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Novel fixed‐carrier membranes for CO 2 separation
Author(s) -
Zhang Ying,
Wang Zhi,
Wang Shichang
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.11228
Subject(s) - permeance , membrane , polysulfone , selectivity , materials science , partial pressure , chemical engineering , facilitated diffusion , gas separation , analytical chemistry (journal) , polymer chemistry , chemistry , chromatography , permeation , organic chemistry , oxygen , catalysis , engineering , biochemistry
A new membrane material having two kinds of CO 2 carriers was obtained. Composite membranes were prepared with the material and support membranes. The facilitated transport of CO 2 through these membranes was performed with pure CH 4 and CO 2 as well as CH 4 /CO 2 mixtures containing 50 vol % CO 2 . The results show that the membranes possess better CO 2 permeance than that of other fixed carrier membranes reported in the literature. In the measurements with pure gases, at 26°C, 0.013 atm of CO 2 pressure, the membrane with polysulfone support displays a CO 2 permeance of 7.93 × 10 −4 cm 3 /cm 2 s cmHg and CO 2 /CH 4 ideal selectivity of 212.1. In the measurements with mixed gases, at 26°C, 0.016 atm of CO 2 partial pressure, the membrane displays a CO 2 permeance of 1.69 × 10 −4 cm 3 /cm 2 s cmHg and CO 2 /CH 4 selectivity of 48.1. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 2222–2226, 2002