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Regeneration of a nickel-on-kieselguhr catalyst by means of supercritical carbon oxide

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Abstract

The nature of the deposits deactivating a nickel-on-kieselguhr supported catalyst in the course of the hydration of unsaturated compounds is analyzed. The possibility of regeneration of the catalyst with supercritical carbon dioxide (SC-CO2) both pure and modified with a polar additive (3 wt % methanol) at temperatures of 70 and 150°C and pressures of 10 to 30 MPa is examined. The kinetic characteristics of the regeneration of the catalyst in a SC-CO2 medium are studied.

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Authors and Affiliations

  1. Nizhnekamsk Chemical-Technological Institute of the Kazan State Technological University, Nizhnekamsk, Tatarstan, Russia

    R. F. Gallyamov & A. A. Sagdeev

  2. Kazan State Technological University, Kazan, Tatarstan, Russia

    F. M. Gumerov & F. R. Gabitov

Authors
  1. R. F. Gallyamov
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  2. A. A. Sagdeev
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  3. F. M. Gumerov
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  4. F. R. Gabitov
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Correspondence to R. F. Gallyamov.

Additional information

Original Russian Text © R.F. Gallyamov, A.A. Sagdeev, F.M. Gumerov, F.R. Gabitov, 2010, published in Sverkhkriticheskie Flyuidy: Teoriya i Praktika, 2010, Vol. 5, No. 1, pp. 40–51.

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Gallyamov, R.F., Sagdeev, A.A., Gumerov, F.M. et al. Regeneration of a nickel-on-kieselguhr catalyst by means of supercritical carbon oxide. Russ. J. Phys. Chem. B 4, 1069–1076 (2010). https://doi.org/10.1134/S1990793110070043

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  • DOI: https://doi.org/10.1134/S1990793110070043

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