Comparison of Flat and Hollow‐Fiber Mixed‐Matrix Composite Membranes for CO 2 Separation with Temperature

Zeolite A/poly (1‐trimethylsilyl‐1‐propyne) (zeoliteA/PTMSP) and [emim][Ac]/chitosan (IL/CS) are mixed‐matrix membrane (MMM) materials with enhanced CO 2 /N 2 permselectivity even at higher temperature. The scalability to asymmetric flat and hollow‐fiber geometry by a simple dip‐coating method was a...

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Bibliographic Details
Published in:Chemical engineering & technology 2017-05, Vol.40 (5), p.997-1007
Main Authors: Fernández-Barquín, Ana, Casado-Coterillo, Clara, Etxeberria-Benavides, Miren, Zuñiga, Jon, Irabien, Angel
Format: Article
Language:English
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Summary:Zeolite A/poly (1‐trimethylsilyl‐1‐propyne) (zeoliteA/PTMSP) and [emim][Ac]/chitosan (IL/CS) are mixed‐matrix membrane (MMM) materials with enhanced CO 2 /N 2 permselectivity even at higher temperature. The scalability to asymmetric flat and hollow‐fiber geometry by a simple dip‐coating method was analyzed. The CO 2 /N 2 separation performance was evaluated at different temperatures. The resulting composite membranes exhibit a significantly enhanced CO 2 permeation flux because the MMM layer thickness is reduced by 97 % from flat to hollow‐fiber geometries in IL‐CS composite membranes, while the selectivity is maintained similar to the self‐standing membranes, thus proving that compatibility between the membrane component materials leads to a defect‐free composite membrane, regardless the geometry and temperature.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201600580