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Theoretical models for the thermo-gravitational separation process in porous media filled by N-component mixtures

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Abstract.

The aim of this work is to present a theoretical analysis of the separation of an N-component mixture. In this study, two analytical models explaining the thermo-gravitational separation of components in N-component mixtures for vertical cavity filled by a porous medium are presented and assessed. The basic state and the separation are expressed in terms of the separation ratio, and the Lewis, cross-diffusion and Rayleigh numbers. Our computational analysis confirms that, for the given values of the mass fractions, thermodiffusion can be measured with a thermo-gravitational column, strongly supporting the experimentally determined transport coefficients.

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Authors and Affiliations

  1. Université Lyon 1, Université de Lyon, LMFA UMR CNRS 5509, 36, avenue Guy de Collongue, 69134, Ecully, France

    Dimitri Mutschler

  2. Université Paul Sabatier, IMFT UMR CNRS 5502, 2, Allée du Professeur Camille Soula, 31400, Toulouse, France

    Mohamed Aziz Larabi & Abdelkader Mojtabi

Authors
  1. Dimitri Mutschler
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  2. Mohamed Aziz Larabi
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  3. Abdelkader Mojtabi
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Correspondence to Abdelkader Mojtabi.

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Mutschler, D., Larabi, M.A. & Mojtabi, A. Theoretical models for the thermo-gravitational separation process in porous media filled by N-component mixtures. Eur. Phys. J. E 40, 49 (2017). https://doi.org/10.1140/epje/i2017-11538-0

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