Development of a complete kinetic model for the Fischer-Tropsch synthesis over Co/Al2O3 catalysts

被引：122
作者：
Visconti, Carlo Giorgio
Tronconi, Enrico
Lietti, Luca
Zennaro, Roberto
Forzatti, Pio
机构：
[1] Politecn Milan, Dipartimento Chim Mat & Ingn Chim Giulio Natta, I-20133 Milan, Italy
[2] Eni, Div Refining & Marketing, I-20097 San Donato Milanese, Italy
来源：
CHEMICAL ENGINEERING SCIENCE | 2007年 / 62卷 / 18-20期
关键词：
Fischer-Tropsch synthesis; kinetics; catalysis; catalyst selectivity; cobalt; mathematical modeling;
D O I：
10.1016/j.ces.2006.12.064
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A global kinetic model of the FTS over a Co/Al2O3 state-of-the-art catalyst is developed in a fixed bed micro-reactor under conditions relevant to industrial operation (temperature, 210-235 degrees C; pressure, 8-25 bar; H-2/CO feed molar ratio, 1.8-2.7; gas hourly space velocity, 2000-7000cm(3)(STP)/h/g(catalyst))- On the basis of proposed reaction mechanisms, developed according to the carbide theory and the alkyl mechanism, the kinetic expressions for n-paraffins and alpha-olefins formation are derived. Both the calculated CO conversion and the hydrocarbon distribution (up to n = 49) in FT reaction are satisfactorily predicted. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5338 / 5343
页数：6
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