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Characterisation and Catalytic Fischer–Tropsch Activity of Co–Ru and Co–Re Catalysts Supported on γ-Al2O3, TiO2 and SiC

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Abstract

A number of supported cobalt catalysts for Fischer–Tropsch synthesis were considered. Catalysts were prepared by impregnation of the supports with a cobalt precursor resulting in cobalt concentrations of 15 or 20 wt%. The active metal was supported onto aluminum oxide, titanium dioxide and silicon carbide supports while rhenium or ruthenium metals were used as promoters, whose concentrations were 0, 0.2 or 1.0 wt%. The catalysts were characterized by a number of methods including BET, chemisorption, and XRD. Some of the catalysts were tested for catalytic activity and selectivity in the Fischer–Tropsch reaction using a fixed bed reactor. Based on the results, the addition of promoter metals increases the dispersion of the active metal cobalt and correspondingly a decrease in the cobalt metal particles, this effect was most evident for the alumina supported catalysts. Further, increased concentrations of the ruthenium promoter (1.0 wt%) slightly increased the selectivity to CH4 and decreased selectivity to C5+.

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Acknowledgments

Authors would like to acknowledge the EU/Interreg Nord program (Project No. 304-8488-10) for its financial support within the HighBio2 project. The BRISK network and The Swedish Academy of Engineering Sciences in Finland are also acknowledged for awarding a Grant to H. Romar. Finally, many thanks go to Sasol, SiCat and Degussa for supplying the support materials.

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Authors and Affiliations

  1. Department of Applied Chemistry, Kokkola University Consortium Chydenius, University of Jyvaskyla, P.O. Box 567, 67101, Kokkola, Finland

    H. Romar, P. Tynjälä, T. Hu & U. Lassi

  2. Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway

    A. H. Lillebø, A. Holmen & E. A. Blekkan

  3. Research Unit of Sustainable Chemistry, University of Oulu, P.O. Box 3000, 90014, Oulu, Finland

    H. Romar, P. Tynjälä, T. Hu & U. Lassi

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  1. H. Romar
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  2. A. H. Lillebø
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  3. P. Tynjälä
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  4. T. Hu
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  5. A. Holmen
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  6. E. A. Blekkan
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  7. U. Lassi
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Correspondence to H. Romar.

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Romar, H., Lillebø, A.H., Tynjälä, P. et al. Characterisation and Catalytic Fischer–Tropsch Activity of Co–Ru and Co–Re Catalysts Supported on γ-Al2O3, TiO2 and SiC. Top Catal 58, 887–895 (2015). https://doi.org/10.1007/s11244-015-0455-0

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