric Filter, Ceramic Filter
Metallic Filters Provide Advantages Over Ceramic Filters
Cranfield University Power Generation Technology Centre conducted a study of metallic filters for hot gas cleaning. The total cost of this project was funded by the U.K. Dept. of Trade and Industry (DTI) and Microfiltrex (a Division of Porvair Filtration Group Limited).
Revision Date: 4/24/2014
Tags: Porvair, Fabric Filter, Metal Filter, Ceramic Filter
Trimer uses filtration Group Candles and has installations on furnaces in U.S
Tri-Mer’s Ceramic Fiber Technology Facilitates Advancement in Hot Gas Filtration
Revision Date: 4/24/2014
Tags: Tri-Mer, Fabric Filter, Ceramic Filter
Cylenchar additive is effective on both oxidized and elemental mercury according to SRI tests
• In a gas stream carrying a 1,000µg/M3 total mercury and at least 34µg/M3 of elemental mercury, CyCurex® was easily able to reduce the total mercury concentration by >90%, and it was able to deal with >75% of the elemental mercury within 1.1 to 2.2 seconds exposure
Revision Date: 4/21/2014
Tags: 221112 - Fossil Fuel 化石燃料, Cylenchar, Chemical, Mercury
FTIR can measure NH3 along with a number of other gases. Advantages include long laser life, no liquid N2 required, small for factor, no sample pressure restrictions, easy to maintain, makes repetitive tasks easier.
Revision Date: 4/17/2014
Tags: 221112 - Fossil Fuel 化石燃料, ECO Physics, Analyzer - Nox, FTIR, Analyzer - NH3, Continuous Emissions Monitor, Monitoring, Ammonia Monitoring, Nox Monitoring
EPA Methods 201A and 202 (and similar methods) remain problematic for gas-fired sources. Dilution methods offer advantages for gas-fired sources.
Revision Date: 4/17/2014
Tags: 221112 - Fossil Fuel 化石燃料, Environ International, Condensible Particulate Matter, Particulate Matter Emission Measurement
Lafarge Mannersdorf installs a hot ESP and SCR
This plant installed a hot ESP to reduce the dust loading to a new SCR to 2 g/m3. This allowed selection of a relatively small amount of catalyst with narrow openings. This decision was made as an alternative of reheating gas and then locating the SCR at the tail end of the process. The unit has been installed since 2012 and is reported to be operating with some problems according to Bernhard Kopf of Lafarge. The problem is that the ESP is not meeting the predicted emission limits and is running much higher and therefore the catalyst requires periodic cleaning. However, deactivation has been negligible.
Revision Date: 4/16/2014
Tags: Lafarge North America, Ceram Environmental, SCR, Precipitator
Information regarding Mercury Abatement, FGD Liquors and Dissolved Metals Concentrations in FGD Wastewater. There is a big difference in selenium and mercury concentration in the scrubbing liquor which has to be process rather than fuel related.
Revision Date: 4/10/2014
Tags: 221112 - Fossil Fuel 化石燃料, Allen Analytics, Mercury, Mercury Removal
Treatment Chemical Case Studies by Bruce Keiser, Nalco. - Hot Topic Hour April 10, 2014
Nalco offers chemicals to solve the mercury emission problem for coal-fired boilers. One chemical is designed to inject in the boiler, another is injected in the scrubber and a third in the wastewater. The chemical quantities can be varied in order to compensate for process variables. For example the SCR does a better job of oxidizing mercury when the catalyst is new than later in the campaign. As the oxidation potential deteriorates the quantity of chemicals can be increased.
Revision Date: 4/9/2014
Tags: 221112 - Fossil Fuel 化石燃料, Nalco, Mercury, Chemical, Mercury Removal