Kinetics of the Fischer-Tropsch Reaction over a Ru-Promoted Co/Al2O3 Catalyst

被引：18

作者：

Bhatelia, Tejas ^{[1
]}

Ma, Wenping ^{[2
]}

Davis, Burtron ^{[2
]}

Jacobs, Gary ^{[2
]}

Bukur, Dragomir ^{[1
]}

机构：

[1] Texas A&M Univ Qatar, Dept Chem Engn, POB 23874, Doha, Qatar

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

来源：

PRES 2011: 14TH INTERNATIONAL CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION, PTS 1 AND 2 | 2011年 / 25卷

关键词：

COBALT CATALYST; HYDROCARBONS; WATER;

D O I：

10.3303/CET1125118

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The kinetics of the Fischer Tropsch (FT) synthesis reaction over 0.27 % Ru 25 % Co/Al2O3 catalyst was studied in a IL stirred tank slurry reactor (STSR). Experiments were conducted at reactor pressures of 1.4 MPa and 2.4 MPa, temperatures of 205 degrees C and 220 degrees C, H-2/CO feed ratios of 1.4 and 2.1 and gas space velocities ranging from 2 to 15 NL/g-cat-h. Langmuir-Hinshelwood-Hougen-Watson (LHHW) type rate equations were derived on the basis of a set of reactions originating from carbide and enolic pathways for hydrocarbon formation. Derived rate equations were fitted to the corrected experimental rate using Levenberg-Marquardt method to obtain model parameters. Physical and statistical tests were used to discriminate between rival models. It was found that a model based on hydrogen-assisted dissociative adsorption of CO followed by hydrogenation of dissociatively adsorbed CO provides the best fit to the data.

引用

页码：707 / +

页数：2

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