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Modified reaction mechanism of aerated n-dodecane liquid flowing over heated metal tubesThe degradation mechanism of the n-dodecane was studied using a modified jet fuel thermal oxidation tester containing a sample withdrawal system as a reaction vessel. The reaction products were identified using gas chromatography and mass spectorometry. The soluble products were found to consist mainly of C5-C10 n-alkanes and 1-alkenes, C7-C10 aldehydes, tetrahydrofuran derivatives, dodecanol and dodecanone isomers, dodecyl hydroperoxide (ROOH) decomposition products, and C24 alkane isomers. The data from the experiments agreed with those of Hazlett et al. (1977). It was found that alkyl peroxide radical reactions dominate in the autooxidation temperature regime (at T not above 300 C); the dominant path is for the alkyl peroxyl radical to react bimolecularly with fuel to yield primarily alkyl hydroperoxides. The alkyl peroxide radical also undergoes self-termination and unimolecular isomerization and decomposition reactions, to yield smaller amounts of C12 alcohol plus ketone products and tetrahydrofuran derivatives, respectively.
Document ID
19880057041
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Reddy, K. T. (Drexel Univ. Philadelphia, PA, United States)
Cernansky, N. P. (Drexel University Philadelphia, PA, United States)
Cohen, R. S. (Temple University Philadelphia, PA, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Publication Information
Publication: Journal of Energy and Fuels
Volume: 2
Issue: 2 19
ISSN: 0887-0624
Subject Category
PROPELLANTS AND FUELS
Funding Number(s)
CONTRACT_GRANT: NAG3-183
Distribution Limits
Public
Copyright
Other