Program on the combustion chemistry of low- and intermediate-Btu gas mixtures: CO-H/sub 2/ flame kinetics
CO/H/sub 2/ flames with CO/sub 2/ and N/sub 2/ as diluents and with compositions representative of low- and intermediate-Btu coal gases have been probed at pressures ranging from 76 to 145 torr, using both stoichiometric and ten percent excess air. Maximum flame temperatures ranged from 1500 to 2020/sup 0/K (corrected). Composition profiles have been obtained using a quartz microprobe sampler and mass spectrometer chemical analysis. Concentration profile data were combined with measured temperature profiles and transport data to obtain stable species net reaction rates. Analysis of the reaction rates has yielded stable species global reaction rate expressions. Comparison with published results indicate the controlling reaction in the CO combustion is CO + OH ..-->.. CO/sub 2/ + H. The H/sub 2/ controlling combustion reaction appears to be H/sub 2/ + OH ..-->.. H/sub 2/O + H. Flame lengths based on completion of the stable species reactions are also included.
- Research Organization:
- Battelle Columbus Labs., OH (USA)
- DOE Contract Number:
- AC22-76ET10653
- OSTI ID:
- 5518514
- Report Number(s):
- DOE/ET/10653-1; ON: DE82010761
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CARBON MONOXIDE
COMBUSTION KINETICS
HYDROGEN
INTERMEDIATE BTU GAS
COMBUSTION
LOW BTU GAS
AIR
CARBON DIOXIDE
CHEMICAL COMPOSITION
COAL GAS
EXPERIMENTAL DATA
FLAMES
HIGH TEMPERATURE
HYDROXYL RADICALS
LENGTH
LOW PRESSURE
MASS SPECTROSCOPY
NITROGEN
SIMULATION
TEMPERATURE MEASUREMENT
WATER
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DIMENSIONS
ELEMENTS
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
INFORMATION
KINETICS
NONMETALS
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RADICALS
REACTION KINETICS
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
090110* - Hydrocarbon Fuels- Properties- (1979-1989)
400800 - Combustion
Pyrolysis
& High-Temperature Chemistry