Methane oxidative coupling on the Au/La2O3/CaO catalyst in the presence of hydrogen peroxide |
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Authors: | I. Eskendirov N. J. Coville V. D. Sokolovskii |
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Affiliation: | (1) Applied Chemistry and Chemical Technology Centre, Witwatersrand University, 2050 WITS Johannesburg, South Africa |
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Abstract: | Methane oxidative coupling in the presence of the catalyst 1% Au/5% La2O3/CaO and gas-phase initiator hydrogen peroxide at the temperature 700–800°C under normal pressure has been studied. It has been shown that hydrogen peroxide remarkably increases the yield of C2+ products without the loss of selectivity. The maximal yield of C2+ products under the conditions studied was 27% with the formation of a noticeable quantity of benzene. It has been proposed, that the observed effect is due to hydroxyl radical formation from hydrogen peroxide, which could be essential under definite conditions also in a conventional catalytic methane oxidative coupling. |
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Keywords: | methane oxidative coupling hydrogen peroxide gas-phase initiation |
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