The Features of the Catalytic Synthesis of Methanethiol from Dimethyl Sulfide Full article
Journal |
Petroleum Chemistry
ISSN: 0965-5441 , E-ISSN: 1531-8532 |
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Output data | Year: 2009, Volume: 49, Number: 5, Pages: 420-426 Pages count : 7 DOI: 10.1134/S0965544109050168 | ||
Tags | MeSH; Petroleum Chemistry; Dimethyl Sulfide; Methanethiol; Alumina Catalyst | ||
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Abstract:
The characteristic features of methanethiol synthesis from dimethyl sulfide and H2S in the presence of Al2O3 at atmospheric pressure and T = 320–500°C have been studied. It has been shown that the yield of methanethiol increases with an increase in the temperature, the H2S-to-dimethyl sulfide ratio, and the contact time, attaining equilibrium values. The methanethiol formation rate is proportional to the dimethyl sulfide partial pressure raised to a power of 0.4 and the H2S partial pressure raised to a power of 0.8. An increase in the specific surface area and the volume of transport pores and a decrease in the particle sizes of Al2O3 facilitate the augmentation of the catalyst activity in methanethiol formation. At T ∼ 400°C, a low H2S concentration, and a long contact time, the side reaction of dimethyl sulfide cracking occurs to result in the release of methane and the deposition of sulfur-containing and carbonaceous compounds on the surface, which lower the activity of alumina. The deactivated catalyst can be regenerated by oxidation.
Cite:
Mashkina A.V.
The Features of the Catalytic Synthesis of Methanethiol from Dimethyl Sulfide
Petroleum Chemistry. 2009. V.49. N5. P.420-426. DOI: 10.1134/S0965544109050168 WOS Scopus РИНЦ
The Features of the Catalytic Synthesis of Methanethiol from Dimethyl Sulfide
Petroleum Chemistry. 2009. V.49. N5. P.420-426. DOI: 10.1134/S0965544109050168 WOS Scopus РИНЦ
Original:
Машкина А.В.
Закономерности каталитического синтеза метилмеркаптана из диметилсульфида
Нефтехимия. 2009. Т.49. №5. С.441-447. РИНЦ
Закономерности каталитического синтеза метилмеркаптана из диметилсульфида
Нефтехимия. 2009. Т.49. №5. С.441-447. РИНЦ
Dates:
Submitted: | May 29, 2008 |
Published print: | Sep 1, 2009 |
Published online: | Oct 10, 2009 |
Identifiers:
Web of science | WOS:000270721600016 |
Scopus | 2-s2.0-70349865226 |
Elibrary | 15305618 |
OpenAlex | W2094846133 |