Comparing the hydrodesulfurization reaction of thiophene on γ-Al2O3 supported CoMo, NiMo and NiW sulfide catalysts

被引：12
|
作者：
Gonzalez-Cortes, Sergio L. [1 ,2 ]
机构：
[1] Oxford Catalysts Co, Oxford OX14 4RZ, England
[2] Univ Los Andes, Fac Ciencias, Lab Cinet & Catalisis, Dept Quim, Merida 5101, Venezuela
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 2009年 / 97卷 / 01期
关键词：
Co (or Ni)-promoter effect; Hydrodesulfurization reaction; Thiophene; Combustion method; HYDROTREATING CATALYSTS; DEEP DESULFURIZATION; COBALT; MOS2; WS2;
D O I：
10.1007/s11144-009-0008-2
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 thiophene hydrodesulfurization (HDS) reaction on gamma-Al2O3 supported CoMo, NiMo and NiW sulfide catalysts was compared in order to gain insight into the promoter effect on direct desulfurization (DDS) and hydrogenation (HYD) pathways. Ni-promoted Mo (or W) sulfide catalysts favor the hydrogen transfer reactions relative to CoMo sulfide catalyst, which facilitates the direct route instead. This different performance and also the dependence of the apparent Arrhenius parameters with the catalyst formulation were attributed to the major participation of Mo (or W) edge for the Ni-containing catalysts and S edge for CoMo sulfide catalyst upon the thiophene-HDS reaction.
引用
收藏
页码：131 / 139
页数：9
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