Support effects in high temperature Fischer-Tropsch synthesis on iron catalysts

被引：103

作者：

Cheng, K. ^{[2
]}

Ordomsky, V. V. ^{[1
]}

Virginie, M. ^{[1
]}

Legras, B. ^{[1
]}

Chernavskii, P. A. ^{[3
]}

Kazak, V. O. ^{[3
]}

Cordier, C. ^{[4
]}

Paul, S. ^{[1
]}

Wang, Ye ^{[2
]}

Khodakov, A. Y. ^{[1
]}

机构：

[1] Univ Lille 1, ENSCL EC Lille, Unite Catalyse & Chim Solide, UMR CNRS 8181, F-59655 Villeneuve Dascq, France

[2] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[3] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[4] Univ Lille 1 Sci & Technol, UMR 8207, Unite Mat & Transformat, F-59655 Villeneuve Dascq, France

来源：

APPLIED CATALYSIS A-GENERAL | 2014年 / 488卷

基金：

中国国家自然科学基金;

关键词：

Syngas; Fischer-Tropsch synthesis; Iron; Carbon materials; CARBON NANOTUBES; LOWER OLEFINS; ACTIVATED CARBONS; MAGNETITE NANOPARTICLES; SYNTHESIS GAS; SIZE; PARTICLES; NITROGEN; CHEMISTRY; OXIDATION;

D O I：

10.1016/j.apcata.2014.09.033

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 paper addresses the effects of silica and carbon supports on the structure and catalytic performance of iron catalysts for high temperature Fischer-Tropsch synthesis. Iron phase composition and dispersion in both calcined and activated catalysts were strongly affected by the support. Hematite was the major iron phase in calcined silica supported catalysts, while carbon supported counterparts contain magnetite. Catalyst activation in carbon monoxide leads to carbidisation of iron oxides to principally Haag iron carbide. Higher Fischer-Tropsch reaction rates were observed on carbon supported iron catalysts compared to silica supported counterparts. The catalytic performance principally depended on iron phase composition rather than on iron dispersion. Iron catalysts supported on carbon nanotubes and activated carbon showed highest activity in Fischer-Tropsch, which could be attributed to the formation of composites of iron carbide and residual magnetite. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：66 / 77

页数：12

共 63 条

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