Gas-phase thiophene hydrogenation to tetrahydrothiophene over sulfide catalysts

被引：26
|
作者：
Mashkina, AV [1 ]
Sakhaltueva, LG [1 ]
机构：
[1] Russian Acad Sci, Siberian Div, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
来源：
KINETICS AND CATALYSIS | 2002年 / 43卷 / 01期
关键词：
D O I：
10.1023/A:1014213515975
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Thiophene hydrogenation to tetrahydrothiophene over supported transition metal sulfides is studied. Comparison of the atomic catalytic activity at T = 240 degreesC and P = 2 MPa showed that aluminosilicate-supported PdS is one to two orders of magnitude more active than Rh, Ru, Mo, W, Re, Co, and Ni sulfides on various supports. These metal sulfides are arranged in the following series according to the rate of tetrahydrothiophene formation: Pd >> Mo > Rh greater than or equal to Ru > Re > W > Co > Ni. The reaction over sulfide catalysts is assumed to occur through thiophene activation on proton centers and coordinatively unsaturated cations of metal sulfides and additionally on the proton centers of support in the case of palladium catalysts.
引用
收藏
页码：107 / 114
页数：8
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