Record Display for the EPA National Library Catalog


Main Title Nitric Oxide Formation during Pulverized Coal Combustion.
Author Song, Y. H. ; Pohl, J. H. ; Beer, J. M. ; Sarofim, A. F. ;
CORP Author Massachusetts Inst. of Tech., Cambridge. Dept. of Chemical Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher c1982
Year Published 1982
Report Number EPA-R805515; EPA/600/J-91/286;
Stock Number PB92-121433
Additional Subjects Coal combustion ; Nitrogen oxides ; Air pollution ; Flames ; Air pollution control ; Stationary sources ; Pulverized fuels ; Chars ; Volatility ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB92-121433 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
The paper discusses the formation of nitrogen oxides (NOx) during pulverized coal combustion. Data on the overall conversion of coal-nitrogen to NOx were obtained at 1250 and 1750 K for a residence time of 1 second. The conversion of coal-nitrogen to NOx decreased monotonically with increasing fuel/oxygen equivalence ratio and decreased slightly with increasing temperature. Oxidation experiments were also carried out on char to separate the contribution to NOx emissions of the char from that of the volatiles. The char used was prepared by the pyrolysis of coal at a temperature and residence time corresponding to those of oxidation experiments. The conversion to NOx of char-nitrogen was lower than the corresponding value for coal-nitrogen. It was found that volatilized nitrogen compounds accounted for a major fraction of NOx produced from coal-nitrogen, especially at high temperatures and low fuel/oxygen equivalence ratios.