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Gas mixture flow in nanoporous media in the presence of surface forces. The dusty-gas model

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Abstract

The dusty-gas model has been generalized to the case of gas mixture flow in nanoporous media under the conditions of the action of surface forces. A basic set of transport equations has been derived proceeding from kinetic equations for a gas mixture and dust particles. To take into account the surface forces, the interaction between a gas and dust particles has been represented as a sum of a long-range potential, which reflects the surface forces, and a short-range potential, which describes gas molecule scattering on the surface of pore walls. The contribution of the long-range component has been taken into account in the self-consistent approximation, while the short-range component has been considered in the standard manner. The surface forces have been shown to have a substantial effect on the transfer of mixed gases through porous bodies; in particular, it becomes possible to separate mixture components due to different potentials of the interaction of their molecules with pore surface.

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Authors and Affiliations

  1. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119071, Russia

    V. I. Roldughin & A. V. Shabatin

  2. National Research Nuclear University, Moscow Institute of Engineering Physics, Kashirskoe sh. 31, Moscow, 115409, Russia

    V. I. Roldughin & V. M. Zhdanov

Authors
  1. V. I. Roldughin
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  2. V. M. Zhdanov
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  3. A. V. Shabatin
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Correspondence to V. I. Roldughin.

Additional information

Original Russian Text © V.I. Roldughin, V.M. Zhdanov, A.V. Shabatin, 2016, published in Kolloidnyi Zhurnal, 2016, Vol. 78, No. 6, pp. 772–782.

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Roldughin, V.I., Zhdanov, V.M. & Shabatin, A.V. Gas mixture flow in nanoporous media in the presence of surface forces. The dusty-gas model. Colloid J 79, 116–125 (2017). https://doi.org/10.1134/S1061933X16060120

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  • DOI: https://doi.org/10.1134/S1061933X16060120

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