Fundamentals of nitric oxide formation in fossil-fuel combustion. Third quarterly progress report, 29 March-28 June 1982

Technical Report · Tue Feb 01 04:00:00 EST 1983

OSTI ID:6446000

Houser, T; McCarville, M E

Experiments examining the oxidation of HCN in the presence of several fuel additives and of pyridine, using an atmospheric pressure flow system, were conducted in order to determine the mechanism of NO formation from fuel-nitrogen combustion. The previously installed series-bypass valve system for GC sampling proved inefficient, thus was replaced by a linear switching valve. Most of the experiments were carried out in a plug- rather than stirred-flow reactor because of the significantly different results obtained in the two reactors, and N/sub 2/O as well as NO was routinely determined. Significant yields of NO were found at lower temperatures and concentrations for all fuel mixtures in the plug-flow reactor. In addition, the NO/N/sub 2/O yields appeared inversely related. It was not possible to find conditions at which the kinetics of NO formation could be determined using a plug-flow reactor. These observations are discussed in terms of their mechanistic implications. There appears to be a flame and a non-flame pathway, the former produces NO, the latter N/sub 2/O and/or N/sub 2/ from the fuel nitrogen. The relative NO/N/sub 2/O yields indicate that these products arise from a common source. 1 figure, 4 tables.

• Research Organization: Western Michigan Univ., Kalamazoo (USA). Dept. of Chemistry
• DOE Contract Number: FG22-81PC40805
• OSTI ID: 6446000
• Report Number(s): DOE/PC/40805-3; ON: DE83009654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ADDITIVES
AZINES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHROMATOGRAPHY
COMBUSTION PRODUCTS
CYANIDES
DATA
ELEMENTS
EXPERIMENTAL DATA
FUEL ADDITIVES
GAS CHROMATOGRAPHY
HETEROCYCLIC COMPOUNDS
HYDROCYANIC ACID
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
KINETICS
MASS SPECTROSCOPY
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
NITROUS OXIDE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PYRIDINE
PYRIDINES
QUANTITY RATIO
REACTION KINETICS
RESEARCH PROGRAMS
SEPARATION PROCESSES
SPECTROSCOPY
YIELDS