NO/char reactions at pulverized coal flame conditions

Conference · Tue Jan 01 04:00:00 EST 1980 · Symp. (Int.) Combust., (Proc.); (United States)

OSTI ID:5324874

Levy, J M; Chan, L K; Sarofim, A F; Beer, J M

The effective rate of the NO/char reaction measured over the temperature range 1250 to 1750 K is found. The rate of the reaction is found to be retarded by water vapor and enhanced by CO by amounts that decrease with increasing temperature. This is consistent with a hypothesis that the NO/C reaction is retarded by the formation of a chemisorbed layer which can be removed by reaction with CO. Support for this hypothesis is provided by transient experiments which show that, at low temperatures, NO reacts with carbon to form N/sub 2/ and a chemisorbed oxygen layer, and that the chemisorbed oxygen decomposes at higher temperatures to form CO or reacts with CO to form CO/sub 2/ . 14 refs.

• Research Organization: MIT, Cambridge, Mass
• OSTI ID: 5324874
• Report Number(s): CONF-800809-
• Conference Information: Journal Name: Symp. (Int.) Combust., (Proc.); (United States)
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
014000* -- Coal
Lignite
& Peat-- Combustion
AIR POLLUTION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHARS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISORPTION
COAL FINES
COMBUSTION KINETICS
FLAMES
KINETICS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION
PYROLYSIS PRODUCTS
REACTION KINETICS
SEPARATION PROCESSES
SORPTION
VERY HIGH TEMPERATURE