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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, Combes, Garry B., Williams, Peter B., Taylor, Stuart Hamilton, Claridge, John B., Rosseinsky, Matthew J. and Hutchings, Graham John 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: 12 Jun 2019 02:32

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