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    • 4. 发明申请
    • MIXED MATRIX MEMBRANES CONTAINING ION-EXCHANGED MOLECULAR SIEVES
    • 含有离子交换分子筛的混合基质膜
    • WO2009158157A3
    • 2010-04-29
    • PCT/US2009046071
    • 2009-06-03
    • UOP LLCLIU CHUNQINGMOSCOSO JAIME GSERBAYEVA RAISAWILSON STEPHEN TLESCH DAVID A
    • LIU CHUNQINGMOSCOSO JAIME GSERBAYEVA RAISAWILSON STEPHEN TLESCH DAVID A
    • B01D71/00B01D69/00
    • B01D71/028B01D67/0079B01D69/148B01D2323/21B01D2323/36B01D2325/16
    • The present invention discloses mixed matrix membranes (MMMs) comprising ion-exchanged molecular sieves such as UZM-5 zeolite ion-exchanged with Li+ cation (Li-UZM 5) and a continuous polymer matrix and methods for making and using these membranes. These MMMs, comprising ion-exchanged molecular sieves, in the form of symmetric dense films, asymmetric flat sheets, asymmetric hollow fibers, or thin-film composites, have exhibited simultaneously increased selectivity and permeability (or permeance) over polymer-only membranes and the mixed matrix membranes made from molecular sieves that have not been ion exchanged for gas separations. These MMMs are suitable for a variety of liquid, gas, and vapor separations such as desalination of water by reverse osmosis, deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO2/CH4, CO2/N2, H2/CH4, O2/N2, olefin/paraffin, iso/normal paraffins separations, and other light gas mixture separations.
    • 本发明公开了包含离子交换分子筛(例如与Li +阳离子(Li-UZM 5)离子交换的UZM-5沸石)和连续聚合物基质的混合基质膜(MMM)以及制备和使用这些膜的方法。 这些包含离子交换分子筛,以对称致密膜,不对称平板,不对称中空纤维或薄膜复合材料形式的MMM已经显示出与聚合物膜相比增加的选择性和渗透性(或渗透性),并且 由分子筛制成的未经离子交换进行气体分离的混合基质膜。 这些MMM适用于各种液体,气体和蒸汽分离,如通过反渗透脱水,汽油和柴油燃料的深度脱硫,乙醇/水分离,水/有机混合物的渗透蒸发脱水,CO 2 / CH 4,CO 2 / N2,H2 / CH4,O2 / N2,烯烃/石蜡,异/正链烷烃分离和其他轻质气体混合物分离。