Hot Topic on Friday, March 12, 2010 Will Be Cement MACT – Impacts and Solutions Session 2

The cement industry needs to know what the power industry is doing to develop MACT and the power industry definitely needs to know what EPA is doing to the cement industry. The MACT rule for cement plants has been proposed and will be promulgated in June. Since HAP emissions from power plants are much greater than from cement plants, utilities can expect at least equally stringent regulations.

This Hot Topic Hour will build on the very well attended webinar on the “Cement MACT” held on Feb. 12th. At that session we heard Andy O’Hare of the Portland Cement Association report on an industry analysis which shows that there will be more than 100 scrubbers, bag filters, and ACI systems required to meet the new regulations. There will also be substantial numbers of regenerative thermal oxidizers. He questions whether there are the engineering and construction resources to supply the more than $3 billion in equipment which will be needed. Yougen Kong of Solvay presented information on removal of HCl, SO2 and mercury in 12 cement plants in Europe. David Gossman of Gossman Consulting indicated that a circulating fluid bed absorber has been permitted for a cement plant but has not yet been built. Dennis Laudal of the Energy & Environmental Research Center at the University of North Dakota discussed the issues associated with the use of activated carbon for mercury control in cement kilns, and Ron Hawks of Environmental Quality Management, Inc. discussed the impact of proposed MACT limits for mercury and possible solutions.

At this session the following speakers will expand on these presentations and add additional new information on potential solutions for the cement industry:
Dr. Ronald R. Landreth, Business Development Manager for Albemarle Sorbent Technologies, will discuss potential solutions for mercury control in the cement industry. Cement kilns have been left with limited options with the solution most often presented being the addition of an expensive additional control device such as a baghouse after the flue gas exits the existing plant. Albemarle Sorbent Technologies has developed and is testing a concept to utilize the existing particulate control device already in operation at the facility in conjunction with the concrete-friendly mercury sorbent C-PACTM to comply with the proposed Cement Kiln MACT.

Dr. Constance (Connie) L. Senior, Manager Engineering Research & Development at Reaction Engineering International, will discuss measurement and control of mercury emissions in cement kilns. Mercury transients in cement kilns complicate both measurement of mercury and control. Characteristics of the transients will be presented, using both data and modeling of kiln operation. The implications for measurement and control will be discussed, particularly the impact of the Raw Mill on Hg emissions, and speciation and data on the effectiveness of air pollution control devices for removing Hg in cement kilns will be presented.
Gerald Young, Vice-President of Process and Environmental at Penta Engineering Corporation, will discuss sources of carbon dioxide emissions and conventional control technologies. Global CO2 emissions from cement production represent 3.5 – 4.0 percent of global CO2 emissions from fossil-fuel burning and cement production. This presentation will present the major sources of CO2 emissions from cement manufacturing and a description of the conventional control measures that can be employed to reduce CO2 emissions.
Rich Brown of Altech Environment USA will present a general overview of the emissions monitoring requirements of the cement MACT and discuss the equipment Altech offers to provide solutions.
Cement Facilities, listed as an “All In” source are subject to the GHG reporting rule and are required to provide GHG monitoring. The use of GHG CEMS is optional for some specific source categories not subject to other EPA programs. EPA is allowing sources to use a source category specific GHG calculation method. Monitoring is based upon other parameters and fuel use, which may vary given the specific source category (e.g. mass balance, site-specific emissions factor, or default emissions factor).
You can register at: Power Plant Air Quality Custom Training – Cement, click on: https://www.mcilvainecompany.com/Cement_Custom_Training _Registration.htm




Bob McIlvaine
847 784 0012 ext 112
rmcilvaine@mcilvainecompany.com
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