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    • 6. 发明授权
    • Hydrous gel membranes for gas separation
    • 用于气体分离的水凝胶膜
    • US5409525A
    • 1995-04-25
    • US128098
    • 1993-09-29
    • Shingo KazamaChiyoshi Kamizawa
    • Shingo KazamaChiyoshi Kamizawa
    • B01D69/02B01D53/22B01D61/38B01D69/00B01D69/10B01D69/14B01D71/64B01D71/68B01D71/82
    • B01D61/38B01D53/228B01D69/10B01D69/142B01D71/64B01D71/68Y02C10/10
    • This invention relates to hydrous gel membranes for gas separation which comprise support membranes formed by solvent-soluble polymeric materials containing in their repeating unit a bulky structural part and hydrophilic functional groups represented by the following general formula (1) ##STR1## (R.sub.1, R.sub.2, R.sub.3, and R.sub.4 designate hydrogen, alkyl group, and halogen and R.sub.5 and R.sub.6 designate any one of --H, --SO.sub.3 H, --COOH, and --OH) and water or an aqueous solution of substances with affinity for CO.sub.2 substantially uniformly retained in the support membranes. The membranes show not only high CO.sub.2 permeation and CO.sub.2 selectivity but also long-term stable membrane performance and ease of fabricability into membranes and are capable of recovering a large volume of CO.sub.2 generated at stationary sites efficiently at low cost.
    • 本发明涉及用于气体分离的含水凝胶膜,其包含由溶剂可溶性聚合材料形成的支撑膜,所述支撑膜以其重复单元包含大体积结构部分和由以下通式(1)表示的亲水官能团: R 1,R 2,R 3和R 4表示氢,烷基和卤素,R 5和R 6表示-H,-SO 3 H,-COOH和-OH中的任何一个)和基本上对CO 2具有亲和性的物质的水溶液 均匀地保留在支撑膜中。 该膜不仅具有高的二氧化碳渗透和二氧化碳选择性,而且具有长期稳定的膜性能和易于制膜的性能,并且能够以低成本有效回收固定位置产生的大量二氧化碳。