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

  • Dimitri Mutschler
  • Mohamed Aziz Larabi
  • Abdelkader Mojtabi
Regular Article
Part of the following topical collections:
  1. Non-isothermal transport in complex fluids

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.

Graphical abstract

Keywords

Topical Issue: Non-isothermal transport in complex fluids 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Dimitri Mutschler
    • 1
  • Mohamed Aziz Larabi
    • 2
  • Abdelkader Mojtabi
    • 2
  1. 1.Université Lyon 1, Université de Lyon, LMFA UMR CNRS 5509EcullyFrance
  2. 2.Université Paul Sabatier, IMFT UMR CNRS 5502ToulouseFrance

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