Aromatics oxidation and soot formation in flames
The research reported here is concerned with the kinetics and mechanisms of aromatics oxidation and soot formation in flames. The scope includes detailed measurements of profiles and stable and radical species concentrations and soot-particle number concentration and size distribution through the reaction zone of low-pressure flat premixed flames. Intermediate species identifications and net reaction rates calculated from the profile measurements are used to test postulated reaction mechanisms. The aromatics oxidation work is focused mainly on benzene, and the soot formation work is primarily concerned with the particle inception or nucleation stage. Particular objectives are to identify and to determine rate constants for the main benzene oxidation reactions in flames, and to characterize the soot precursor species and the mechanisms and kinetics of the transition from molecules to nascent soot particles. To these ends stable and radical species concentrations and soot particle size and concentrations are measured as functions of distance or time through the reaction zone of low-pressure premixed flat flames. From the data, net reaction rates are calculated and possible reaction mechanisms are identified and subjected to critical testing and kinetics evaluation. 64 refs., 29 figs., 3 tabs.
- Research Organization:
- Massachusetts Inst. of Tech., Cambridge, MA (USA). Dept. of Chemical Engineering
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-84ER13282
- OSTI ID:
- 7107737
- Report Number(s):
- DOE/ER/13282-7; ON: DE90008950
- Country of Publication:
- United States
- Language:
- English
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Aromatics oxidation and soot formation in flames
Aromatics oxidation and soot formation in flames. Progress report, August 15, 1990--August 14, 1993
Related Subjects
400201 -- Chemical & Physicochemical Properties
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
AROMATICS
BENZENE
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
COMPUTERIZED SIMULATION
CONDENSED AROMATICS
DATA ANALYSIS
DOCUMENT TYPES
FLAMES
HYDROCARBONS
KINETICS
NUCLEATION
ORGANIC COMPOUNDS
OXIDATION
PROGRESS REPORT
PYRENE
REACTION KINETICS
SIMULATION
SOOT
TEMPERATURE MEASUREMENT
THERMOCHEMICAL PROCESSES