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Effect of pre-heat treatment on a Fischer-Tropsch iron catalyst

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Abstract

Mössbauer spectroscopy was used to investigate the effect of heating the Fischer-Tropsch catalyst 100 Fe/5 Cu/4.2 K/24 SiO2 in two different atmospheres while ramping the temperature of the catalyst from room temperature to 280 °C in 5.5 h prior to pretreatment of the catalyst. Preheating in H2/CO=0.7 gave rise to an iron (Fe2+) silicate, while preheating in helium resulted in the formation of ε′-carbide Fe2.2C. Iron oxides and χ-carbide Fe5C2 were also formed in both preheat treatments.

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Reference

  1. M.F. Zarochak and M.A. McDonald, Paper presented at DOE Indirect Liquefaction Contractors Review Meeting, Pittsburgh, 1986, pp. 96–121.

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Authors and Affiliations

  1. Institute of Mining and Minerals Research, University of Kentucky, 40506, Lexington, KY, USA

    K. R. P. M. Rao, Frank E. Huggins, Bhaswati Ganguly, Vikram Mahajan & Gerald P. Huffman

  2. Center for Applied Energy Research, University of Kentucky, 40506, Lexington, KY, USA

    Burton Davis, Robert J. O'Brien & Liguang Xu

  3. Pittsburgh Energy Technology Center, U.S. Department of Energy, 15236, Pittsburgh, PA, USA

    V. U. S. Rao

Authors
  1. K. R. P. M. Rao
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  2. Frank E. Huggins
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  3. Bhaswati Ganguly
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  4. Vikram Mahajan
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  5. Gerald P. Huffman
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  6. Burton Davis
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  7. Robert J. O'Brien
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  8. Liguang Xu
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  9. V. U. S. Rao
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Rao, K.R.P.M., Huggins, F.E., Ganguly, B. et al. Effect of pre-heat treatment on a Fischer-Tropsch iron catalyst. Hyperfine Interact 93, 1755–1758 (1994). https://doi.org/10.1007/BF02072941

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  • DOI: https://doi.org/10.1007/BF02072941

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