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10 条记录 (耗时 0.016 秒)

    METHOD FOR ABSORBING GASEOUS OXIDISABLE OR REDUCIBLE CONSTITUENTS THROUGH A MEMBRANE
    4.
    发明公开
    METHOD FOR ABSORBING GASEOUS OXIDISABLE OR REDUCIBLE CONSTITUENTS THROUGH A MEMBRANE 失效
    程序用于吸收气态可氧化或可还原成分由Reed

    公开(公告)号：EP0871535A1

    公开(公告)日：1998-10-21

    申请号：EP96922282.0

    申请日：1996-07-05

    申请人： Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO

    发明人： JANSEN, Albert, Edward ,  FERON, Paul, Hubert, Maria

    IPC分类号： B01D53

    CPC分类号： B01D53/72 ,  B01D53/229 ,  B01D53/46 ,  B01D53/52 ,  B01D53/64 ,  B01D2251/10 ,  B01D2251/20 ,  B01D2257/104 ,  B01D2257/602

    摘要： The invention relates to a method for removing gaseous oxidisable constituents from a gas phase, wherein the oxidisable constituents are absorbed in a liquid phase which contains an oxidising agent for the gaseous oxidisable constituents, the gas phase and the liquid phase being fed on either side along a membrane which is permeable to the constituents to be absorbed. The invention also relates to a method for performing membrane gas absorption, wherein the gas phase contains at least one gaseous oxidisable constituent, the liquid phase contains at least one oxidising agent, such that at least one of the oxidisable gaseous constituents is absorbed into the liquid phase, an oxidation/reduction reaction between the gaseous constituents and the oxidising agent taking place in at least one step. The invention is preferably employed in the removal of ethene during the storage of fruit, the removal of mercury (vapour) from natural gas and the removal of H2S, at concentrations of 0.001-10 mg/m3. The membranes are preferably in the form of hollow fibres.

    METHOD FOR GAS ABSORPTION ACROSS A MEMBRANE
    10.
    发明公开
    METHOD FOR GAS ABSORPTION ACROSS A MEMBRANE 失效
    方法用于气体膜吸收

    公开(公告)号：EP0751815A1

    公开(公告)日：1997-01-08

    申请号：EP95912513.0

    申请日：1995-03-24

    申请人： NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO

    发明人： JANSEN, Albert, Edward ,  FERON, Paul, Hubert, Maria

    IPC分类号： B01D53

    CPC分类号： B01D53/1493 ,  B01D53/1468 ,  B01D53/1475 ,  B01D53/229 ,  Y02C10/06 ,  Y02C10/10

    摘要： The invention relates to a method for the absorption of one or more gaseous components from a gas phase, in that the gas phase with the component(s) to be absorbed present therein is brought into contact with a liquid phase, wherein the gas phase and the liquid phase are separated by a hydrophobic membrane of a material other than polytetrafluoroethene, wherein the liquid phase comprises water and a water-miscible and/or water-soluble absorbent, and wherein the liquid phase does not give rise to any leakage from the membrane or is effective in preventing or counteracting leakage from the membrane. According to a first preferred aspect, the liquid phase comprises water and a water-miscible and/or water-soluble organic absorbent, wherein the surface tension at 20 °C has been brought to at least 60 x 10-3 N/m by adding a water-soluble salt. According to a second preferred aspect, the liquid phase comprises an aqueous solution of a water-soluble amino acid or a salt thereof, such as taurine and derivatives. According to a third preferred aspect, the liquid phase comprises an aqueous solution of a water-soluble phosphate salt. The membranes are preferably in the form of hollow fibres of, for example, polypropene or polyethene. The method is suitable in particular for the absorption of carbon dioxide.