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A study of the influence of the conditions of preparation of γ-aluminum oxide as a carrier for reforming catalysts on its physicochemical properties

  • Chemical Kinetics and Catalysis
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Abstract

The formation of highly imperfect γ-Al2O3 oxide prepared by calcining pseuodoboehmite and plasticized by organic acids was studied. The nature of the organic acid-aluminum hydroxide plasticizer was found to substantially influence the degree of γ-Al2O3 structure imperfection estimated qualitatively as the difference between the X-ray structural density and effective density with respect to helium and aluminum oxide. A high degree of imperfection caused an increase in the intensity of the absorption band at 3775 cm−1 corresponding to OH groups localized on five-coordinate Al3+ and the concentration of Lewis acid centers. The adsorption and catalytic properties of systems based on these carriers were studied.

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Authors and Affiliations

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

    V. Yu. Tregubenko, I. E. Udras, V. A. Drozdov & A. S. Belyi

Authors
  1. V. Yu. Tregubenko
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  2. I. E. Udras
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  3. V. A. Drozdov
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  4. A. S. Belyi
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Corresponding author

Correspondence to V. Yu. Tregubenko.

Additional information

Original Russian Text © V.Yu. Tregubenko, I.E. Udras, V.A. Drozdov, A.S. Belyi, 2009, published in Zhurnal Fizicheskoi Khimii, 2009, Vol. 83, No. 12, pp. 2238–2243.

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Tregubenko, V.Y., Udras, I.E., Drozdov, V.A. et al. A study of the influence of the conditions of preparation of γ-aluminum oxide as a carrier for reforming catalysts on its physicochemical properties. Russ. J. Phys. Chem. 83, 2039–2044 (2009). https://doi.org/10.1134/S0036024409120061

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  • DOI: https://doi.org/10.1134/S0036024409120061

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