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Industrial MACT Webinar - Hot Topic Hour November 19, 2010 - Part 2
Carbon, Spray Dryers, Biomass Boilers, CO Challenges and PM CEMS were discussed. Password: hth107
Revision Date: 11/19/2010
Tags: SICK MAIHAK, Golder Associates, Amerex, Albemarle, AECOM, ADA Environmental, MACT, Industrial Boiler
Jon Miller, Technical Support Engineer at Albemarle Corporation, explained that M-PACT is an equipment package to inject activated carbon at much lower cost than a custom design. The first M-PACT unit was sold in 2007 and is providing reliable 90 percent mercury reduction. There are a number of components in the larger systems which are critical. One is the choice of blower for the pneumatic conveying. A regenerative blower is less expensive but has a lower pressure output and is less tolerant of dirty environments. A Roots type PD blower is more expensive but capable of higher pressures and will tolerate some dust.
Revision Date: 11/19/2010
Tags: 221112 - Fossil Fuel 化石燃料, Albemarle, Activated Carbon, Activated Carbon Injection System, Blower, MACT, Industrial Boiler
Improving ESP Performance Webinar - Hot Topic Hour January 20, 2010
ESP Performance Improvement can be Substantial - Hot Topic Conclusion on January 20 There has been lots of focus on replacing ESPs with baghouses to meet upcoming regulations. The speakers in the Hot Topic Hour yesterday said there is an alternative. You can upgrade existing ESPs and achieve results which may satisfy future requirements. Dr. Yougen Kong, P.E., Technical Development Manager at Solvay Chemicals, Inc., told the attendees that “there is a better alternative to SO3 for conditioning electrostatic precipitators.” Trona addition system is simple and its capital cost is much lower than that of a SO3 production and injection system. Trona is relatively inexpensive and can be injected in several places. Mick Chambers, Southern Environmental, Inc, said that you can upgrade your ESP and with halogen-based additives in the coal, you can meet the particulate and mercury regulations. He showed that the SCA of recent installations has been relatively low and yet the performance high. So the footprint of a retrofit does not have to be large. When asked about the wet ESP using a fabric for the collection plate, Mick said that it is a good option and successful on industrial boilers and process applications. We were sorry to learn that John Caine passed away in a tractor accident last September. John had represented SEI in several of our previous Hot Topic Hours and has long been a contributor to the industry. Steve Jaasund, Manager Geoenergy Division A. H. Lundberg Associates, made a case for adding a wet ESP after the FGD system to meet the upcoming MACT regulations. In the discussion period it was speculated that the new mass monitoring requirements would make it more difficult for dry ESPs to meet emission limits. The wet ESP will eliminate the exceedance spikes associated with a stand-alone dry ESP. Paul Leanza of Pollution Control Services, Inc. indicated that many utilities have the opportunity to greatly improve performance of their existing precipitators. He indicated that 50 percent of the emissions occur during rapping (rapping reentrainment). These particles are relatively large and do not cause opacity spikes proportional to the mass increase. It was speculated that with mass monitoring this phenomenon will be an unpleasant surprise. Emissions will be higher with mass monitors than they were thought to be with opacity monitors and periodic stack testing. Ron Landreth of Albemarle was pleased to find that their brominated PAC actually improves precipitator performance whereas the non-brominated PAC may add to emissions. So it is worth considering brominated PAC to capture mercury and reduce particulate. Jean Bustard of ADA-ES (ADA Environmental Solutions LLC) related experience with a proprietary conditioning chemical which has performed well and does not impact mercury capture with PAC. The company offers another approach to conditioning hot side precipitators.
Revision Date: 1/20/2011
Tags: 221112 - Fossil Fuel 化石燃料, A.H. Lundberg Associates, Southern Environmental, Pollution Control Services, Albemarle, ADA-ES, Solvay Chemicals, Dry Sorbent Injection, Electrostatic Precipitator, Mercury
ESPs and Additives
Revision Date: 1/20/2011
Tags: 221112 - Fossil Fuel 化石燃料, Albemarle, Dry Sorbent Injection
Mercury Measurement and Control - Webinar - Hot Topic Hour April 12, 2012
Current monitoring and control of mercury from coal-fired power plants.
Revision Date: 4/12/2012
Tags: 221112 - Fossil Fuel 化石燃料, ADA-ES, Thermo Fisher, Norit, Albemarle, Shaw Group, Sampling Line, Bromine, Activated Carbon, Mercury Monitor, Dry Sorbent Injection, Air Quality, Mercury, Utility MACT, Air Pollution Control
Specially designed concrete-friendly, gas- phase brominated PACs are now routinely used to both provide high levels of Hg capture and allow continued use in cement.
Revision Date: 4/12/2012
Tags: 221112 - Fossil Fuel 化石燃料, Albemarle, Bromine, Dry Sorbent Injection, Mercury, Utility MACT, Air Quality, Air Pollution Control
Mercury Control and Removal Status and Cost - Webinar - Hot Topic Hour August 2, 2012
Different approaches for removing mercury.
Revision Date: 8/2/2012
Tags: 221112 - Fossil Fuel 化石燃料, Chemtura, URS Corp., Albemarle, Hitachi Power Systems America, Catalyst, Membrane, Activated Carbon, Bromine, Mercury
Using a concrete-friendly activated carbon.
Revision Date: 8/2/2012
Tags: 221112 - Fossil Fuel 化石燃料, Albemarle, Activated Carbon, Mercury
The discussion was concentrated on solution of the hydrocarbons and organic HAPs problems associated with cement kilns. This led to a broader discussion of the catalytic filter as a way to solve the organics plus all the other air pollutants
Revision Date: 8/14/2014
Tags: 221112 - Fossil Fuel 化石燃料, Albemarle, NatronX Technologies, Combustion Components Associates, MACT, Mercury