A Flow Tube Kinetics Study of Methyl Chloride Oxidation

The fuel-lean oxidation of methyl chloride was investigated using flow tube kinetics experiments coupled with plug and laminar flow models that included detailed reaction chemistry. Acetylene, vinyl chloride, ethylene, methane and CO were observed as the major reaction products at partial conversion...

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Bibliographic Details
Published in:Combustion science and technology 1993-01, Vol.87 (1-6), p.91-107
Main Authors: HUNG, S. L., PFEFFERLE, L. D.
Format: Article
Language:English
Subjects:
Applied sciences
Carbon monoxide
Chlorinated hydrocarbons
Chlorine compounds
Combustion. Flame
Energy
Energy. Thermal use of fuels
Ethylene
Exact sciences and technology
incineration
Laminar flow
Methane
Miscellaneous
Organic compounds
Oxidation
Sensitivity analysis
Theoretical studies. Data and constants. Metering
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Summary:The fuel-lean oxidation of methyl chloride was investigated using flow tube kinetics experiments coupled with plug and laminar flow models that included detailed reaction chemistry. Acetylene, vinyl chloride, ethylene, methane and CO were observed as the major reaction products at partial conversion conditions. A sensitivity analysis combined with a rate of production analysis for key species observed experimentally was used to identify reaction bottlenecks in the initial literature model used. Rates for the CH 2 CL + CH 2 CL and CH 3 + CH 2 CL recombination reactions were estimated using QRRK analysis. The modified model accurately predicted experimental measurements of both methyl chloride conversion and intermediate product species profiles as a function of temperature. Model and experimental results highlight the difference in oxidation pathway between lean and rich conditions. Oxidative pyrolysis speeds CH 3 CL destruction and enhances CH 2 CL production leading to formation of C 2 H 3 CL. C2 production is also enhanced due to the relative difficulty in oxidizing CH 3 CL compared to CH 3 . Both model and experimental results also demonstrate that high destruction levels for lean methyl chloride oxidation can be achieved at moderately high (< 1335 K) temperatures with low residence times (< 16 ms) assuming plug flow and hot wall conditions are maintained.
ISSN:0010-2202
1563-521X
DOI:10.1080/00102209208947209