CATEGORY: IONIC LIQUIDS
Journal of Membrane Science, Volumes 411–412, 1
September 2012, Pages 73–80
Membrane liquid loss mechanism of supported
ionic liquid membrane for gas separation
Wei Zhao a, b, Gaohong He a, Fei Nie a, Lingling
Zhang a, Hongchao Feng a, Hongjing Liu b
a State Key Laboratory of Fine Chemicals, R&D Center of Membrane Science
and Technology, School of Chemical Engineering, Dalian University of
Technology, Dalian 116024, China
b School of Petrochemical Engineering, Shenyang University of Technology,
Liaoyang 111003, China
Abstract
Membrane liquid loss of supported ionic liquid
membranes (SILMs) under high cross-membrane pressure difference (Δp) for gas
separation is a subject of great interest among researchers. Authors report that
even the serious loss of membrane liquid may not lead to the degradation of
SILMs.
Researchers fabricated SILMs with
1-n-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) immobilized in
polyethersulfone (PES), nylon 6 (N6), and polyvinylidene fluoride (PVDF)
microporous membranes in order to explore the underlying membrane liquid loss
mechanism of SILMs,. They studied the membrane liquid loss behaviors of the
SILMs in terms of gas separation performance and the weight loss of membrane
liquid (ML loss).
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