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Ni-sulfide particles in NaY-zeolite for combined hydrodesulfurization and hydrocracking purposes

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Abstract

The influence of physisorbed water on the formation of nickel-sulfide species in a 57Co doped ion exchange type 57Co:NiNaY catalyst is studied by Mössbauer Emission Spectroscopy. The absence or presence of physisorbed water during sulfidation seems to have no influence on the local nickel environment of the formed Ni-sulfide species. This result is confirmed by EXAFS measurements. In spite of the resemblance found in MES and EXAFS a large difference is found for the initial HDS activities, which is explained by the different particle sizes (HREM) found at the outer surface of the zeolite.

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Authors and Affiliations

  1. Interfacultair Reactor Instituut, Delft University of Technology, Mekelweg 15, 2629 JB, Delft, The Netherlands

    P.W. de Bont, E. Boellaard & A.M. van der Kraan

  2. Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands

    M.J. Vissenberg, V.H.J. de Beer, J.A.R. van Veen & R.A. van Santen

Authors
  1. P.W. de Bont
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  2. M.J. Vissenberg
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  3. E. Boellaard
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  4. V.H.J. de Beer
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  5. J.A.R. van Veen
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  6. R.A. van Santen
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  7. A.M. van der Kraan
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de Bont, P., Vissenberg, M., Boellaard, E. et al. Ni-sulfide particles in NaY-zeolite for combined hydrodesulfurization and hydrocracking purposes. Hyperfine Interactions 111, 39–44 (1998). https://doi.org/10.1023/A:1012668609543

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  • DOI: https://doi.org/10.1023/A:1012668609543

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