Study of the Oscillatory Process of Hydrogen Oxidation in the Presence of Sulfur Dioxide Gas
E. M. Makaryan, A. A. Arutyunyan
Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Armenia, Yerevan, Armenia
Keywords: hydrogen oxidation, sulfur dioxide, sulfur, light emission
Abstract
A study of hydrogen oxidation in the presence of sulfur dioxide was conducted in an oscillatory mode. It was found that this process occurs via a degenerate chain mechanism, with sulfur oxide (SO), the primary product of sulfur dioxide conversion, playing a significant role. It was shown that the hydrogen oxidation reaction in the presence of sulfur dioxide in the autoignition region under certain conditions (pressure, temperature, gas mixture composition, contact time) proceeds explosively and is accompanied by light emission. A comparison of experimental data on hydrogen oxidation in the presence of sulfur dioxide with the results of calculations using the proposed model of the process under study revealed good agreement. Based on the calculation results, the effective activation energy of the reaction was determined to be 9 200 J/mol.
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