Fischer-Tropsch synthesis on carbon-supported Co catalysts coated on metallic foams
Résumé
The Fischer-Tropsch synthesis (FTS) is a highly exothermic reaction, widely applied to convert syngas to liquid fuels. Temperature control is particularly critical in order to ensure longevity of the catalyst, thermo-mechanical reliability of the entire process and to optimize the product selectivity. Open-cell foams have attracted increasing attention for the intensification of the FTS, thanks to their good thermal conductivity. However, to-date, FTS is limited to classical oxide-supported catalysts. Here, new FTS catalysts have been developed by dip-coating powder Co/C catalyst onto a metallic foam. The beneficial effect of using metallic foams is evidenced, notably by a higher CTY and SC5+, but also by a better stability of the structured catalysts as compared to the corresponding powder catalysts. The impact of the carbon structure on the catalyst performance is also highlighted.
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