Magnesia-supported Mo, CoMo and NiMo sulfide catalysts prepared by nonaqueous impregnation:: parallel HDS/HDN of thiophene and pyridine and TEM microstructure

被引：26

作者：

Cinibulk, J

Kooyman, PJ

Vít, Z

Zdrazil, M

机构：

[1] Acad Sci Czech Republ, Inst Chem Proc Fundamentals, CR-16502 Prague 6, Czech Republic

[2] Natl Ctr High Resolut Electron Microscopy, NL-2628 AL Delft, Netherlands

来源：

CATALYSIS LETTERS | 2003年 / 89卷 / 1-2期

关键词：

sulfide catalysts; MgO support; hydrodesulfurization; hydrodenitrogenation; TEM/HREM;

D O I：

10.1023/A:1024748232539

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：

MgO-supported Mo, CoMo and NiMo sulfide catalysts were prepared by impregnation using slurry MoO3/methanol and solutions of Ni and Co nitrates in methanol. The catalysts exhibited very high hydrodesulfurization activity and low hydrodenitrogenation activity in competitive reactions of thiophene and pyridine. The promotion effect for HDS of Ni and Co was higher for our MgO-supported MoS2 catalysts than for conventional Al2O3-supported catalysts. The specific features in the TEM images of MgO-supported catalysts as compared to conventional Al2O3-supported catalysts were fairly broad MoS2 slab length distribution and the presence of unusually long MoS2 slabs.

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页码：147 / 152

页数：6

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