Internal Data Search by Product
Procedair dry scrubber supplied for a 100 tpd waste to energy plant in Canada
An overview of the Air Pollution Control system at Canada's most recently retrofitted Energy-from-Waste facility is presented. The plant burns 100 tons per day of municipal solid waste in three modular incinerators, which are ducted to a common system for steam generation, heat recovery, and APC. Procedair Industries Inc. provided an All-Dry Scrubbing System for the APC, consisting of a custom-designed venturi reactor, fabric filter, and reagent handling system. The reagent is hydrated lime and the filter bags are woven fiberglass with a Teflon '8' finish. The system is designed for 35, 100 Nm3 /hr of flue gas at 138 to 184'F, and high concentrations of particulates and acid gases. Performance objectives included up to 95% removal efficiency in particulates, doixions/furans, and HCI concentration, and 80% reduction in S02' The system has been operating successfully since early 1997, and recent stack testing has shown that key performance targets are being easily met.
Revision Date: 8/12/2019
Tags: 562213 - Solid Waste Combustors and Incinerators , Procedair Industries, Inc., Circulating Dry Scrubber, Filter Media, Canada
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
Jianchun Wang of Lonjing Environment Technology provided details on the Hangfeng Project. The installation has exceeded the guarantee limits. SO2 removal is 93 percent.
Revision Date: 10/23/2014
Tags: 221112 - Fossil Fuel 化石燃料, Longking, Circulating Dry Scrubber, Dry FGD, Incinerator
McIlvaine Agenda by Bob McIlvaine - Hot Topic Hour October 23, 2014
CDS vs. SDI vs. SDA in Dry Scrubber
Revision Date: 10/23/2014
Tags: 221112 - Fossil Fuel 化石燃料, McIlvaine, Incinerator, Dry Sorbent Injection, Circulating Dry Scrubber, Dry FGD, Spray Dryer
Paul Farber provided a valuable overview with decisive classification of the alternatives. Each of the three options has some advantages and some disadvantages.
Revision Date: 10/23/2014
Tags: 221112 - Fossil Fuel 化石燃料, P. Farber & Associates, LLC, Dry FGD, Circulating Dry Scrubber, Spray Dryer, Dry Sorbent Injection
Regarding the development of the expertise, Joe Riley of BoldEco cited some of the early European work by Solvay and the BoldEco European partner as the first sodium dry scrubber installation.
Revision Date: 10/23/2014
Tags: 221112 - Fossil Fuel 化石燃料, BoldEco Environment, Spray Dryer, Dry Sorbent Injection, Incinerator, Dry FGD, Circulating Dry Scrubber
Mike Widico and Kevin Cosman of KC Cottrell presented a number of positive features about their design. It is compact and even with the cyclone can be fitted into most power plants. Because of the cyclone to capture the calcium sulfate, the downstream precipitator is not contaminated by large quantities of high resistivity dust.
Revision Date: 10/23/2014
Tags: 221112 - Fossil Fuel 化石燃料, KC Cottrell, Dry FGD, Circulating Dry Scrubber, Incinerator
Dry Scrubbing Webinar - Hot Topic Hour October 23, 2014
The Dry Scrubber Hot Topic Hour Webinar on October 23, 2014 contained valuable decisive classifications as well as little known facts and insights. This positive result was the work of some very experienced and knowledgeable individuals.
Revision Date: 10/23/2014
Tags: 221112 - Fossil Fuel 化石燃料, KC Cottrell, McIlvaine, P. Farber & Associates, LLC, BoldEco Environment, Longking, Dry FGD, Circulating Dry Scrubber, Spray Dryer, Dry Sorbent Injection, Incinerator, Byproduct
Solios points out waste disposal advantages of entrained flow
Solios provides a counter argument to the presentations at the March 27 webinar which in one case indicated that SDA has an advantage in terms of waste disposal. Solios contends that it is not only a question of quantity but of potential use. The attached information shows that there are beneficial uses for the entrained flow dry scrubber waste.
Revision Date: 4/9/2014
Tags: 327310 - Cement Manufacturing 水泥生产, 221112 - Fossil Fuel 化石燃料, Fives Solios, Circulating Dry Scrubber, Entrained Flow
Dry FGD technologies compared by Kiewit at March 27 webinar
Mitch Krasnopoler of Kiewit provided a detailed analysis of circulating dry scrubber installations in the U.s. Features of the designs offered by a number of suppliers were compared. This presentation was updated on April 9th to include the Clyde Bergemann dry scrubber.
Revision Date: 4/8/2014
Tags: Kiewit, Clyde Bergemann, Kansas City Equipment Company, Circulating Dry Scrubber
Alstom NID is installed in coal fired power plants as well as incinerators and steel mills
Alstom has a number of installations of a unique type of CDS scrubber desgignated NID. There are a number of installations including 5,000 MW in China and units as large as 585 MW in the U.S. A unit is slated for TVA Gallatin. Two 660 MW systems are being installed at Homer City.
Revision Date: 4/2/2014
Tags: 221112 - Fossil Fuel 化石燃料, Alstom, Circulating Dry Scrubber
Power Plants Will Spend $400 Million for Dry Scrubber Systems This Year
Power plants still prefer wet limestone scrubber systems as a way to capture the SO2 emissions. However, more than 10 percent of the purchases will be for dry systems this year. This is the conclusion reached by the McIlvaine Company in FGD Market and Strategies
Revision Date: 4/2/2014
Tags: McIlvaine, Scrubber, Circulating Dry Scrubber, Scrubbing
MET/ITPE CDS has two stages of humidification
The multi stage humidification which is separate from the sorbent injection allows for optimum water use.
Revision Date: 4/2/2014
Tags: Marsulex Environmental Technologies, Institute of Thermal Power Engineering, Circulating Dry Scrubber
Over 140 installations of MET/ITPE dry scrubber
Here are some of the 140 references of this circulating dry scrubber designed by the Institute of Thermal Power Engineering in China and licensed to MET in the U.S. Experience includes coal fired power plants and municipal waste incinerators
Revision Date: 4/2/2014
Tags: Institute of Thermal Power Engineering, Marsulex Environmental Technologies, Circulating Dry Scrubber
Extensive CDS Experience Already Gained in U.S
Lime and hydrated lime are widely available to meet the demands of FGT applications in the U.S. power industry. Lime-based CDS technologies have become popular options to achieve very high removals of multiple pollutants produced from solid fossil fuel-fired electricity generating units. Four lime-based CDS technologies have been installed in 12 PC boilers and 12 CFB boilers. Constructions are underway at 15 PC boilers. These technologies are applied to units with sizes ranging from 58 to 690 MW. Data obtained from AES Greenidge and Sandow Stations showed that the emission limits of Hg, filterable particulate, and HCl mandated under the Mercury and Air Toxics Standards were met. CDS is capable of handling solid fuels with various sulfur contents. CDS is capable of handling wide swing load. Multiple CDS reactor vessels can be placed in parallel to process flue gases from larger units.
Revision Date: 3/26/2014
Tags: McIlvaine, Circulating Dry Scrubber
There is some common history in the Lurgi and Graff –Wulff design which is now owned by Foster Wheeler. A large unit at Dry Fork has been in operation for several years. Some large Chinese installations by Wuhan Kaidi and others date back to 2005 and a number of units in Europe date back even farther.
Revision Date: 3/26/2014
Tags: 221112 - Fossil Fuel 化石燃料, Foster Wheeler, Wuhan Kaidi, Circulating Dry Scrubber
Extensive CDS Experience Already Gained in U.S
Lime and hydrated lime are widely available to meet the demands of FGT applications in the U.S. power industry. Lime-based CDS technologies have become popular options to achieve very high removals of multiple pollutants produced from solid fossil fuel-fired electricity generating units. Four lime-based CDS technologies have been installed in 12 PC boilers and 12 CFB boilers. Constructions are underway at 15 PC boilers. These technologies are applied to units with sizes ranging from 58 to 690 MW. Data obtained from AES Greenidge and Sandow Stations showed that the emission limits of Hg, filterable particulate, and HCl mandated under the Mercury and Air Toxics Standards were met. CDS is capable of handling solid fuels with various sulfur contents. CDS is capable of handling wide swing load. Multiple CDS reactor vessels can be placed in parallel to process flue gases from larger units
Revision Date: 3/20/2014
Tags: 221112 - Fossil Fuel 化石燃料, Graymont, Circulating Dry Scrubber, Efficiency, Module
Comparison of components and systems in dry scrubbing
Paul Farber presented good detailed analysis of components as well as systems. He compared rotary atomizer vs dual fluid nozzles I SDA and addressed both the fluidized bed and Nids as sub segments of CDS. For example NIDS is limited to much smaller modules. Dual fluid nozzle design has smaller footprint. Waste handling and DSI are also covered in extensive analysis
Revision Date: 3/18/2014
Tags: Dual Fluid Nozzle, Spray Dryer Absorber, Circulating Dry Scrubber, Direct Sorbent Injection, Rotary Atomizer, Slaker
Comparison of spray dryer and CDS by Farber et al
Each has advantages. SO2 Capture Capability-advantage to CDS Fuel Flexibility- advantage to CDS Load Flexibility-advantage to SDA Utilities Consumption-slight advantage to SDA Waste Production- advantage to SDA
Revision Date: 3/18/2014
Tags: Circulating Dry Scrubber, Spray Dryer, Efficiency, Cost
Gas Suspension Absorber / Description
One of the reasons for the high efficiency of the KC Cottrell GSA is that the reactor has been based on gas suspension technology. This means that a very large concentration of fly ash, dust particles and lime builds up inside the reactor. The concentration is normally 50 to 100 times as high as in a conventional reactor. The effect is further enhanced by the fact that lime, fly ash and by-products are recycled about 100 times in the KC Cottrell GSA system. A short erection period is achieved due to a modular design, offering enormous flexibility. Maintenance costs for the KC Cottrell GSA are extremely low compared to more conventional plants. One reason for this is the minimal wear and tear due to few moving parts and a very simple, uncomplicated and stationary nozzle.
Revision Date: 3/17/2014
Tags: KC Green Holdings, KC Cottrell, Dry FGD, Screw Conveyor, Circulating Dry Scrubber, Cyclone, Gas Suspension Absorber, Module, Air Quality
Gas Suspension Absorber Technology for Multi-pollutant Control of Boiler Flue Gas Emissions
A recirculating bed dry scrubber technology capable of efficient acid gas control –SO2, HCl, and H2SO4. •Utilizes lime reagent either as dry hydrate or as lime slurry. •Coupled with ESP or FF for control of PMand PM-10 emissions. •Can incorporate ACI for control of Hg and dioxins/furans. •Emissions of HCl, PM, Hg below MACT requirements.
Revision Date: 3/17/2014
Tags: KC Green Holdings, KC Cottrell, Circulating Dry Scrubber, Screw Conveyor, Dry FGD, Gas Suspension Absorber, Cyclone, Air Quality, Module
Features and Benefits of KC Cottrell’s Gas Suspension Absorber (GSA) Technology
The lime can be injected either as a slurry, through commercially available two-fluid nozzle atomizers, or as powdered calcium hydroxide. The intense recirculation within the reactor promotes efficient acid gas neutralization, resulting in high removal efficiencies at low lime consumption rates. The nozzles are commercially available and can be changed out on the fly, without impacting scrubbing efficiency. The use of the cyclone to capture and recycle solids from the reactor vessel greatly reduces the demand on the downstream particulate collector. The slim profile of the GSA reactor vessel itself minimizes plan area requirements, which are frequently at a premium in retrofit applications
Revision Date: 3/17/2014
Tags: KC Green Holdings, KC Cottrell, Cyclone, Circulating Dry Scrubber, Gas Suspension Absorber, Screw Conveyor, Dry FGD, Air Quality, Module
Revision Date: 5/24/2013
Tags: 221112 - Fossil Fuel 化石燃料, Dustex, Heat Exchanger, Fabric Filter, Mercury, Circulating Dry Scrubber, USA
Multi-Emissions Control - Webinar - Hot Topic Hour October 27, 2011
Speakers discussed the technology and equipment available or under development that provides multi-emissions control and can be implemented by EGU operators to achieve compliance with CSAPR and MACT limits.
Revision Date: 10/27/2011
Tags: 221112 - Fossil Fuel 化石燃料, Alstom Power, United Conveyor, Solvay Chemicals, Spray Dryer Absorber, Reagent, Chemical Injection, Dry Sorbent Injection, Spray Tower, FGD, SCR, Sodium Bicarbonate, Trona, Circulating Dry Scrubber, Direct Injection System, Air Quality, SO2, SO3, HCl, Mercury
John Buschmann, Technology Manager at ALSTOM Power Inc., provided an overview of the proposed Utility MACT emission values and discussed the implications for utilities seeking compliance not only under Utility MACT but also under CSAPR and various other existing and anticipated regulations. The solution is not a one-size-fits-all approach but rather a careful balancing of combinations of AQCS technologies that make up an overall compliance plan.
Revision Date: 10/27/2011
Tags: 221112 - Fossil Fuel 化石燃料, Alstom Power, SCR, Circulating Dry Scrubber, Spray Tower, Reagent, Dry Sorbent Injection, FGD, Spray Dryer Absorber, Chemical Injection, Air Quality, SO2, SO3, HCl, Mercury
Terence Ake discussed circulating dry scrubbers for PM2.5 compliance
Revision Date: 5/12/2011
Tags: 221112 - Fossil Fuel 化石燃料, Babcock & Wilcox, Circulating Dry Scrubber, PM2.5
Compliance Strategies for PM2.5 - Hot Topic Hour - May 12, 2011
Revision Date: 5/12/2011
Tags: 221112 - Fossil Fuel 化石燃料, Babcock & Wilcox Power Generation Group, ETS, A.H. Lundberg Associates, Electrostatic Precipitator - Wet, Circulating Dry Scrubber, Fabric Filter, PM2.5
Shiaw Tseng, Marketing Manager at Graymont, Inc., described a multi-pollutant control system for existing coal-fired power plants using lime-based Circulating Dry Scrubbers (CDS) to remove SO2, SO3, HCl, and HF. He presented the results of performance guarantee tests conducted at the AES Greenidge Station Unit #4 (107 MW) burning eastern bituminous coal (2.5 to 3 percent sulfur) with a CDS and baghouse. These tests showed pretty impressive reductions of SO2, SO3, Hg and HCl to levels that were well under the limits in the proposed utility MACT. Advantages of this system include a relatively small footprint, fuel flexibility (including biomass), low water consumption and dry byproducts (no wet sludge). Interestingly, the CDS system achieved better mercury reduction than using ACI under the same operating conditions, indicating that ACI is not required. These systems are currently operating at 14 plants in the U.S.
Revision Date: 4/7/2011
Tags: 221112 - Fossil Fuel 化石燃料, Graymont, Circulating Dry Scrubber, Lime
New FGD & DeNOx Approaches - Webinar April 7, 2011
Discussion on the current "state of the art" for FGD and DeNOx systems, the capabilities and limitations of current control systems and technology, the latest advancements in control technology being developed or tested and what still needs to be done to allow the utility industry to comply with the coming MACT and the other regulations.
Revision Date: 4/7/2011
Tags: 221112 - Fossil Fuel 化石燃料, CoaLogix, FMC Corporation, Johnson Matthey, Sulzer Ltd., Graymont, Lime, Static Mixer, Circulating Dry Scrubber, Hydrogen Peroxide, Catalyst Maintenance