Effect of the Composition of a Mixture and the Conditions of Mechanical Activation on the Physicochemical and Catalytic Properties of Carbide-Containing Catalysts
Catalysis in Industry
, E-ISSN: 2070-0555
||mechanical activation, molybdenum carbide, carbon, hydrodesulfurization
Vasilevich A. V.
Baklanova O. N.
Lavrenov A. V.
Muromtsev I. V.
Likholobov V. A.
Institute of Hydrocarbon Processing, Siberian BranchRussian Academy of SciencesOmskRussia
Dostoevsky State UniversityOmskRussia
Omsk State Technical University
The effect of the composition of a dry mix containing molybdenum oxide, carbon, and reducing
metal (Zn or Al) on the formation of molybdenum carbides during the mechanical activation (MA) of the
mixture is studied. The phase composition of the mechanically activated samples is studied via Xray phase
analysis (XPA). The optimum formulation of the mixture and the MA modes ensuring a yield of highly dis
persed carbidecontaining catalyst with Mo2C + Al2O3 composition are determined. It is shown that the
composition of the medium (air or argon) has no appreciable effect on the phase composition of the target
product (molybdenum carbide). Catalytic testing of carbidecontaining catalyst in the reaction of hydrodes
ulfurization of dibenzothiophene (DBT) is conducted, and it is established that this catalyst exhibits high
activity and selectivity: at 320°C, the conversion of DBT is 92.8% and the content of cycloalkanes is 88.3%.
The obtained results can be used to create an industrial zerowaste technological process for the production
of molybdenum carbide