Abstract
The subject of our investigations was the oxidation process of methane to organic oxygenates. The catalytic system proposed by us in which palladium occurs in the form of palladium powder dissolved in oleum has not been described up to now. Methanol was obtained by the transformation of methane into methyl bisulfate. Subsequently, methanol was formed as a result of ester hydrolysis. The reaction temperature was varied in the range of 70–190°C; the time was changed from 1 to 20 h. The reaction products were carbon dioxide, methanol, and traces of formaldehyde. We found that the rate of ester formation depends on the partial pressure of methane, the concentration of free sulfur trioxide in sulfuric acid, and the concentration of ester itself in the reaction mixture. An equation for the rate of formation of the methyl bisulfate was proposed. The rate constants were determined by Marquardt's method.
Published Version
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