Kinetics of carbon dioxide removal from water in flat membrane contactor

Journal Article (2014)
Author(s)

V. I. Roldugin (Russian Academy of Sciences)

A Shutova (Russian Academy of Sciences)

Alexey Volkov (Russian Academy of Sciences)

E. L.V. Goetheer (TNO)

V.V. Volkov (National Research Nuclear Institute MEPhI, Russian Academy of Sciences)

Affiliation
External organisation
DOI related publication
https://doi.org/10.1134/S0965544114070111
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Publication Year
2014
Language
English
Affiliation
External organisation
Issue number
7
Volume number
54
Pages (from-to)
507-514

Abstract

The problem of regeneration of a carbon dioxide physical absorbent in gas-liquid membrane contactor has been addressed using water as the absorbent. An analytical solution for the mass transfer equation has been obtained with taking into account not only axial, but also radial diffusion of the solute in the liquid flow and thereby significantly extending the area of applicability of the solution. The kinetics of carbon dioxide desorption from aqueous solutions has been described for the membrane contactor based on asymmetric gas separation membrane made of polyvinyltrimethylsilane (PVTMS). It has been shown that the model agrees well with experimental data for different pressures of water saturation with carbon dioxide and desorption temperatures.

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