Intrinsic kinetics of thiophene hydrodesulfurization on a sulfided NiMo/SiO2 planar model catalyst

被引：40
作者：
Borgna, A [1 ]
Hensen, EJM [1 ]
van Veen, JAR [1 ]
Niemantsverdriet, JW [1 ]
机构：
[1] Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands
来源：
JOURNAL OF CATALYSIS | 2004年 / 221卷 / 02期
关键词：
planar model catalysts; hydrodesulfurization; intrinsic kinetics; NiMO/SiO2; catalyst;
D O I：
10.1016/j.jcat.2003.09.018
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 kinetics of thiophene hydrodesulfurization is studied on a planar surface science model of a sulfided NiMo/SiO2 catalyst under diffusion-limitation-free conditions in a batch reactor at atmospheric pressure and temperatures between 575 and 675 K. A LangmuirHinshelwood model is used to analyze the data and to derive activation energies and heats of adsorption for thiophene and hydrogen sulfide. The work illustrates the feasibility of kinetic and mechanistic studies using planar models of catalysts which can be prepared and manipulated with procedures available in surface science. (C) 2003 Elsevier Inc. All rights reserved.
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页码：541 / 548
页数：8
相关论文
共 36 条
[1]  
BORGNA A, IN PRESS CATAL LETT
[2]   Correlation between hydrodesulfurization activity and order of Ni and Mo sulfidation in planar silica-supported NiMo catalysts: The influence of chelating agents [J].
Coulier, L ;
de Beer, VHJ ;
van Veen, JAR ;
Niemantsverdriet, JW .
JOURNAL OF CATALYSIS, 2001, 197 (01) :26-33
[3]   On the formation of cobalt-molybdenum sulfides in silica-supported hydrotreating model catalysts [J].
Coulier, L ;
de Beer, VHJ ;
van Veen, JAR ;
Niemantsverdriet, JW .
TOPICS IN CATALYSIS, 2000, 13 (1-2) :99-108
[4]   On the flexibility of the active phase in hydrotreating catalysts [J].
Eijsbouts, S .
APPLIED CATALYSIS A-GENERAL, 1997, 158 (1-2) :53-92
[5]   REACTIVITIES, REACTION NETWORKS, AND KINETICS IN HIGH-PRESSURE CATALYTIC HYDROPROCESSING [J].
GIRGIS, MJ ;
GATES, BC .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1991, 30 (09) :2021-2058
[6]   Surface science approach to modeling supported catalysts [J].
Gunter, PLJ ;
Niemantsverdriet, JW ;
Ribeiro, FH ;
Somorjai, GA .
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1997, 39 (1-2) :77-168
[7]   Periodic trends in hydrotreating catalysis:: Thiophene hydrodesulfurization over carbon-supported 4d transition metal sulfides [J].
Hensen, EJM ;
Brans, HJA ;
Lardinois, GMHJ ;
de Beer, VHJ ;
van Veen, JAR ;
van Santen, RA .
JOURNAL OF CATALYSIS, 2000, 192 (01) :98-107
[8]   Kinetics and mechanism of thiophene hydrodesulfurization over carbon-supported transition metal sulfides [J].
Hensen, EJM ;
Vissenberg, MJ ;
deBeer, VHJ ;
vanVeen, JAR ;
vanSanten, RA .
JOURNAL OF CATALYSIS, 1996, 163 (02) :429-435
[9]  
Hensen EJM, 1998, NATO ASI 3 HIGH TECH, V60, P169
[10]   HYDRODESULFURIZATION OF THIOPHENE OVER COMO, NIMO, AND NIW/AL2O3 CATALYSTS - KINETICS AND ADSORPTION [J].
IHM, SK ;
MOON, SJ ;
CHOI, HJ .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1990, 29 (07) :1147-1152
1234