Record Display for the EPA National Library Catalog

RECORD NUMBER: 35 OF 43

OLS Field Name OLS Field Data
Main Title Reactions of Fuel Nitrogen Compounds under Conditions of Inert Pyrolysis.
Author Axworthy, Arthur E. ; Dayan, Victor H. ; Martin, G. Blair ;
CORP Author Rockwell International, Canoga Park, CA. Rocketdyne Div.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Year Published 1977
Report Number EPA/600/J-78/134;
Stock Number PB-299 377
Additional Subjects Fossil fuels ; Nitrogen inorganic compounds ; Pyrolysis ; Air pollution ; Combustion ; Chemical reactors ; Hydrogen cyanide ; Nitrogen oxides ; Reprints ; Chemical reaction mechanisms
Holdings
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Status
NTIS  PB-299 377 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 9p
Abstract
The paper describes the pyrolysis of fossil fuels and model nitrogen compounds in helium in a small quartz plow reactor, as part of a study of the chemical mechanisms involved in the conversion of fuel-nitrogen compounds to nitric oxide (NO) during combustion. Hydrogen cyanide (HCN) was the major nitrogen-containing product obtained in all cases, indicating that HCN is formed during the initial pre-flame stages of combustion and is the principal intermediate in the formation of fuel NO. At a nominal residence time of 1 second, 50% decomposition of pyrrole, quinoline, benzonitrile, and pyridine occurs at 905, 910, 922, and 954 C, respectively. The fraction of the nitrogen in pyridine that is converted to HCN increases from 40% at 960 C to 100% at 1100 C. Benzonitrile produces similar amounts of HCN (49 and 82%). The HCN yields from coals and residual fuel oils increase from the range of 15-25% at 950 C to 23-42% at 1100 C. It is not possible to determine from these single-stage experiments if most of the HCN forms in the primary pyrolysis process or in secondary reactions.