Air Dehydration by Permeation Through Dimethylpolysiloxane/polysulfone Membrane

Authors

  • Shui Wai Lin Instituto Tecnológico de Tijuana
  • Salvador Valera Lamas Instituto Tecnológico de Tijuana

DOI:

https://doi.org/10.29356/jmcs.v55i1.850

Keywords:

gas separation, permselective membranes, dimethylpolysiloxane, dry air.

Abstract

The present work focuses on design, fabrication and evaluation of an air-dehydration membrane system that is capable of producing dry air with a Dew Point of –50ºC at a rate of 310 cm3/s using compressed wet-air (90 psig, 23ºC) as feed to a membrane system of dimethylpolysiloxane thin-film supported by microporous polysulfone substrate (PDMS/PS). The dehydrator element comprises of a flat sheet PDMS/PS membrane fixed to a cylindrical tubular support, the latter is fitted inside an appropriated chamber. The air-dehydration process is achieved by means of selective permeation of H2O(g) over N2 and O2 gases, the major components of the wet- air, through PDMS/PS membrane.

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Author Biographies

Shui Wai Lin, Instituto Tecnológico de Tijuana

Centro de Graduados e Investigación

Salvador Valera Lamas, Instituto Tecnológico de Tijuana

Centro de Graduados e Investigación

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Published

2019-04-22

Issue

Vol. 55 No. 1 (2011): Special Issue of the J. Mex. Chem. Soc. in Honor of Dr. Lars Hellberg (1930-2011)

Section

Regular Articles

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