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    Batch Pressure-Driven Membrane Separation with Closed-Flow Loop and Reservoir
    2.
    发明申请
    Batch Pressure-Driven Membrane Separation with Closed-Flow Loop and Reservoir 审中-公开

    公开(公告)号：US20190160431A1

    公开(公告)日：2019-05-30

    申请号：US16199690

    申请日：2018-11-26

    Applicant: Massachusetts Institute of Technology

    Inventor： David Elan Martin Warsinger ,  John H. Lienhard ,  Emily Winona Tow ,  Ronan Killian McGovern ,  Gregory Parker Thiel

    IPC: B01D61/08 ,  B01D61/02 ,  C02F1/44

    Abstract: A feed of at least one of (a) a source liquid including a solvent with a dissolved impurity and (b) a retentate of the source liquid is pumped in a substantially closed loop through a liquid-separation module. The liquid-separation module includes a membrane that passes at least partially purified solvent to a permeate side of the membrane while diverting the impurity in a retentate on the retentate side of the membrane. The purified solvent is extracted from the permeate side of the membrane; and the retentate from the liquid-separation module is pumped to or through a pressurized reservoir with a variable volume for the feed component and recirculated as a component of the feed. Over time, the volume for the feed is reduced and the pressure applied to the feed in the reservoir is increased to balance against an increasing difference in osmotic pressure across the membrane.

    Hydrophobic Air-Gap Membrane Distillation
    7.
    发明申请
    Hydrophobic Air-Gap Membrane Distillation 有权
    疏水空气膜蒸馏

    公开(公告)号：US20160107121A1

    公开(公告)日：2016-04-21

    申请号：US14517342

    申请日：2014-10-17

    Applicant: Massachusetts Institute of Technology

    Inventor： John H. Lienhard ,  David Elan Martin Warsinger ,  Jaichander Swaminathan

    IPC: B01D61/36 ,  C02F1/44

    CPC classification number: B01D61/364 ,  B01D1/0035 ,  B01D3/145 ,  B01D61/36 ,  B01D61/366 ,  B01D69/02 ,  B01D2311/103 ,  B01D2313/22 ,  B01D2313/38 ,  B01D2325/36 ,  B01D2325/38 ,  C02F1/44 ,  C02F1/447 ,  C02F2103/08 ,  C02F2201/002 ,  F28F13/04 ,  Y02W10/37

    Abstract: An energy-efficient liquid-gap distillation apparatus includes a source of a feed liquid; a distillation module comprising: (a) a feed-liquid chamber n fluid communication with the feed-liquid source to establish a flow of the feed liquid there through, wherein the feed-liquid chamber includes a selectively porous material that allows a component of the feed liquid to pass through the selectively porous material and exit the feed-liquid chamber in vapor form but not in liquid form; (b) a condensing surface maintained at a lower temperature than the feed liquid in the feed-liquid chamber, wherein the condensing surface is sufficiently hydrophobic to produce a contact angle with water of at least 150; and (c) a gap between the selectively porous material and the condensing surface. Vapor passing through the membrane can be condensed as jumping droplets at the condensing surface.

    Abstract translation: 节能液体间隙蒸馏装置包括进料液源; 蒸馏模块，包括：（a）进料液室，其与进料液源流体连通，以在其中形成进料液体的流动，其中进料液室包括选择性多孔材料，其允许 进料液体通过选择性多孔材料并以蒸气形式离开进料液室，但不是液体形式; （b）冷凝表面保持在比进料液室中的进料液体更低的温度下，其中冷凝表面足够疏水以产生与水的至少150°的接触角; 和（c）选择性多孔材料和冷凝表面之间的间隙。 通过膜的蒸气可以在冷凝表面作为跳跃液滴而冷凝。

    Batch pressure-driven membrane separation with closed-flow loop and reservoir
    9.
    发明授权
    Batch pressure-driven membrane separation with closed-flow loop and reservoir 有权

    公开(公告)号：US10166510B2

    公开(公告)日：2019-01-01

    申请号：US15350064

    申请日：2016-11-13

    Applicant: Massachusetts Institute of Technology

    Inventor： David Elan Martin Warsinger ,  John H. Lienhard, V ,  Emily Winona Tow ,  Ronan Killian McGovern ,  Gregory Parker Thiel

    IPC: B01D61/08 ,  B01D61/02 ,  C02F1/44

    Abstract: A feed of at least one of (a) a source liquid including a solvent with a dissolved impurity and (b) a retentate of the source liquid is pumped in a substantially closed loop through a liquid-separation module. The liquid-separation module includes a membrane that passes at least partially purified solvent to a permeate side of the membrane while diverting the impurity in a retentate on the retentate side of the membrane. The purified solvent is extracted from the permeate side of the membrane; and the retentate from the liquid-separation module is pumped to or through a pressurized reservoir with a variable volume for the feed component and recirculated as a component of the feed. Over time, the volume for the feed is reduced and the pressure applied to the feed in the reservoir is increased to balance against an increasing difference in osmotic pressure across the membrane.

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