RATE COEFFICIENTS OF ELEMENTARY STEPS IN THE INHIBITED OXIDATION OF ETHYLBENZENE, I. INTERACTION BETWEEN PEROXY RADICALS AND INHIBITOR MOLECULES.

J. Lukacs, K. Heberger, D. Gal

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Abstract

The inhibited oxidation of ethylbenzene has been investigated in the presence of 2,6-di-tert-butyl-4-methyl-phenol (ionol). 1-Phenylethyl-hydroperoxide was used as a source of radicals. The time dependence of oxygen consumption was measured at t equals 120 degree C and simulated using a reaction mechanism consisting of 20 elementary steps. Simulation was carried out by changing the value of the rate constant of the reaction. Since the calculated curves are - at a constant rate of initiation - essentially influenced by the value of k//5, simulation is a proper method for its determination. The best fit was achieved at k//5 equals 5 multiplied by (times) 10**51 multiplied by (times) mol** minus **1 s** minus **1. The contribution of the various elementary steps to oxygen consumption has also been determined.

Original languageEnglish
Pages (from-to)606-609
Number of pages4
JournalBerichte der Bunsengesellschaft/Physical Chemistry Chemical Physics
Volume87
Issue number7
DOIs
Publication statusPublished - Jan 1 1983

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ASJC Scopus subject areas

  • Chemical Engineering(all)

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