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ABSTRACT Low viscosity ionic liquids (ILs) composed of a cation with methoxy group and an aprotic heterocyclic anion (AHA) with highly nucleophilic amino group were synthesized and examined as a… Click to show full abstract
ABSTRACT Low viscosity ionic liquids (ILs) composed of a cation with methoxy group and an aprotic heterocyclic anion (AHA) with highly nucleophilic amino group were synthesized and examined as a CO2 carrier of facilitated transport membranes. Due to the low viscosity of the AHA-type ILs after CO2 absorption, the AHA-type IL-based membrane showed high CO2 permeability (ca. 3900 barrer) with 200 of CO2/CH4 selectivity under dry condition at 323 K, which was much higher than that of amino acid ILs-based membrane (ca. 150 barrer with ca. 50 of CO2/CH4 selectivity).
Journal Title: Separation Science and Technology
Year Published: 2017
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