Intrinsic thiophene hydrodesulfurization kinetics of a sulfided NiMo/SiO2 model catalyst:: volcano-type behavior

被引：16

作者：

Borgna, A ^{[1
]}

Hensen, EJM ^{[1
]}

Coulier, L ^{[1
]}

de Croon, MHJM ^{[1
]}

Schouten, JC ^{[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 | 2003年 / 90卷 / 3-4期

关键词：

model catalysts; hydrodesulfurization; intrinsic kinetics; NiMo/SiO2; catalyst;

D O I：

10.1023/B:CATL.0000004106.02254.b4

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：

A realistic planar model of a silica-supported NiMo sulfide hydrotreating catalyst was used to study the intrinsic kinetics of thiophene hydrodesulfurization over a broad temperature range at atmospheric pressure. The specific nonporous nature of the model catalysts excludes possible diffusion limitations, which are commonly encountered in kinetic studies of their industrial porous analogues. The unique possibility to measure the intrinsic chemical kinetics over a large temperature range allowed us to observe a Volcano-type behavior for thiophene hydrodesulfurization. The specific kinetic parameters are discussed in terms of possible mechanisms.

引用

页码：117 / 122

页数：6

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