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    SOUR GAS MEMBRANE TREATMENT PROCESS INCLUDING DEHYDRATION
    11.
    发明公开
    SOUR GAS MEMBRANE TREATMENT PROCESS INCLUDING DEHYDRATION 失效
    方法为酸性气体，用膜，EINSCHLÜSSLICH谁的排水处理

    公开(公告)号：EP0725670A1

    公开(公告)日：1996-08-14

    申请号：EP94931971.0

    申请日：1994-10-21

    申请人： MEMBRANE TECHNOLOGY AND RESEARCH, INC.

    发明人： LOKHANDWALA, Kaaeid, A. ,  BAKER, Richard, W. ,  TOY, Lora, G. ,  AMO, Karl, D.

    IPC分类号： B01D53

    CPC分类号： B01D53/228 ,  B01D53/22 ,  B01D53/268 ,  B01D2257/304

    摘要： Improved membranes and improved membrane processes for treating gas streams containing hydrogen sulfide and methane, plus water vapor, carbon dioxide or both. The processes rely on th availability of two membrane of two membrane types, one of which has a high hydrogen sulfide/methane selectivity and a high water vapor/methane selectivity, when measured with multicomponent gas mixtures at high pressures. Based on the different permeation properties of the two membrane types, optimized separation processes can be designed. In favorable cases, the processes can simultaneously dehydrate the gas stream and remove the hydrogen sulfide to very low levels.

    MEMBRANE MODULE
    12.
    发明授权
    MEMBRANE MODULE 无效
    MEMBRANMODUL。

    公开(公告)号：EP0548281B1

    公开(公告)日：1995-08-02

    申请号：EP91918919.1

    申请日：1991-09-10

    申请人： MEMBRANE TECHNOLOGY AND RESEARCH, INC.

    发明人： KASCHEMEKAT, Jürgen ,  BAKER, Richard, W. ,  WIJMANS, Johannes, G.

    IPC分类号： B01D61/36

    CPC分类号： B01D61/362 ,  B01D63/10

    摘要： A spiral-wound pervaporation module, incorporating membrane envelopes (2), within and between which are channels through which the feed and permeate streams flow. The feed and permeate channels are created by feed spacers (3) and permeate spacers (4). The module is unconventional in that the permeate spacer is tailored for optimum permeate flow throughput, based on the discovery that the total permeate flow throughput passes through a maximum as the resistance to vapor transport of the permeate spacer material is progressively decreased. The resistance to vapor transport along the permeate channel is kept below a value at which it has a significant adverse effect on the membrane flux and the membrane separation properties, yet at the same time the total module throughput is within an optimum range. The increase in throughput per unit membrane area obtained more than compensates for the loss in membrane area brought about by use of a thicker permeate spacer.

    PROCESS FOR RECOVERING ORGANICS FROM LIQUID STREAMS
    13.
    发明公开
    PROCESS FOR RECOVERING ORGANICS FROM LIQUID STREAMS 失效
    PROCESS恢复有机化合物由液体流。

    公开(公告)号：EP0590075A1

    公开(公告)日：1994-04-06

    申请号：EP92914550.0

    申请日：1992-06-19

    申请人： MEMBRANE TECHNOLOGY AND RESEARCH, INC.

    发明人： BAKER, Richard, W. ,  WIJMANS, Johannes, G.

    IPC分类号： B01D17 ,  B01D61 ,  C02F1

    CPC分类号： B01D61/362 ,  B01D17/0208 ,  B01D17/085 ,  C02F1/448

    摘要： A separation process for recovering organic components from liquid streams. The process is a combination of pervaporation and decantation. In cases where the liquid stream contains the organic to be separated in dissolved form, the pervaporation step is used to concentrate the organic to a point above the solubility limit, so that a two-phase permeate is formed and then decanted. In cases where the liquid stream is a two-phase mixture, the decantation step is performed first, to remove the organic product phase, and the residue from the decanter is then treated by pervaporation. Embodiments using two decanters, particularly suited to handling feed streams containing multiple organic compounds of different properties, are included.

    Membrane process for treatement of fluorinated hydrocarbon-laden gas streams
    17.
    发明公开
    Membrane process for treatement of fluorinated hydrocarbon-laden gas streams 失效
    Flukeohlenwasserstoffen beladenenGasströmen的Membranverfahren zur Behandlung von mit

    公开(公告)号：EP0389126A2

    公开(公告)日：1990-09-26

    申请号：EP90302129.3

    申请日：1990-02-28

    申请人： MEMBRANE TECHNOLOGY AND RESEARCH, INC.

    发明人： Wijmans, Johannes G, ,  Baker, Richard W, ,  Bell, Carl-Martin, ,  Ahlers, Bernd,

    IPC分类号： B01D53/22

    CPC分类号： B01D53/22

    摘要： A membrane process for separating fluorinated hydrocarbon vapors is disclosed. The process employs a permselective membrane that is selectively permeable to fluorinated hydrocarbons over oxygen or nitrogen. The process involves contacting the feed side of the membrane with a gas mixture containing the fluorinated hydrocarbon vapor, and withdrawing from the permeate side a vapor enriched in the fluorinated hydrocarbon component. The driving force for membrane permeation is preferably provided by maintaining a partial vacuum on the permeate side of the membrane. Eighty to 99% of the fluorinated hydrocarbon contained in the feedstream can be removed by the process. The permeate may be sufficiently enriched in fluorinated hydrocarbon to permit recovery and reuse. Very high membrane selectivities are not required

    摘要翻译： 公开了用于分离氟化烃蒸气的膜方法。 该方法采用选择性渗透膜，该选择性膜在氟或氮气上选择性渗透氟化烃。 该方法包括使膜的进料侧与含有氟化烃蒸气的气体混合物接触，并且从渗透侧抽出富含氟化烃组分的蒸气。 优选通过在膜的渗透侧保持部分真空来提供膜渗透的驱动力。 通过该方法可以除去原料流中含有的80〜99％的氟化烃。 渗透物可以充分富含氟化烃以允许回收和再利用。 不需要非常高的膜选择性