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DOE OSTI · 1778643

Polymeric membranes for CO 2 separation and capture

Han, Yang·Ho, W. S. Winston
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Abstract

Over the past decade, CO 2 separation and capture have become the new bandwagon for polymer science and membrane research. This review presents the fundamentals of CO 2 /gas separation in polymeric membranes and discusses how these principles underpin opportunities and challenges for post-combustion carbon capture (CO 2 /N 2 ), hydrogen purification (CO 2 /H 2 ), and natural gas and biogas sweetening (CO 2 /CH 4 ). Emerging polymeric membrane materials are discussed, including a few polymers containing a high content of polar functional groups (i.e., ether oxygen-rich polymers and polymeric ionic liquids), shape-persisting glassy polymers (i.e., perfluoropolymers, thermally rearranged polymers, iptycene-containing polymers), and reactive polymers featuring facilitated transport. Moreover, the promising candidates for each CO 2 separation application are highlighted. Lastly, the permeability-selectivity data reviewed were plotted against their 2008 and 2019 upper bounds.

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08 HYDROGENCarbon capturegas separationhydrogen purificationnatural gas sweeteningpolymeric membrane

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Han, Yang, Ho, W. S. Winston. 2021-03-11. Polymeric membranes for CO 2 separation and capture. https://doi.org/10.1016/j.memsci.2021.119244

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