Oxidation/pyrolysis chemistry as related to fuel-sooting tendencies
Technical Report
·
OSTI ID:6159868
Relationships between flow reactor derived chemical mechanisms and the macroscopically observed sooting tendencies in premixed and diffusion flames are developed. In particular, the impact of elements of the mechanism for the oxidation of benzene/phenyl radical on the inhibition of soot formation through the removal of a critical precursor is explored. Pyrolysis chemistry, especially those aspects altered by small amounts of oxygen, is related to the increased precursor concentration that is responsible for the augmented soot formation in ethene diffusion flames with oxygen added to the fuel stream. Flow-reactor data from ethene pyrolysis studies (with and without small amounts of added oxygen), demonstrating the enhanced production of acetylene and butadiene, are presented in support of some of the developed relationships between sooting phenomenology and chemical mechanisms.
- Research Organization:
- Princeton Univ., NJ (USA). Dept. of Mechanical and Aerospace Engineering
- OSTI ID:
- 6159868
- Report Number(s):
- AD-A-201826/5/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ACETYLENE
ALKYNES
AROMATICS
ARYL RADICALS
AUGMENTATION
BENZENE
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DIFFUSION
ELEMENTS
FLAMES
FUELS
HYDROCARBONS
INHIBITION
MIXING
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXYGEN
PHENYL RADICALS
PRODUCTION
PYROLYSIS
RADICALS
SOOT
STREAMS
SURFACE WATERS
THERMOCHEMICAL PROCESSES
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ACETYLENE
ALKYNES
AROMATICS
ARYL RADICALS
AUGMENTATION
BENZENE
CHEMICAL REACTIONS
CHEMISTRY
DECOMPOSITION
DIFFUSION
ELEMENTS
FLAMES
FUELS
HYDROCARBONS
INHIBITION
MIXING
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXYGEN
PHENYL RADICALS
PRODUCTION
PYROLYSIS
RADICALS
SOOT
STREAMS
SURFACE WATERS
THERMOCHEMICAL PROCESSES