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Membranes 2015, 5(1), 13-21; doi:10.3390/membranes5010013

Supported Ionic Liquid Membranes and Ion-Jelly® Membranes with [BMIM][DCA]: Comparison of Its Performance for CO2 Separation

REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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Academic Editor: Michiaki Matsumoto
Received: 19 November 2014 / Accepted: 5 January 2015 / Published: 14 January 2015
(This article belongs to the Special Issue Advances in Liquid Membranes)
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Abstract

In this work, a supported ionic liquid membrane (SILM) was prepared by impregnating a PVDF membrane with 1-butyl-3-methylimidazolium dicyanamide ([BMIM][DCA]) ionic liquid. This membrane was tested for its permeability to pure gases (CO2, N2 and O2) and ideal selectivities were calculated. The SILM performance was also compared to that of Ion-Jelly® membranes, a new type of gelled membranes developed recently. It was found that the PVDF membrane presents permeabilities for pure gases similar or lower to those presented by the Ion-Jelly® membranes, but with increased ideal selectivities. This membrane presents also the highest ideal selectivity (73) for the separation of CO2 from N2 when compared with SILMs using the same PVDF support but with different ionic liquids. View Full-Text
Keywords: supported ionic liquid membranes; Ion-Jelly® membranes; CO2 separation; ionic liquids supported ionic liquid membranes; Ion-Jelly® membranes; CO2 separation; ionic liquids
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Couto, R.; Neves, L.; Simões, P.; Coelhoso, I. Supported Ionic Liquid Membranes and Ion-Jelly® Membranes with [BMIM][DCA]: Comparison of Its Performance for CO2 Separation. Membranes 2015, 5, 13-21.

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