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The thermal reactions of ethylene at 500°C in the presence and absence of small quantities of oxygen
Author(s) -
Back M. H.,
Martin R.
Publication year - 1979
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550110708
Subject(s) - chemistry , isomerization , ethylene , oxygen , pyrolysis , photochemistry , reaction mechanism , radical , primary (astronomy) , organic chemistry , catalysis , astronomy , physics
Initial rates of formation of primary products have been measured in the pyrolysis of ethylene at 500°C, and a mechanism for the reaction is proposed based on the isomerization of the n −hexyl radical. Additions of oxygen in amounts less than 0.1% markedly increased the rate of formation of all products, but oxygen was not completely consumed in the reaction. It is shown that secondary initiation processes are important at very low conversions, and butene‐1 is the most reactive product. Bimolecular reactions between olefins and with oxygen are important steps in the mechanism.