Effect of cobalt introduction order over Co/SiO2 sol-gel catalysts for Fischer-Tropsch synthesis

被引：3

作者：

Wang, Yuelun ^{[1
,2
]}

Hou, Bo ^{[2
]}

Li, Debao ^{[2
]}

Chen, Jiangang ^{[2
]}

Sun, Yuhan ^{[2
,3
]}

机构：

[1] China Univ Min & Technol, Sch Chem Engn, Xuzhou, Jiangsu, Peoples R China

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

[3] Shanghai Adv Res Inst, Shanghai 201203, Peoples R China

来源：

REACTION KINETICS MECHANISMS AND CATALYSIS | 2012年 / 106卷 / 01期

关键词：

Cobalt catalyst; Fischer-Tropsch synthesis; Ethylenediamine; Sol-gel method; SUPPORTED CATALYSTS; REDUCIBILITY;

D O I：

10.1007/s11144-012-0431-7

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：

Sol-gel Co/SiO2 catalysts were prepared using Co-en (ethylenediamine) complex precursors with different cobalt introduction order. More highly reduced catalysts were obtained by gelling the silica support followed by depositing cobalt nanoparticles on silica surface, and then catalysts exhibited higher FT activity and concomitant higher C18+ selectivity. Meanwhile, both series of catalysts prepared with en/Co molar ratio of 2/1 exhibited higher activity due to their high cobalt reduction.

引用

页码：217 / 224

页数：8

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