Comparison of Flat and Hollow-Fiber Mixed-Matrix Composite Membranes for CO2 Separation with Temperature
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2017-05
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Zeolite A/poly (1-trimethylsilyl-1-propyne) (zeoliteA/PTMSP) and [emim][Ac]/chitosan (IL/CS) are mixed-matrix membrane (MMM) materials with enhanced CO2/N2 permselectivity even at higher temperature. The scalability to asymmetric flat and hollow-fiber geometry by a simple dip-coating method was analyzed. The CO2/N2 separation performance was evaluated at different temperatures. The resulting composite membranes exhibit a significantly enhanced CO2 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.
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Publisher Copyright: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Fernández-Barquín , A , Casado-Coterillo , C , Etxeberria-Benavides , M , Zuñiga , J & Irabien , A 2017 , ' Comparison of Flat and Hollow-Fiber Mixed-Matrix Composite Membranes for CO 2 Separation with Temperature ' , Chemical Engineering and Technology , vol. 40 , no. 5 , pp. 997-1007 . https://doi.org/10.1002/ceat.201600580