Hydrodesulfurization of tetrahydrothiophene over evaporated Mo, Co and Mo-Co model catalysts

被引：4

作者：

Fujikawa, T

Ribeiro, FH

Somorjai, GA

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] EO Lawrence Berkeley Natl Lab, Div Mat Sci, Ctr Adv Mat, Berkeley, CA 94720 USA

来源：

CATALYSIS LETTERS | 1999年 / 63卷 / 1-2期

关键词：

hydrodesulfurization of tetrahydrothiophene; Mo model catalyst; Co model catalyst; Mo-Co model catalyst; hydrodesulfurization over Mo; hydrodesulfurization over Co; hydrodesulfurization over Mo-Co;

D O I：

10.1023/A:1019048417140

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：

The hydrodesulfurization (HDS) of tetrahydrothiophene was studied over model catalysts prepared by deposition of Co and Mo thin films on a stainless-steel foil covered with graphite. There are three main findings: (1) the nominal turnover rate for the HDS reaction is approximately constant and independent of the Co to Mo ratio, (2) the main product was 1,3-butadiene for cobalt and 1,3-butadiene and 1-butene for molybdenum, and (3) the reaction is not poisoned by sulfur. The surfaces were characterized by Auger electron spectroscopy (AES) before and after reaction. The reactions were carried out under 2.6 kPa of tetrahydrothiophene and 100 kPa of H-2 at 613 K.

引用

页码：21 / 26

页数：6

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[1] NEW INSTRUMENTATION AND TECHNIQUES TO MONITOR CHEMICAL SURFACE-REACTIONS ON SINGLE-CRYSTALS OVER A WIDE PRESSURE RANGE (10-8-105 TORR) IN SAME APPARATUS [J].