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Effects of the modification of reforming alumina-platinum catalysts with zirconium

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Abstract

The effects of the modification of supported platinum as a constituent of reforming Pt/Al2O3 and Pt-Re/Al2O3 catalysts by introducing zirconium, which was obtained from various starting compounds, into the composition of the support were studied. These effects were most pronounced if difficult-to-hydrolyze compounds served as a source of zirconium. It was found that zirconium affected the metal-support interaction strength, which is responsible for the formation of the most strongly adsorbed hydrogen species (over the temperature range of 300–500°C). This suggests a change in the electronic state of platinum under the action of zirconium. Platinum sites became more regular; as a result of this, the reaction rate parameters of heptane conversion changed.

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Authors and Affiliations

  1. Institute of Hydrocarbon Processing, Siberian Branch, Russian Academy of Sciences, Omsk, 644040, Russia

    I. E. Udras, E. V. Zatolokina & A. S. Belyi

  2. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    E. A. Paukshtis

Authors
  1. I. E. Udras
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  2. E. V. Zatolokina
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  3. E. A. Paukshtis
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  4. A. S. Belyi
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Correspondence to I. E. Udras.

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Original Russian Text © I.E. Udras, E.V. Zatolokina, E.A. Paukshtis, A.S. Belyi, 2010, published in Kinetika i Kataliz, 2010, Vol. 51, No. 1, pp. 88–94.

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Udras, I.E., Zatolokina, E.V., Paukshtis, E.A. et al. Effects of the modification of reforming alumina-platinum catalysts with zirconium. Kinet Catal 51, 81–87 (2010). https://doi.org/10.1134/S0023158410010143

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  • DOI: https://doi.org/10.1134/S0023158410010143

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