Premium
Recent advances in polymeric facilitated transport membranes for carbon dioxide separation and hydrogen purification
Author(s) -
Han Yang,
Ho W. S. Winston
Publication year - 2020
Publication title -
journal of polymer science
Language(s) - English
Resource type - Journals
eISSN - 2642-4169
pISSN - 2642-4150
DOI - 10.1002/pol.20200187
Subject(s) - membrane , amine gas treating , polymer , chemistry , hydrogen purifier , covalent bond , hydrogen , organic chemistry , molecule , facilitated diffusion , chemical engineering , polymer chemistry , combinatorial chemistry , hydrogen production , biochemistry , engineering
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 (CO 2 /N 2 ) and hydrogen purification (CO 2 /H 2 ).