Process and apparatus for heat integrated liquid absorbent regeneration through gas desorption

    公开(公告)号:US10040023B2

    公开(公告)日:2018-08-07

    申请号:US14443377

    申请日:2013-11-22

    Abstract: A process and apparatus for stripping a gas from a gas-rich liquid. The apparatus includes a desorption unit (10) to desorb a gas from the gas-rich liquid to form a first product stream (13) including the gas and a vapor, and a second product stream (14) including a gas-lean liquid. The desorption unit (10) includes a gas-rich liquid inlet (25), a first product stream outlet, and a second product stream outlet. The apparatus further includes at least one of a membrane condenser (22) and/or a membrane (evaporator 17). The membrane condenser (22) includes a membrane interface (26) permeable to the vapor through which vapor transfers from the first product stream to the gas-rich liquid stream and the membrane evaporator (17) includes a membrane interface (18) permeable to the vapor through which vapor transfers to separate a vapor portion from the second product stream (14), and an outlet for a vapor reduced second product stream.

    Combined acidic gas capture and water extraction process

    公开(公告)号:US11033855B2

    公开(公告)日:2021-06-15

    申请号:US16329122

    申请日:2017-09-01

    Abstract: A process for the absorption of a target gaseous component from a gas stream comprising the steps of: contacting the gas stream with an absorber comprising an liquid absorbent for absorbing the target gaseous component to produce a rich liquid absorbent stream and a non target gaseous component, said non target gaseous component including water vapour; treating the rich liquid absorbent stream in a desorber to thereby release the target gaseous component and a water vapour component into a desorber gas stream and produce a lean liquid absorbent stream; and forming a recovered water stream from the output of a water separator for separating the water vapour from the target gaseous component, said water separator forming part of the absorber and/or the desorber. The lean liquid absorbent stream exiting the desorber is treated with a forward osmosis (FO) membrane unit comprising a water permeable membrane, wherein the membrane unit transfers water from a salt water stream through the water permeable membrane to the lean liquid absorbent stream, thereby replenishing at least part of the water removed in the process.

    Process and Apparatus for Heat Integrated Liquid Absorbent Regeneration Through Gas Desorption
    3.
    发明申请
    Process and Apparatus for Heat Integrated Liquid Absorbent Regeneration Through Gas Desorption 审中-公开
    通过气体解吸热集成液体吸收剂再生的工艺和装置

    公开(公告)号:US20150283498A1

    公开(公告)日:2015-10-08

    申请号:US14443377

    申请日:2013-11-22

    Abstract: A process and apparatus for stripping a gas from a gas-rich liquid. The apparatus includes a desorption unit (10) to desorb a gas from the gas-rich liquid to form a first product stream (13) including the gas and a vapour, and a second product stream (14) including a gas-lean liquid. The desorption unit (10) includes a gas-rich liquid inlet (25), a first product stream outlet, and a second product stream outlet. The apparatus further includes at least one of a membrane condenser (22) and/or a membrane (evaporator 17). The membrane condenser (22) includes a membrane interface (26) permeable to the vapour through which vapour transfers from the first product stream to the gas-rich liquid stream and the membrane evaporator (17) includes a membrane interface (18) permeable to the vapour through which vapour transfers to separate a vapour portion from the second product stream (14), and an outlet for a vapour reduced second product stream.

    Abstract translation: 一种用于从富气液体中汽提气体的方法和装置。 该装置包括解吸单元(10),用于从富气体液体中解吸气体以形成包括气体和蒸汽的第一产物流(13),以及包含贫气液体的第二产物流(14)。 解吸单元(10)包括富气体的液体入口(25),第一产物流出口和第二产物流出口。 该装置还包括膜冷凝器(22)和/或膜(蒸发器17)中的至少一个。 膜冷凝器(22)包括可透过蒸气的膜接口(26),蒸汽从第一产物流转移到富气液体物流中,膜蒸发器(17)包括可通过 蒸汽通过其蒸发,以将蒸汽部分与第二产物流(14)分离,以及用于蒸气还原的第二产物流的出口。

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