Poisoning of cobalt catalyst used for Fischer-Tropsch synthesis

Dennis E. Sparks; Gary Jacobs; Muthu Kumaran Gnanamani; Venkat Ramana Rao Pendyala; Wenping Ma; Jungshik Kang; Wilson D. Shafer; Robert A. Keogh; Ursula M. Graham; Pei Gao; Burtron H. Davis

doi:10.1016/j.cattod.2013.01.011

Poisoning of cobalt catalyst used for Fischer-Tropsch synthesis

Dennis E. Sparks, Gary Jacobs, Muthu Kumaran Gnanamani, Venkat Ramana Rao Pendyala, Wenping Ma, Jungshik Kang, Wilson D. Shafer, Robert A. Keogh, Ursula M. Graham, Pei Gao, Burtron H. Davis

Center for Applied Energy Research (CAER)

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

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 H ₂S is terminated.

Original language	English
Pages (from-to)	67-72
Number of pages	6
Journal	Catalysis Today
Volume	215
DOIs	https://doi.org/10.1016/j.cattod.2013.01.011
State	Published - Oct 15 2013

Keywords

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

ASJC Scopus subject areas

Catalysis
Chemistry (all)

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10.1016/j.cattod.2013.01.011

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title = "Poisoning of cobalt catalyst used for Fischer-Tropsch synthesis",

abstract = "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 H 2S is terminated.",

keywords = "Catalyst poison, Cobalt catalyst, Fischer-Tropsch synthesis, Hydrogen sulfide, Threshold poisoning level",

author = "Sparks, {Dennis E.} and Gary Jacobs and Gnanamani, {Muthu Kumaran} and Pendyala, {Venkat Ramana Rao} and Wenping Ma and Jungshik Kang and Shafer, {Wilson D.} and Keogh, {Robert A.} and Graham, {Ursula M.} and Pei Gao and Davis, {Burtron H.}",

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doi = "10.1016/j.cattod.2013.01.011",

language = "English",

volume = "215",

pages = "67--72",

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T1 - Poisoning of cobalt catalyst used for Fischer-Tropsch synthesis

AU - Sparks, Dennis E.

AU - Jacobs, Gary

AU - Gnanamani, Muthu Kumaran

AU - Pendyala, Venkat Ramana Rao

AU - Ma, Wenping

AU - Kang, Jungshik

AU - Shafer, Wilson D.

AU - Keogh, Robert A.

AU - Graham, Ursula M.

AU - Gao, Pei

AU - Davis, Burtron H.

PY - 2013/10/15

Y1 - 2013/10/15

N2 - 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 H 2S is terminated.

AB - 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 H 2S is terminated.

KW - Catalyst poison

KW - Cobalt catalyst

KW - Fischer-Tropsch synthesis

KW - Hydrogen sulfide

KW - Threshold poisoning level

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DO - 10.1016/j.cattod.2013.01.011

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VL - 215

SP - 67

EP - 72

ER -

Poisoning of cobalt catalyst used for Fischer-Tropsch synthesis

Abstract

Keywords

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