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The effect of nickel on the component state and HDS activity of alumina-supported heteropolytungstates

  • Mechanisms of Catalytic Reactions
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Abstract

Hydrotreating Ni heteropolytungstate catalysts have been prepared by impregnation of γ-Al2O3-alumina with solutions of H3PW12O40 acid and its Ni salt. The nickel content is varied by adding Ni(NO3)2 salt. The calcined samples are characterized by BET, IR, TPR, and XPS techniques. The catalytic activity is tested for HDS of thiophene. It is shown that the initial heteropolyanion, its lacunary analog, and nickel substituted heteropolyanion are present on the surface as a result of the interaction between the active component and the alumina support. The mixed NiWS phase formed after sulfidation determines the HDS activity of the catalysts.

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Authors and Affiliations

  1. Institute of Catalysis, Bulgarian Academy of Sciences, Akad. G. Bonchev str., Bl. 11, 1113, Sofia, Bulgaria

    R. Palcheva, A. Spojakina, G. Tyuliev & L. Petrov

  2. Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, 165 02, Prague 6, Czech Republic

    K. Jiratova

Authors
  1. R. Palcheva
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  2. A. Spojakina
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  3. G. Tyuliev
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  4. K. Jiratova
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  5. L. Petrov
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Corresponding author

Correspondence to R. Palcheva.

Additional information

Published in Russian in Kinetika i Kataliz, 2007, Vol. 48, No. 6, pp. 905–911.

This article was submitted by the authors in English.

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Palcheva, R., Spojakina, A., Tyuliev, G. et al. The effect of nickel on the component state and HDS activity of alumina-supported heteropolytungstates. Kinet Catal 48, 847–852 (2007). https://doi.org/10.1134/S0023158407060146

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  • DOI: https://doi.org/10.1134/S0023158407060146

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