TiO2-supported Mo model catalysts:: Ti as promoter for thiophene HDS?

被引：35

作者：

Coulier, L ^{[1
]}

van Veen, JAR ^{[1
]}

Niemantsverdriet, JW ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands

来源：

CATALYSIS LETTERS | 2002年 / 79卷 / 1-4期

关键词：

hydrodesulfurization; X-ray photoelectron spectroscopy (XPS); thiophene; TiO(2); sulfidation; molybdenum;

D O I：

10.1023/A:1015312509749

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 combination of thiophene hydrodesulfurization (HDS) activity measurements and X-ray photoelectron spectroscopy on flat model systems of sulfided HDS Mo catalysts showed that sulfided Ti-species can act as a promoter in the same way as Co and Ni, although less effectively. This explains the higher thiophene HDS activity and hydrogenation selectivity of Mo/TiO(2) compared with Mo/Al(2)O(3), while for Ni-promoted Mo catalysts the difference between the two supports is negligible.

引用

页码：149 / 155

页数：7

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