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Journal of Energy Chemistry 2013, Vol. 22 Issue (1) :119-129 DOI:

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Hydrocarbon production rates in Fischer-Tropsch synthesis over a Fe/Cu/La/Si catalyst

Ali Nakhaei Pour^a*, Farshad Riyahi^c, Mohammad Reza Housaindokht^a Mohammad Irani^b, Seyed Mehdi Kamali Shahri^d, Behnam Hatami^b

a. Department of Chemistry, Ferdowsi University of Mashhad, P. O. Box: 9177948974, Mashhad, Iran; b. Research Institute of Petroleum Industry of National Iranian

Oil Company, P. O. Box: 14665-137, Tehran, Iran; c. Department of Chemical Engineering, Petroleum University of Technology (PUT), P. O. Box: 63431, Ahwaz, Iran;

d. Chemical Engineering Department, Penn State University, University Park, PA 16802-4400, USA

Abstract
References
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Abstract

The detailed kinetics of Fischer-Tropsch synthesis over an industrial Fe/Cu/La/Si catalyst was studied in a continuous spinning basket reactor under the conditions relevant to industrial operations. Reaction rate equations were derived on the basis of Langmuir-Hinshelwood-Hougen-Watson type models for Fischer-Tropsch synthesis based on possible reactions sets originated from the carbide, enolic and combined enol/carbide mechanisms. Kinetic model candidates were evaluated by the global optimization of kinetic parameters, which were realized by first minimization of multi-response objective functions with conventional Levenberg-Marquardt method. It was found that an enolic mechanism based model could produce a good fit of the experimental data. The activation energy for paraffin formation is 95 kJ·mol^-¹ which is smaller than that for olefin formation (121 kJ·mol^-¹).

Keywords： Fischer-Tropsch synthesis kinetics iron catalysts catalysts selectivity

Cite this article:

Ali Nakhaei Pour*, Farshad Riyahi, Mohammad Reza Housaindokht etc .Hydrocarbon production rates in Fischer-Tropsch synthesis over a Fe/Cu/La/Si catalyst [J] Journal of Energy Chemistry, 2013,V22(1): 119-129

URL:

http://www.jenergchem.org/EN/ 或 http://www.jenergchem.org/EN/Y2013/V22/I1/119

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