Kinetics of catalytic reaction between methanol and hydrogen sulfide

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie00048a006· OSTI ID:183062

Mashkin, V Yu; Kudenkov, V M; Mashkina, A V ^[1]

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1. Pr. Akademika Lavrentieva, Novosibirsk (Russian Federation). Boreskov Inst. of Catalysis

Methanol reaction with H{sub 2}S on tungsten- and potassium-promoted alumina was studied in the absence of any diffusional restrictions. The authors have found that on both W/Al{sub 2}O{sub 3} and KW/Al{sub 2}O{sub 3} catalysts methanol reacts with H{sub 2}S to produce methyl mercaptan, which may convert to dimethyl sulfide through either interaction with the second molecule of methanol or disproportionation. Methanol dehydration yields dimethyl ether. For KW/Al{sub 2}O{sub 3} catalyst, the generation of methyl mercaptan dominates. Adsorption data permitted the authors to suggest a mechanism of methanol reaction with H{sub 2}S. According to this mechanism reaction proceeds via the rapid methoxylation of catalyst surface and further interaction of CH{sub 3}O groups with the activated H{sub 2}S, CH{sub 3}SH, and CH{sub 3}OH. The kinetic equations obtained describe fairly well the reaction on the inhomogeneous catalyst surface.

• Sponsoring Organization: USDOE
• OSTI ID: 183062
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 9 Vol. 34; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
ALUMINIUM OXIDES
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DEHYDRATION
DIMETHYL SULFIDE
ETHERS
HYDROGEN SULFIDES
METHANOL
POTASSIUM
SYNTHESIS
THIOLS
TUNGSTEN
USES