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The peculiarities of N2O activation over oxides of alkali-earth metals in the oxidative coupling of methane |
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| Authors: | AG Anshits EV Kondratenko NG Maksimov |
| Affiliation: | a Department of Chemistry, Krasnoyarsk State Technical University, Kirenskii Str. 26, Krasnoyarsk, 660074, Russia b Institute of Chemistry of Natural Organic Materials, K. Marx Str. 42, 660049, Krasnoyarsk, Russia |
| Abstract: | The catalytic properties of Na/CaO with a low amount of alkali promoter and SrO were studied under comparable conditions, using CH4-O2 and CH4-N2O reaction mixtures. CH4 conversion was similar for both oxidants ( <5%). Nitrous oxide was shown to be more active and selective oxidant than oxygen. It was noted that molecular oxygen influenced the rate of N2O decomposition over SrO, while for Na/CaO catalysts such effect was not observed. Two different schemes for N2O decomposition over catalysts studied were found. Carbon dioxide decreases the production of ethane over SrO when N2O is used as an oxidant. |
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