Poisoning of cobalt catalyst used for Fischer-Tropsch synthesis

被引：30

作者：

Sparks, Dennis E. ^{[1
]}

Jacobs, Gary ^{[1
]}

Gnanamani, Muthu Kumaran ^{[1
]}

Pendyala, Venkat Ramana Rao ^{[1
]}

Ma, Wenping ^{[1
]}

Kang, Jungshik ^{[1
]}

Shafer, Wilson D. ^{[1
]}

Keogh, Robert A. ^{[1
]}

Graham, Ursula M. ^{[1
]}

Gao, Pei ^{[1
]}

Davis, Burtron H. ^{[1
]}

机构：

[1] Univ Kentucky, Ctr Appl Energy Res, Lexington, KY 40511 USA

来源：

CATALYSIS TODAY | 2013年 / 215卷

关键词：

Cobalt catalyst; Fischer-Tropsch synthesis; Hydrogen sulfide; Catalyst poison; Threshold poisoning level; SULFUR; DEACTIVATION;

D O I：

10.1016/j.cattod.2013.01.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Sulfur in the form of H2S has been added at various concentration levels during cobalt Fischer-Tropsch synthesis. A steady-state FTS conversion was established prior to adding H2S. At low levels (<500 ppb) H2S addition does not cause a detectable decrease in activity during 5-10 days of exposure to H2S. Above the threshold limit of about 500 ppb, the rate of decrease in CO conversion is linearly related to the H2S concentration in the gas feed. At H2S levels in the 500-1000 ppb range, it appears that the poisoning effect is reversible so that catalytic activity is recovered when the addition of H2S is terminated. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：67 / 72

页数：6

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