Abstract
The hydrogenolysis of dimethyl disulfide in the presence of Ni,Mo and Co,Mo bimetallic sulfide catalysts was studied at atmospheric pressure and T = 160–400°C. At T ≤ 200°C, dimethyl disulfide undergoes hydrogenolysis at the S-S bond, yielding methanethiol in 95–100% yield. The selectivity of the reaction decreases with increasing residence time and temperature due to methanethiol undergoing condensation to dimethyl disulfide and hydrogenolysis at the C-S bond to yield methane and hydrogen sulfide. The specific activity of the Co,Mo/Al2O3 catalyst in hydrogenolysis at the S-S and C-S bonds is equal to or lower than the total activity of the monometallic catalysts. The Ni,Mo/Al2O3 catalyst is twice as active as the Ni/Al2O3 + Mo/Al2O3 or the cobalt-molybdenum bimetallic catalyst.
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Original Russian Text © A.V. Mashkina, L.N. Khairulina, 2007, published in Kinetika i Kataliz, 2007, Vol. 48, No. 1, pp. 132–138.
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Mashkina, A.V., Khairulina, L.N. Hydrogenolysis of dimethyl disulfide in the presence of bimetallic sulfide catalysts. Kinet Catal 48, 125–131 (2007). https://doi.org/10.1134/S0023158407010168
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DOI: https://doi.org/10.1134/S0023158407010168