Direct synthesis of methyl mercaptan from H2/CO/H2S using tungsten based supported catalysts: Investigation of the active phase

被引：19
作者：
Cordova, A. [1 ]
Blanchard, P. [1 ]
Salembier, H. [1 ,2 ]
Lancelot, C. [1 ]
Fremy, G. [2 ]
Lamonier, C. [1 ]
机构：
[1] Univ Lille 1 Sci & Technol, CNRS UMR 8181, Unite Catalyse & Chim Solide, F-59655 Villeneuve Dascq, France
[2] Grp Rech Lacq, RD 817-BP 34, F-64170 Lacq, France
来源：
CATALYSIS TODAY | 2017年 / 292卷
关键词：
Methylmercaptan; KW-based catalysts; Potassium tetrathiotungstate; Potassium intercalated phase; 1T-WS2; phase; XPS of sulfide catalyst; MO-BASED CATALYSTS; HIGH H2S-CONTAINING SYNGAS; METHANETHIOL SYNTHESIS; HYDROGEN EVOLUTION; CARBONYL SULFIDE; AQUEOUS-SOLUTION; H2S-RICH SYNGAS; TETRAALKYLAMMONIUM THIOMOLYBDATES; K2MOS4/SIO2; CATALYST; K2MOO4;
D O I：
10.1016/j.cattod.2016.10.032
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
K2WO4 and K2WS4 were used as precursors for the preparation of alumina, silica and hydroxyapatite supported catalysts whose catalytic performance have been evaluated in the direct reaction of syngas with hydrogen sulfide to produce methyl mercaptan. The solids were characterized using specific surface area measurements, Raman, XRD and X-rays Photoelectrons Spectroscopy, before and after activation (sulfidation). Catalytic performances were correlated to the formation of a KxWS2 phase, evidenced by Raman and XPS, where potassium is assumed to be intercalated in the 1T-WS2 layered phase. Alumina supported catalyst containing high surface concentration of this phase was the most efficient with a CH3SH productivity reaching 72gh(-1) L-1. (C) 2016 Elsevier B.V. All rights reserved.
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收藏
页码：143 / 153
页数：11
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