Method for Separating Water/Ethanol Using NAA Zeolite Separator
    2.
    发明申请
    Method for Separating Water/Ethanol Using NAA Zeolite Separator 审中-公开
    使用NAA沸石分离器分离水/乙醇的方法

    公开(公告)号:US20150101985A1

    公开(公告)日:2015-04-16

    申请号:US14386034

    申请日:2013-03-20

    IPC分类号: B01D61/36 B01D71/02

    摘要: Disclosed herein are a method of preparing a NaA zeolite membrane for water/ethanol separation, and a method of separating water/ethanol using the same, wherein a water/ethanol mixture is separated by pervaporation using a NaA zeolite membrane employing a dual separation process, including: primary separation for increasing an ethanol concentration to 95˜97 wt % using a membrane having high water selectivity and low flux; and secondary separation for increasing the ethanol concentration to 97˜100 wt % using a membrane having low water selectivity and high flux, thereby obtaining excellent separation efficiency at comparatively low energy.

    摘要翻译: 本文公开了一种制备用于水/乙醇分离的NaA沸石膜的方法,以及使用其分离水/乙醇的方法,其中通过使用双分离方法的NaA沸石膜通过渗透蒸发分离水/乙醇混合物, 包括:使用具有高水选择性和低通量的膜将乙醇浓度提高至95〜97重量%的一次分离; 使用具有低水选择性和高通量的膜将乙醇浓度提高至97〜100重量%的二次分离,从而在较低能量下获得优异的分离效率。