Fischer-Tropsch synthesis: Relations between structure of cobalt catalysts and their catalytic performance |
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Authors: | Andrei Y. Khodakov |
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Affiliation: | aUnité de Catalyse et de Chimie du Solide - UMR 8181 CNRS, USTL-ENSCL-EC Lille, Bat C3, Cité scientifique, 59655 Villeneuve d’Ascq, France |
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Abstract: | Fischer-Tropsch synthesis has been experiencing a strong revival in recent years, due to the resource utilization considerations and environmental concerns. Cobalt supported catalysts represent the optimal choice for the synthesis of long-chained hydrocarbons from syngas with high H2/CO ratio. This paper reviews the state of the art related to the influence of cobalt particle size and cobalt phase composition, catalyst support and support texture, and promotion with noble metals on Fischer-Tropsch reaction rates, hydrocarbon selectivity and catalyst stability. Possible mechanisms of catalyst deactivation and modification of cobalt active sites during the reaction are also discussed. Several requirements to the design of cobalt Fischer-Tropsch catalysts have been specified. |
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Keywords: | Clean fuels GTL Fischer-Tropsch Cobalt catalysts Promotion Nanoparticles Dispersion Reducibility In situ X-ray absorption XANES EXAFS In situ magnetic method |
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