Publication Date:
2012-12-22
Description:
Optimization of Fischer-Tropsch (FT) process in a fixed-bed reactor is carried out using non-uniform catalysts. The C 5 + yield of the reactions is maximized utilizing a combination of non-uniform catalysts across the bed. A 1D heterogeneous model is developed to simulate the bed containing uniform and non-uniform catalysts. It is found that the egg-shell and surface-layered catalysts result in higher C 5 + yield. Moreover, effects of cooling temperature are studied. Genetic Algorithm (GA) and Successive Quadratic Programming (SQP) methods are applied. Feed and cooling temperature are selected as decision variables together with distribution of non-uniform catalysts along the bed. The optimization result shows 14.47 % increase in the C 5 + yield with respect to the base condition. Performance of various non-uniform catalysts are investigated with the aim of maximizing the C 5 + yield of the Fischer-Tropsch process. The effects of the active com-ponent distribution along the bed as well as the feed and cooling temperature are studied.
Print ISSN:
0930-7516
Electronic ISSN:
1521-4125
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
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