Thermodynamics of carbonyl sulfide poisoning on F-T synthesis catalyst

HOU Chao-peng; XIA Guo-fu; LI Ming-feng; NIE Hong; LI Da-dong

Volume 40 Issue 01

Jan. 2012

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HOU Chao-peng, XIA Guo-fu, LI Ming-feng, NIE Hong, LI Da-dong. Thermodynamics of carbonyl sulfide poisoning on F-T synthesis catalyst[J]. Journal of Fuel Chemistry and Technology, 2012, 40(01): 68-74.

Citation:

HOU Chao-peng, XIA Guo-fu, LI Ming-feng, NIE Hong, LI Da-dong. Thermodynamics of carbonyl sulfide poisoning on F-T synthesis catalyst[J]. Journal of Fuel Chemistry and Technology, 2012, 40(01): 68-74.

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Thermodynamics of carbonyl sulfide poisoning on F-T synthesis catalyst

Research Institute of Petroleum Processing, Sinopec, Beijing 100083, China

Received Date: 2011-01-24
Rev Recd Date: 2011-04-19
Publish Date: 2012-01-31

Abstract

Abstract

Thermodynamics of poisoning on F-T synthesis catalyst with carbonyl sulfide were calculated according to some thermodynamic data and related software. Poisoning of Ru, Fe and Co can occur spontaneously under the conditions of F-T synthesis reaction because of the low negative value of ΔG thermodynamically. Ruthenium in Ru-based F-T synthesis catalyst can be poisoned by the COS on 10^-9 level. There are many types of Fe and Co sulfide generated in the poisoning reactions. Their equilibrium constants are much different for different reactions, and their necessary concentrations of COS are also different. As the active phases of the Fe-based F-T synthesis catalyst are complex, it is feasible to develop some sulfur resistant catalysts. And for the Co catalyst, the characteristics of F-T synthesis reaction and the modification of catalysts may contribute to the development of sulfur tolerant catalyst possibly.
- F-T synthesis,
- catalyst,
- thermodynamics,
- COS,
- poisoning,
- sulfur tolerance

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References(29)

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