Regularities of the formation of cool-flame oxidation products of rich propane-oxygen mixtures in a two-section reactor

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Abstract

The effect of the ratio of the reagents on a stabilized cool flame of rich propane-oxygen mixtures is investigated. It was found that with an increase in the initial concentration of propane in the mixture, its consumption, as well as the concentration of propylene, has a maximum a ratio of C3H8 : O2 = 1 : 1. In this case, the selectivity of propylene formation reaches a maximum a ratio of C3H8 : O2 = 4 : 1. It is shown that an increase in the initial propane concentration in the mixture increases the yield of methane, but reduces the yield of propylene, ethylene, hydrogen, CO, CO2, methanol, formaldehyde and acetaldehyde. At a ratio of C3H8 : O2 = 6 : 1, ethane was also found in the reaction products. The possibility of ethanol formation in the reactions of ethoxyl and hydroxyethyl radicals with acetaldehyde has been analyzed using the CBS-QB3 quantum-chemical method.

About the authors

N. M. Poghosyan

Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Republic of Armenia

Email: strekova@bk.ru
Armenia, Yerevan

M. Dj. Poghosyan

Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Republic of Armenia

Email: strekova@bk.ru
Armenia, Yerevan

A. H. Davtyan

Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Republic of Armenia

Email: strekova@bk.ru
Armenia, Yerevan

S. D. Arsentev

Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Republic of Armenia

Email: strekova@bk.ru
Armenia, Yerevan

L. N. Strekova

Semenov Federal Research Center for Chemical Physics of Russian Academy of Sciences

Author for correspondence.
Email: strekova@bk.ru
Russian Federation, Moscow

V. S. Arutyunov

Semenov Federal Research Center for Chemical Physics of Russian Academy of Sciences

Email: strekova@bk.ru
Russian Federation, Moscow

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