Particle size effects in Fischer-Tropsch synthesis by Co catalyst supported on carbon nanotubes

doi:10.1016/S1872-2067(15)60840-3

催化学报 ›› 2015, Vol. 36 ›› Issue (8): 1372-1378.DOI: 10.1016/S1872-2067(15)60840-3

Particle size effects in Fischer-Tropsch synthesis by Co catalyst supported on carbon nanotubes

Ali Nakhaei Pour, Elham Hosaini, Mohammad Izadyar, Mohammad Reza Housaindokht

Department of Chemistry, Ferdowsi University of Mashhad, P.O. Box: 9177948974, Mashhad, Iran

收稿日期:2015-02-18 修回日期:2015-03-19 出版日期:2015-07-29 发布日期:2015-07-30
通讯作者: Ali Nakhaei Pour

Particle size effects in Fischer-Tropsch synthesis by Co catalyst supported on carbon nanotubes

Ali Nakhaei Pour, Elham Hosaini, Mohammad Izadyar, Mohammad Reza Housaindokht

Department of Chemistry, Ferdowsi University of Mashhad, P.O. Box: 9177948974, Mashhad, Iran

Received:2015-02-18 Revised:2015-03-19 Online:2015-07-29 Published:2015-07-30

摘要/Abstract

摘要：

The effect of Co particle size on the Fischer-Tropsch synthesis (FTS) activity of carbon nanotube (CNT)-supported Co catalysts was investigated. Microemulsion (using water-to-surfactant molar ratios of 2 to12) and impregnation techniques were used to prepare catalysts with different Co particle sizes. Kinetic studies were performed to understand the effect of Co particle size on catalytic activity. Size-dependent kinetic parameters were developed using a thermodynamic method, to evaluate the structural sensitivity of the CNT-supported Co catalysts. The size-independent FTS reaction rate constant and size-independent adsorption parameter increased with increasing reaction temperature. The Polani parameter also depended on catalyst particle size, because of changes in the catalyst surface coverage.

关键词: Fischer-Tropsch synthesis, Co catalysts, Carbon nanotubes, Size dependent parameters, Kinetics

Abstract:

Key words: Fischer-Tropsch synthesis, Co catalysts, Carbon nanotubes, Size dependent parameters, Kinetics

Ali Nakhaei Pour, Elham Hosaini, Mohammad Izadyar, Mohammad Reza Housaindokht. Particle size effects in Fischer-Tropsch synthesis by Co catalyst supported on carbon nanotubes[J]. 催化学报, 2015, 36(8): 1372-1378.

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Particle size effects in Fischer-Tropsch synthesis by Co catalyst supported on carbon nanotubes

Particle size effects in Fischer-Tropsch synthesis by Co catalyst supported on carbon nanotubes

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