United States Environmental Protection Agency Air and Energy Engineering Research Laboratory Research Triangle Park NC 27711 Research and Development EPA/600/S8-90/049 July 1990 Project Summary Pulverized Coal Combustion: Pollutant Formation and Control, 1970-1980 Paul M. Lemieux The U.S. Environmental Protection Agency (EPA) directed a major research effort during the 1970s to understand pollutant formation during pulverized coal combustion. Understanding the conversion of fuel nitrogen to nitrogen oxides (NOX) is important, since changes in the combustion process designed to control NOX emission may also influence the formation of soot, polycyclic aromatic hydrocarbons (PAHs), and unburned carbon, and the vaporization of inorganic constituents. In addition, reduction of sulfur oxides while maintaining low NOX levels is also important. This Project Summary was developed by EPA's Air and Energy Engineering Research Laboratory, Research Triangle Park, NC, to announce key findings of the research project that is fully documented in a separate report of the same title (see Project Report ordering information at back). Organization The full report details the research that was supported by the Combustion Research Branch of EPA's Air and Energy Engineering Research Laboratory during the 1970s. It is a detailed monograph, written by 19 coauthors, containing sections on: • The High Temperature Decomposition and Combustion of Pulverized Coal. • Characterization of Coal and Coal Thermal Decomposition. • The Fate of Fuel Nitrogen and Ash During Combustion of Pulverized Coal Particles. • Kinetic Modeling of Gas-Phase Chemistry in Coal Volatiles Combustion. • Soot and PAH Formation in Coal Combustion. • The Combustion Rates of Pulverized Coal Char Particles. • Reduction of Nitric Oxide by Solid Particles. • Bench-S ale Experiments on the Formation and Control of NOX Emissions from Pulverized-Coal Combustion. • Optimization of Burner/Combustion- Chamber Design to Minimize NOX Formation During Pulverized Coal Combustion. Printed on Recycled Paper ------- The EPA author, Paul M. Lemieux (also the EPA Project Officer, see below), is with Air and Energy Engineering Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC 27711. The complete report, entitled "Pulverized Coal Combustion: Pollutant Formation and Control. 1970-1980, " (Order No. PB90-229 253/AS; Cost: $60.00, subject to change) will be available only from: National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 Telephone: 703-487-4650 The EPA Project Officer can be contacted at: Air and Energy Engineering Research Laboratory U.S. Environmental Protection Agency Research Triangle Park, NC 27711 •U.S. Government Printing Office: 1993 — 750-071/80102 United States Center for Environmental Research Environmental Protection Information Agency Cincinnati OH 45268 Official Business Penalty for Private Use $300 EPA/600/S8-90/049 ------- |