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Effect of a mixture composition and conditions of mechanical activation on physico-chemical and catalytic properties of carbide-containing catalysts
https://doi.org/10.18412/1816-0387-2015-1-12-17
Abstract
Molybdenum carbides were synthesized by mechanical activation (MA) of a charge consisting of molybdenum oxide, carbon, and a reducing metal (Zn or Al). The influence of the composition of the charge on the process characteristics was studied. The phase composition of mechanically activated samples was investigated by X-ray diffraction analysis. The optimal MA modes and the mixture composition were determined, providing the production of a highly dispersed carbidecontaining catalyst with the composition of Mo2C+Al2O3. It was shown that the process environment (air, argon) has no significant effect on the phase composition of the target product — molybdenum carbide. The carbide-containing catalyst was tested in hydrodesulfurization of dibenzothiophene (DBT). It was found that this catalyst shows a high activity and selectivity: at 320 °C, the conversion of DBT was 92,8 % with the selectivity toward cycloalkanes of 88,3 %. These results can be used to design an industrial waste-free technology for the production of molybdenum carbide.
About the Authors
A. V. Vasilevich
Institute of Hydrocarbon Processing, SB RAS , Omsk
Russian Federation
Russian Federation
O. N. Baklanova
Institute of Hydrocarbon Processing, SB RAS , Omsk
Russian Federation
Russian Federation
A. V. Lavrenov
Institute of Hydrocarbon Processing, SB RAS , Omsk
Russian Federation
Russian Federation
I. V. Muromtsev
Institute of Hydrocarbon Processing, SB RAS , Omsk
Russian Federation
Russian Federation
V. A. Likholobov
Institute of Hydrocarbon Processing, SB RAS , Omsk
Omsk F. M. Dostoevsky State University, Omsk
Omsk State Technical University
Russian Federation
Russian Federation
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Review
For citations:
Vasilevich A.V., Baklanova O.N., Lavrenov A.V., Muromtsev I.V., Likholobov V.A. Effect of a mixture composition and conditions of mechanical activation on physico-chemical and catalytic properties of carbide-containing catalysts. Kataliz v promyshlennosti. 2015;(1):12-17. (In Russ.) https://doi.org/10.18412/1816-0387-2015-1-12-17
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