Internal Data Search by Process
Hundreds of Options Facing Power Plants Purchasing New or Upgrading Wet Calcium FGD Systems
The wet calcium (lime and limestone) process is only one option for removing SO2. Dry systems, ammonium sulfate, seawater, amine and other processes are also alternatives. Assuming that the purchaser has decided to purchase a new or upgrade an existing wet calcium FGD system, he must then make hundreds of decisions about processes and components. These systems represent up to 15 percent of the entire power plant investment. So it is important that all options be considered and the best selected. Power Plant Air Quality Decisions is a program providing utilities with a continuing and thorough analysis of issues and options. The first set of options involves system design…
Revision Date: 5/21/2015
Tags: McIlvaine, Wet FGD, Calcium, FGD
China Can Remove Mercury at Low Cost Thanks to U.S. Developments 中国能以低成本除汞得益于美国的技术发展
In order to meet tough regulations in the U.S. technology developers have made great strides in creating low cost routes to achieve mercury removal from power plant exhausts. The cost is especially low if the plant already has a scrubber. China is installing scrubbers on nearly all its plants. As a result China can remove mercury with just a few percent increase in its air pollution control investment and operating cost. There have been some very significant recent breakthroughs which need to be communicated to the Chinese policy makers. To this end Mcilvaine conducted a webinar in Mandarin Chinese with two FGD experts . A presentation on removal technology was made by Bobby Chen of CBI Shaw. Questions and discussion was provided by Shiaw Tseng of Graymont. This presentation in Mandarin is available as a recording in the Mcilvaine Global Decisions Orchard and on Youtube.
Revision Date: 8/19/2013
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Graymont, CB&I, McIlvaine, Liquid Bromine Injection, FGD, Air Quality, Mercury, FGD, China
Control and Treatment Technology for FGD Wastewater Webinar - Hot Topic Hour August 15, 2013
There are State rules in place which are requiring significant investment in treatment.
Revision Date: 8/15/2013
Tags: 221112 - Fossil Fuel 化石燃料, URS Corp., Advatech, Veolia, EPRI, Wastewater Spray Dryer, Pressure Evaporation, Non-Thermal, MATS, Arsenic, Selenium, Nitrogen, Mercury, Effluent Treatment, Wastewater, FGD, Zero Liquid Discharge
MHI has developed low CAPEX/OPEX technology for truly achieving zero liquid discharge (ZLD) from wet FGD to meet the stringent effluent limits.
Revision Date: 8/15/2013
Tags: 221112 - Fossil Fuel 化石燃料, Advatech, Wastewater Spray Dryer, Effluent Treatment, MATS, Mercury, Arsenic, Selenium, Nitrogen, Wastewater, Zero Liquid Discharge, FGD
FGD Wastewater Treatment Evaluation by Paul Chu, EPRI - Hot Topic Hour August 15, 2013
Paul presented the work EPRI has been doing to evaluate wastewater treatment options.
Revision Date: 8/15/2013
Tags: 221112 - Fossil Fuel 化石燃料, EPRI, Effluent Treatment, MATS, Mercury, Arsenic, Selenium, Nitrogen, Wastewater, FGD
The CoLD Crystallization Process by William Shaw, Veolia - Hot Topic Hour August 15, 2013.
New approaches to evaporator system design, especially the recently patented CoLD® crystallization technology.
Revision Date: 8/15/2013
Tags: 221112 - Fossil Fuel 化石燃料, Veolia, Pressure Evaporation, Effluent Treatment, MATS, Mercury, Arsenic, Selenium, Nitrogen, Wastewater, FGD, Zero Liquid Discharge
Gordon discussed the non thermal ZLD process.This process would seem to be ideal in conjunction with the hot catalytic filter with DSI and is therefore being displayed on the hot gas filter website
Revision Date: 8/15/2013
Tags: 221112 - Fossil Fuel 化石燃料, URS Corp., Non-Thermal, Effluent Treatment, MATS, Mercury, Arsenic, Selenium, Nitrogen, Wastewater, FGD, Zero Liquid Discharge
Revision Date: 8/1/2013
Tags: 221112 - Fossil Fuel 化石燃料, CB&I, Lundberg Associates, Neumann Systems Group, Novinda, Mercury Monitor, Dry Sorbent Injection, Liquid Bromine Injection, Wet Electrostatic Precipitator, Reagent Recovery, Mercury, FGD
Discussed a process for recycling injected sorbents.
Revision Date: 8/1/2013
Tags: 221112 - Fossil Fuel 化石燃料, Neumann Systems Group, Reagent Recovery, FGD
Partner with Andritz Power as you are with Andritz Metals and Pulp & Paper
Revision Date: 1/8/2013
Tags: 221117 - Biomass Power , Andritz, Flow Monitor, pH Meter, Advanced Process Control, Wastewater Treatment, Scrubbing, FGD
Cross-State Air Pollution Rule Decision Will Have Only Minor Impact on the Equipment Market
The McIlvaine Company forecasts that this development will change the U.S. FGD and NOx control market forecasts by less than ten percent over the next five years. It will have less than one percent impact on the world markets. See link for the present forecasts in FGD World Markets and NOx Control World Markets.
Revision Date: 8/28/2012
Tags: 221112 - Fossil Fuel 化石燃料, SCR, Monitoring, Market, Regulation, CSAPR, Monitoring, FGD
Terry discussed the effective control of solid and condensable particulates with wet ESPs.
Revision Date: 4/26/2012
Tags: 221112 - Fossil Fuel 化石燃料, Babcock Power, Electrostatic Precipitator - Wet, PM2.5, FGD
Particulate and Condensable Removal Webinar Recording - Hot Topic Hour April 26, 2012
Both wet precipitators and fluid bed absorbers followed by fabric filters can achieve low emissions of particulate and condensables. This was the message delivered by three speakers with over 100 years of experience in the industry.
Revision Date: 4/26/2012
Tags: 221112 - Fossil Fuel 化石燃料, Siemens Environmental Systems & Services, Babcock Power, A.H. Lundberg Associates, Electrostatic Precipitator - Wet, PM2.5, FGD
Xylem Flygt 4600 mixer used in lime slurry tanks and ore processing
The 4600 series mixers are ideal for lime slurries because of the two abrasion resistant options tungsten carbide or silicon carbide. With 8 different models, this makes it also a good option for ore processing. WCCR has superior sliding properties meaning considerably less wear between the two seal surfaces offering a longer life with less risk of leakage. It offers better mechanical strength and is far less brittle and sensitive to handling damage than SiC. WCCR has a binder where chromium, nickel and molybdenum have been added giving excellent corrosion resistance down to a pH of 3. SiC has the advantage when the pH is lower than 3 or when mixing small particles that are harder than WCCR.
Revision Date: 12/12/2011
Tags: 221112 - Fossil Fuel 化石燃料, 212000 - Mining & Quarrying , Xylem, Mixer, Air Quality, Reagent Preparation, FGD, Water Circulation, Water Clarification
Physical-Chemical, biological and ZLD are all used for FGD wastewater
Options for Treating FGD Purge Wastewater • Physical-chemical treatment to reduce total suspended solids, adjust pH, de-supersaturate the purge stream, and reduce heavy metals. Since 2004, about 14 systems have been installed and are operating in the United States; 27 more are under construction. • Biological treatment to reduce selected heavy metals (such as selenium), and/or organics resulting from use of organic acids, and/or to reduce total nitrogen (usually due to ammonia slip from a selective catalytic reactor). This system is usually preceded by a physical-chemical system to protect it from scaling and suspended solids overload. Since 2004, about eight biological treatment systems have been installed or are planned for installation at FGD wastewater facilities. • Zero liquid discharge (ZLD) using thermal units (evaporator, crystallizer, spray dryer). Only one was operated briefly in the United States in the 1990s, but it experienced scaling, plugging, corrosion, and high capital and operations and maintenance costs. Two more have been ordered in recent years, with one under construction and one canceled during construction. • ZLD using deep-well injection. One is in operation in the United States, and one is under construction. This option costs $5 million to $6 million per well, with two to three wells per site. This system also requires a physical-chemical treatment system preceding it to reduce suspended solids and to de-supersaturate the wastewater to prevent scaling in the high temperature, high pressure deep-well environment. • Sludge stabilization by mixing FGD purge with fly ash for land filling. None are currently being built; however, about 15 were constructed in the 1970s-1980s. This approach eliminates the ability to sell fly ash for commercial products and requires extra landfill volume. • Stacking the gypsum for either final disposal or future reclaim. This will absorb some of the purge in the stack. Liquid runoff is collected in holding basins, mixed with ash water, or held in solar evaporation ponds (in favorable climates). A couple of these designs are under construction but could be required to retrofit to treat the gypsum stack runoff. • Constructed wetlands treatment system. Only three have been completed, and performance has been mixed.
Revision Date: 12/5/2011
Tags: 221112 - Fossil Fuel 化石燃料, Xylem, Wastewater, Biological Treatment, FGD, Physical Chemical Treatment, Zero Liquid Discharge
Degremont sells biological treatment systems for FGD wastewater
The Degremont system for removing selenium and nitrates from FGD wastewater includes both aerobic and anaerobic stages. Sand filters, mixers filter presses, clarifiers are utilized.
Revision Date: 12/5/2011
Tags: 221112 - Fossil Fuel 化石燃料, Degremont Technologies, Xylem, Aerobic Digester, Sand Filter, Clarifier, Filter Press, Mixer, Anaerobic Digester, Air Quality, Wastewater, FGD, Wastewater Treatment
Sequencing batch reactors and a continuous variation ( Intermittent cycle extended aeration system) are used in many industries as well as in municipal applications. The ICEAS-NIT process can remove BOD, TSS, ammonia and total nitrogen.
Revision Date: 11/28/2011
Tags: 221112 - Fossil Fuel 化石燃料, 311611 - Animal (except Poultry) Slaughtering , 314000 - Textile Products , 722310 - Food Service Contractors , Xylem, Sequencing Batch Reactor, Air Quality, Activated Sludge, Biological Treatment, Clarification, Wastewater Treatment, FGD
Discussions with Plate Fabricators at Coal-Gen, August, 2011
These companies are using stainless plate up to ½ thick. We have contacts in the text. C276 lining is Chatanooga boiler solution for 2205.
Revision Date: 8/21/2011
Tags: 221112 - Fossil Fuel 化石燃料, Horn Industrial Services, Caldwell Tank, Ameco, Industeel, Chattanooga Boiler & Tank, Advanced Tank, Fisher Tank, Stainless Steel, Fabricator, Air Quality, Sale, Wastewater, Fabrication, FGD, USA
FGD and DeNOx NEWSLETTER, July 2011
FGD and DeNOx news and information The complete text can be found with a click on: http://www.mcilvainecompany.com/brochures/energy.html#47ai. You can registered to receive these headlines each month at http://www.mcilvainecompany.com/brochures/Free_Newsletter_Registration_Form.htm.
Revision Date: 7/22/2011
Tags: 221112 - Fossil Fuel 化石燃料, McIlvaine, FGD, Wastewater, Air Quality, DeNOx, FGD, FGD & DeNOx Newsletter
Wyoming Lime Producers (WLP), a division of Dakota Coal Company, owns the Frannie Lime Plant, a limestone processing plant near Frannie, WY. Pete Lien & Sons of Rapid City, SD operate the plant under a Lime Plant Marketing and Operating Agreement. The Frannie Lime Plant converts limestone to high quality lime through a heat transfer process called calcination. Lime quality has a direct relationship with limestone quality. All coal-based power plants that use a dry scrubber system are demanding higher quality lime because of the more stringent Clean Air Act requirements. Customers include power plants operated by Basin Electric, PPL Montana, Colorado Energy and Otter Tail Power Company.
Revision Date: 7/7/2011
Tags: 221112 - Fossil Fuel 化石燃料, Wyoming Lime, Otter Tail Power, PPL, Basin Electric, Pete Lien & Sons, Colorado Energy, Lime, Air Quality, FGD, USA
Italy’s Cleaner Coal Powered Plant Driven Forward by Outokumpu Steel
Super-austenitic 1.4565 steel are used in 3 absorber towers in the FGD system at Torrevalidaliga-Nord in Italy.
Revision Date: 6/13/2011
Tags: 221112 - Fossil Fuel 化石燃料, Outokumpu, Enel, Industeel, Wet Limestone, Super Austenitic, Absorber, Air Quality, SO2, FGD, Acid Gas Removal, Italy
Excellent cost to performance ratio for Duplex stainless in FGD demonstrated by Industeel
An analysis by Industeel based on a number of FGD installations demonstrates the corrosion resistance of duplex stainless. The cost advantage of duplex over austenitics has continued to increase. Industeel has prepared a selection guide based on chloride content in the recirculating slurry. Duplex has proved its advantages for most systems. However, where chloride levels are excessive Ni-base alloys should be considered. The super austenitic grade UNS S31266 can also be an alternative.
Revision Date: 6/13/2011
Tags: 221112 - Fossil Fuel 化石燃料, Industeel, Stack, Scrubber, Duplex Stainless, Air Quality, Corrosion, Acid Gas Removal, FGD
Veolia ZLD Process for FGD Wastewater
Bill Shaw of Veolia gave a presentation in the McIlvaine September 2009 hot topic hour on their ZLD process to convert FGD wastewater to disposable or reusable salts and pure water. This presentation appears in the protected McIlvaine Power Plant Air Quality Decisions but is also being made available on this free site courtesy of Industeel (a Global Knowledge Orchard sponsor and supplier of alloys for ZLD).
Revision Date: 5/17/2011
Tags: 221112 - Fossil Fuel 化石燃料, Industeel, Veolia, Zero Liquid Discharge System, Air Quality, Wastewater, Corrosion, FGD, Wastewater Treatment
Material Handling in Coal Plants - Hot Topic Hour February 10, 2011
Speakers addressed the various material handling systems and equipment available for all of the materials used in a coal-fired power plant, the advantages or disadvantages of each, their operating experience with the equipment, potential problems to avoid during design and operation and new technology available to improve performance while reducing energy consumed and maintenance requirements. Password: hth192
Revision Date: 2/10/2011
Tags: 221112 - Fossil Fuel 化石燃料, Pennsylvania Crusher, Semi-Bulk Systems, FLSmidth, Aumund Group, Pneumatic Conveyor, Conveyor, Reagent Preparation, Mechanical Conveyor, Flyash, Air Quality, Reagent Preparation, FGD, Coal Handling
Location of Blome linings in coal-fired power plant
Revision Date: 1/12/2011
Tags: 221112 - Fossil Fuel 化石燃料, Blome International, Lining, Air Quality, FGD
Invista DBA Dibasic Acid for Flue Gas Desulfurization
Invista provided the latest news on availability and performance of DBA to improve limestone scrubber efficiency.
Revision Date: 11/17/2010
Tags: 221112 - Fossil Fuel 化石燃料, Invista (Koch), Dibasic Acid, Air Quality, Efficiency, FGD
Dibasic Acid from Invista for Higher SO2 Removal Efficiency
Invista DBA will be Available to Improve FGD Efficiency Rick Beatty and Gary Hilkert of Invista told a Hot Topic audience Wednesday that the Orange, Texas plant will be starting operations in the first quarter 2011 and will be able to deliver dibasic acid (DBA) to the power market. The meeting started with an overview by McIlvaine pointing out that the PM2.5 ambient rules will force states to require very low emissions of SO2 in order to reduce sulfates. Los Angeles is still struggling to meet the ambient rules even after they eliminated coal-fired power plants and major sources. The South Coast Air Quality Management District issued a new rule this month which will require refineries and several remaining sources to reduce SO2 to less than 10 tons at a cost of many millions of dollars. Note this is not 10,000,000 tons, or 10,000 tons. It is 10 tons aggregated for all sources. By contrast coal-fired boilers in the rest of the country emit 8.9 million tons. The new South Coast reduction is less than CEMS accuracy when the emissions are 10,000 tons. There is a caveat. If sources cannot buy allowances for less than $50,000/ton, then there is some relief. Welcome to the new world of PM2.5 ambient limits. DBA can substantially improve the efficiency of a limestone SO2 scrubber. In fact it can provide the equivalent of spraying an extra 20 gpm/1000 cfm of limestone slurry. So a power plant with the need to move from 92 to 95 percent SO2 removal can either add 25 percent to the pump energy input or buy an organic chemical. With greenhouse gases being of increasing concern, the increase in energy consumption is critical. DBA can minimize the efficiency reduction due to high chlorides in the recirculating scrubbing liquor. It can provide fuel and limestone purchasing flexibility. There is the potential to add to the biological oxygen demand in the wastewater but zero liquid discharge or biological treatment solves this problem. Most plants have wastewater concerns with or without DBA. DBA may improve HCl removal efficiency. Its function in dissolving the limestone should be equally effective on acid gases other than SO2. Since the Utility MACT will probably limit HCl to 3 ppm, it is likely that scrubber systems will be designed around this parameter. Invista is offering carload quantities of DBA for testing.
Revision Date: 11/17/2010
Tags: 221112 - Fossil Fuel 化石燃料, Invista (Koch), Dibasic Acid, Air Quality, Efficiency, FGD
Zero Liquid Discharge for Power Plant Scrubbers - Hot Topic Hour November 12, 2008
On November 12, 2008, Devesh Mittal and Greg Mandigo made the case for zero liquid discharge as an alternative to the combination of physical and biological treatment. Three systems are operating at Enel plants in Italy with others under design. KCPL Iatan 2 will also use ZLD. A number of systems are already used for cooling tower blowdown. Biological systems require dilution to protect the micro organisms. Also, boron and certain other contaminants are not captured in these systems. Zero liquid discharge achieves the complete prevention of contaminants reaching the wastewater.
Revision Date: 11/12/2008
Tags: 221112 - Fossil Fuel 化石燃料, Enel, Aquatech, KCPL, McIlvaine, Wastewater Treatment System, Evaporator, Air Quality, Effluent Treatment, Wastewater, FGD