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    • 2. 发明申请
    • COMBINED ACIDIC GAS CAPTURE AND WATER EXTRACTION PROCESS
    • 结合酸性气体捕集与水萃取工艺
    • WO2018039734A1
    • 2018-03-08
    • PCT/AU2017/050941
    • 2017-09-01
    • COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
    • FERON, Paul, Hubert, MariaTHIRUVENKATACHARI, RameshCOUSINS, Ashleigh, Jane
    • B01D53/40B01D53/46B01D53/48B01D53/52B01D53/62B01D53/96
    • 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.
    • 一种从气体流中吸收目标气体组分的方法,其包括以下步骤:使气体流与包含液体吸收剂的吸收器接触以吸收目标气体组分以产生富液体吸收剂 流和非目标气体组分,所述非目标气体组分包括水蒸气; 在解吸器中处理富液体吸收剂流,从而将目标气体组分和水蒸汽组分释放到解吸器气流中并产生贫液体吸收剂流; 以及从水分离器的输出端形成回收水流,以从目标气体组分分离水蒸气,所述水分离器形成吸收器和/或解吸器的一部分。 离开解吸器的贫液体吸收剂流用包含透水膜的正向渗透(FO)膜单元处理,其中膜单元将来自盐水流的水通过透水膜转移到贫液吸收剂流,从而补充 这个过程中至少有部分水被去除了。