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Deactivation of Molybdenum-Containing Zeolites in the Course of Nonoxidative Methane Conversion |
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| Authors: | A V Vosmerikov G V Echevskii L L Korobitsyna Ya E Barabashin N V Arbuzova E G Kodenev S P Zhuravkov |
| Institution: | (1) Institute of Petroleum Chemistry, Siberian Division, Russian Academy of Sciences, Tomsk, 634055, Russia;(2) Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia;(3) Institute of Strength Physics and Materials Science, Siberian Division, Russian Academy of Sciences, Tomsk, 634055, Russia |
| Abstract: | It was found that the nonoxidative dehydroaromatization of methane occurs over Mo-containing pentasil-type zeolites with various framework compositions at 750°C. This reaction is accompanied by catalyst deactivation because of coke formation. The effects of the space velocity of methane and the composition of the zeolite matrix on the amount and properties of the resulting condensation products were studied. It was found that the lowest amount of coke with a relatively low degree of polycondensation was formed on zeolite with SiO2/Al2O3 = 40 containing Mo nanoparticles. |
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