TY - JOUR ID - 247921 TI - Membrane Application to Gas Separation of Rare Mixtures: A Review JO - Journal of Membrane Science and Research JA - JMSR LA - en SN - AU - Coronas, Joaquín AD - Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50018, Spain Y1 - 2022 PY - 2022 VL - 8 IS - 3 SP - EP - KW - Gas separation KW - Membrane KW - Polymer KW - Helium separation KW - Isotope separation DO - 10.22079/jmsr.2021.542170.1511 N2 - Typically, gas separation with membranes concentrates on mixtures profusely studied, such as CO2/N2, CO2/CH4, H2/CO2, O2/N2, H2/N2, He/CH4, H2/CH4, and certain hydrocarbon mixtures, not addressing some non-common, rare but technologically interesting mixtures. However, membrane technology has the potential to address the efficient separation of such rare mixtures, not reported in the current upper bounds basically due to the lack of experimental studies. This review devotes to the membrane application to mixtures including the following: H2/He, H2/D2, 3He/4He, He/Ne, Kr/Xe, CO2/He, and traces from the air. In most cases, the membrane performance has only been studied from a theoretical point of view suggesting that a lot of work is still needed to eventually think of an industrial operation. In any event, there is no doubt about the fact that the advantages that the membrane technology presents for the most studied and better-established gas separations will contribute to solving the future gas separation of these rare mixtures. UR - https://www.msrjournal.com/article_247921.html L1 - https://www.msrjournal.com/article_247921_54f30d1a14b2a833f8566fa5c6ff5791.pdf ER -