Promoting effect of ruthenium on NiMo/Al2O3 hydrotreating catalysts

被引：16

作者：

Cattenot, M

Geantet, C

Glasson, C

Breysse, M

机构：

[1] Inst Rech Catalyse, F-69626 Villeurbanne, France

[2] Univ Paris 06, Lab React Surface, F-75252 Paris 05, France

来源：

APPLIED CATALYSIS A-GENERAL | 2001年 / 213卷 / 02期

关键词：

hydrotreatment; sulfide catalysts; ruthenium sulfide; hydrogenation; TPR; TEM;

D O I：

10.1016/S0926-860X(00)00903-0

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：

Ruthenium (Ru) has been tested as a dopant for NiMo on alumina catalyst. A promotion effect is observed for the hydrodesulfurization (HDS) of dibenzothiophene (DBT), and the hydrogenation (HYD) of tetralin. Maximum activity is obtained at a loading in the range of 0.25-0.5 wt.% Ru added to a NiMo catalyst. Temperature programmed reduction (TPR) acid TEM were used to characterize the catalysts. The possibility to create a mixed decorated site (NiRu)MoS was investigated by varying the Ni/Ru atomic ratio. Substitution of Ni atoms by Ru may explain the promoting effect. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：217 / 224

页数：8

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