Abstract In this study, Pebax@1657/glycerol/polyethylene glycol 200/iron-nickel oxide quaternary mixed matrix membranes (MMMs) were prepared, to enhance the gas separation permeation of Pebax@1657 copolymer membrane, by utilizing the high miscibility of all the membrane material components and the strong affinity between CO2and glycerol/ethylene glycol200 additives and also with iron-nickel oxide filler. The resultant membranes were examined for CO2/CH4 and CO2/N2gas separation at 35°C and feed pressures of 2-10 bar. These membranes were also characterized by FTIR-ATR, DSC, FE-SEM, XRD and XRF and the tensile test. Incorporation of these additives in the pure Pebax@1657 membrane significantly improved the separation performance ofneat membrane. For example, Pebax@1657/glycerol 15 wt.%/PEG 200 20 wt.%, containing 3 wt.% of NiFe2O4 nanoparticles exhibited the best gas separation performance for CO2/CH4and CO2/N2 gas pairs. At feed pressure of 10 bar and 35oC,CO2 permeability increased from 148.79 of pristine Pebax@1657 membrane to 269.61 (about 81.2%). CO2/N2selectivity increased from 40.96 to 273.41(about 567.5%) and CO2/CH4selectivity enhanced from 32.11 to 66.17 (about 106%).

中文翻译：

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四元混合基质膜加速膜基气体分离

摘要 本研究制备了 Pebax@1657/甘油/聚乙二醇 200/氧化铁镍四元混合基质膜（MMMs），以提高 Pebax@1657 共聚物膜的气体分离渗透性，利用所有的高混溶性。膜材料成分和CO2与甘油/乙二醇200添加剂之间的强亲和力以及与铁镍氧化物填料之间的强亲和力。在35℃和2-10巴的进料压力下检查所得膜的CO 2 /CH 4 和CO 2 /N 2 气体分离。这些膜还通过 FTIR-ATR、DSC、FE-SEM、XRD 和 XRF 以及拉伸试验进行了表征。在纯 Pebax@1657 膜中加入这些添加剂显着提高了纯膜的分离性能。例如，Pebax@1657/甘油 15 wt.%/PEG 200 20 wt.%，含有 3 wt.%。%的 NiFe2O4 纳米粒子对 CO2/CH4 和 CO2/N2 气体对表现出最佳的气体分离性能。在 10 bar 和 35oC 的进料压力下，CO2 渗透率从原始 Pebax@1657 膜的 148.79 增加到 269.61（约 81.2%）。CO2/N2 选择性从 40.96 增加到 273.41（约 567.5%），CO2/CH4 选择性从 32.11 增加到 66.17（约 106%）。