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Preparation of Fischer–Tropsch supported cobalt catalysts using a new gas anti-solvent process

Perea Marin, Raimon, Kondrat, Simon A., Gallagher, James R., Enache, Dan I., Smith, Paul John, Boldrin, Paul, Davies, Thomas Edward, Bartley, Jonathan Keith ORCID:, Combes, Garry B., Williams, Peter B., Taylor, Stuart H. ORCID:, Claridge, John B., Rosseinsky, Matthew J. and Hutchings, Graham John ORCID: 2013. Preparation of Fischer–Tropsch supported cobalt catalysts using a new gas anti-solvent process. ACS Catalysis 3 (4) , pp. 764-772. 10.1021/cs4000359

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Cobalt and ruthenium-promoted cobalt Fischer–Tropsch catalysts supported on titania have been prepared for the first time by gas anti-solvent precipitation. The use of dense CO2 as an anti-solvent enables the precipitation of cobalt acetate and ruthenium acetylacetonate onto preformed titania. The gas anti-solvent process produces catalysts with the desired 20 wt % cobalt content as precursors, which on calcination give highly dispersed Co3O4. The addition of ruthenium to the gas anti-solvent prepared cobalt catalysts has been investigated by two methods (a) coprecipitation with cobalt acetate and (b) wet impregnation onto a precalcined cobalt titania catalyst, and these resulted in catalysts with distinctly different properties. These catalysts were compared with a standard ruthenium-promoted cobalt catalyst prepared by wet impregnation and were found to be substantially more active for the Fischer–Tropsch reaction.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Publisher: American Chemical Society
ISSN: 2155-5435
Funders: Technology Strategy Board
Last Modified: 17 Aug 2023 01:12

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