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NO/CHAR REACTIONS AT PULVERIZED COAL FLAME CONDITIONS
Citation:
Levy, J., L. Chan, A. Sarofim, AND J. Beer. NO/CHAR REACTIONS AT PULVERIZED COAL FLAME CONDITIONS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-91/284 (NTIS PB92121417), 1991.
Description:
The paper discusses nitrogen oxide (NO)/char reactions at pulverized-coal flame conditions. he effective rate of the NO/char reaction, measured over the temperature range 1250 to 1750 K, was found to be retarded by water vapor and enhanced by carbon monoxide (CO) by amounts that decrease with increasing temperature. his is consistent with a hypothesis that the NO/carbon (c) reaction is retarded by the formation of a chemisorbed layer that can be removed by reaction with CO. upport for this hypothesis is provided by transient experiments which show that, at low temperatures, NO reacts with C to form nitrogen (N2) and a chemisorbed oxygen (O2) layer, and that the chemisorbed O2 decomposes at higher temperatures to form CO or reacts with CO to form carbon dioxide (CO2).
