Recent advances in polymeric facilitated transport membranes for carbon dioxide separation and hydrogen purification
JOURNAL OF POLYMER SCIENCE(2020)
摘要
Membrane and membrane process have been widely considered as one of the best candidates for mitigating CO(2)emissions from the combustion or utilization of fossil fuels. Various amine-containing polymers constitute an important class of membranes, where the highly selective CO(2)transport is achieved by the facilitated transport mechanism. In this review, the amine-CO(2)chemistry is discussed in conjunction with the mechanism of the reaction-mediated CO(2)transport. A wide variety of amine-containing polymers are discussed based on two synthesis motifs: (a) polyamines with amino groups covalently bound to the polymer backbone and (b) small molecule amines embedded in a polymer matrix. This review concludes with the remarks on the facilitated transport membranes for post-combustion carbon capture (CO2/N-2) and hydrogen purification (CO2/H-2).
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关键词
carbon capture,facilitated transport,hydrogen purification,membrane
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