The modification of SiO2 by various organic groups and its influence on the properties of cobalt-based catalysts for Fischer-Tropsch synthesis

被引：27

作者：

Shi, Lihong ^{[1
,2
]}

Li, Debao ^{[1
]}

Hou, Bo ^{[1
]}

Wang, Yuelun ^{[1
,3
]}

Sun, Yuhan ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Peoples R China

[2] Shanxi Univ, Sch Chem & Chem Engn, Taiyuan 030006, Peoples R China

[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

FUEL PROCESSING TECHNOLOGY | 2010年 / 91卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Fischer-Tropsch synthesis; Organic modification; Cobalt catalysts; CO/SIO2; CATALYST; SUPPORT; HYDROGENATION; DISPERSION; MCM-41;

D O I：

10.1016/j.fuproc.2009.06.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

SiO2 was modified by various organic groups before the impregnation of cobalt precursor. These modified supports and the corresponding catalysts were characterized by BET, Si-29 CP MAS NMR, XRD, Raman, XPS and H-2-TPR. These characterizations clearly show the changes of morphology as well as reducibility of the catalysts. The organic modification of SiO2 remarkably influences the reducibility and catalytic properties of Co catalysts. Co catalyst supported on (CH3)(3)-modified SiO2 exhibits high activity and C-5(+) hydrocarbon selectivity. However, COOH-, NH2-, and NH2(CH2)(2)NH-modified SiO2 distinctly suppress the catalytic activity of Co catalysts. (C) 2009 Published by Elsevier B.V.

引用

页码：394 / 398

页数：5

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