Kinetic Analysis of the Influence of Sulfur Dioxide on the Oxidative Conversion of Methane and Hydrogen in a Wide Range of Temperatures
A. A. Mantashyan, E. M. Makaryan
Nalbandyan Institute of Chemical Physics, National Academy of Sciences of Armenia, Yerevan 0014, Armenia
Keywords: sulfur dioxide, oxidative conversion, hydrogen, methane, atoms, free radicals
Abstract
The effect of SO2 on the oxidative conversion of hydrogen and methane over a wide range of temperatures of 400 ÷ 1 500 oC at a pressure of the reacting mixture of 1 atm has been studied by numerical kinetic analysis. The analysis has shown that sulfur dioxide can have both accelerating and inhibitory effects on the oxidative conversion of hydrogen and methane, which is due to the participation of SO2 and the products of its chemical transformation in conjugated processes. The accelerating effect of SO2 on the oxidative conversion of hydrogen and methane is observed at low temperatures, and the decelerating effect at elevated temperatures.
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