Laser probes of natural gas ignition chemistry. Annual report, January 1987-December 1987

Technical Report · Fri Jan 01 04:00:00 EST 1988

OSTI ID:6961175

Crosley, D R; Smith, G P; Golden, D M

The research described is aimed at developing and using laser-induced fluorescence of various hydrocarbon species as probes in natural gas combustion research, and at developing an understanding of the mechanisms of ignition, catalytic combustion, and flame chemiluminescent emission of natural gas. In a collaborative effort with researchers from Yale University, LIF measurements were made of O atoms, OH radicals, and temperatures above a catalytically augmented gas-phase combustor, showing the influence of catalytic surfaces at various mixing ratios. Low pressure burner measurements show that, for OH and CH chemiluminescence, simple pressure scaling is inadequate and multiple mechanisms are probably present. Transition state/RRKM theory calculations to codify parameters for extrapolation of rate constants with temperature and pressure were systematically begun for abstraction, decomposition, and activation reactions important in natural gas combustion.

• Research Organization: SRI International, Menlo Park, CA (USA)
• OSTI ID: 6961175
• Report Number(s): PB-88-212568/XAB; SRI-MP-88-044
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
033000 -- Natural Gas-- Properties & Composition
034000* -- Natural Gas-- Combustion
ALKYL RADICALS
CHEMICAL REACTIONS
CHEMILUMINESCENCE
COMBUSTION
DOCUMENT TYPES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROXYL RADICALS
IGNITION
LUMINESCENCE
MATHEMATICAL MODELS
METHYL RADICALS
NATURAL GAS
OXIDATION
PROGRESS REPORT
RADICALS
THERMOCHEMICAL PROCESSES