Wetting of supports by ionic liquids used in gas separation processes
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Gdansk University of Technology
Publication date: 2012-01-01
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Robert Aranowski   

Department of Chemical Technology, Chemical Faculty, Gdansk University of Technology, 80-952 Gdansk, Poland
Physicochem. Probl. Miner. Process. 2012;48(1):129-140
Ionic liquids were found to be selective solvents for separation of gases. They are widely used in supported ionic liquid membranes (SILMs) technology, especially in gas separation and purification processes. This work has characterized commercially available porous membranes employed in such purposes. Characterization of supports and membrane phases was carried out in order to determine factors influencing membrane stability. Scanning electron microscopy (SEM) was used to determine morphology of membrane surface. In this work wetting of the polymeric support with [Emim][TfO], [Emim][Tf2N], [Bmim][TfO] and [Bmim][Tf2N] and swelling of the membrane impregnated with ionic liquids have been investigated.
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