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    SELF CROSS-LINKABLE AND SELF CROSS-LINKED AROMATIC POLYIMIDE MEMBRANES FOR SEPARATIONS
    1.
    发明申请
    SELF CROSS-LINKABLE AND SELF CROSS-LINKED AROMATIC POLYIMIDE MEMBRANES FOR SEPARATIONS 审中-公开
    自动交联和自动交联的芳族聚酰亚胺隔离膜

    公开(公告)号：WO2015047702A1

    公开(公告)日：2015-04-02

    申请号：PCT/US2014/054506

    申请日：2014-09-08

    Applicant: UOP LLC

    Inventor： LIU, Chunqing ,  OSMAN, Zara ,  TROXELL, Angela N.

    IPC: C08G73/10 ,  C08L79/08 ,  C08J5/22 ,  B01D71/64

    CPC classification number: B01D71/64 ,  B01D67/0006 ,  B01D2323/08 ,  B01D2323/30 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/1067

    Abstract: This invention relates to self-cross-linkable and self-cross-linked aromatic polyimide polymers, their membranes and methods for making and using these polymers and membranes. The self-cross-linkable aromatic polyimide polymer described in the present invention comprises both hydroxyl functional groups and carboxylic acid functional groups. The self-cross-linked aromatic polyimide was formed via heating the self-cross-linkable aromatic polyimide polymer at ≤ 300°C. The self-cross-linked aromatic polyimide membranes exhibit high selectivity in separation of mixtures of gases and liquids.

    Abstract translation: 本发明涉及自交联和自交联的芳族聚酰亚胺聚合物，它们的膜和制备和使用这些聚合物和膜的方法。 本发明中描述的自交联芳族聚酰亚胺聚合物包含羟基官能团和羧酸官能团。 自交联芳族聚酰亚胺通过在300℃下加热自交联芳香族聚酰亚胺聚合物形成。 自交联芳族聚酰亚胺膜在气体和液体混合物的分离中表现出高选择性。

    HIGH HYDROCARBON RESISTANT CHEMICALLY CROSS-LINKED AROMATIC POLYIMIDE MEMBRANE FOR SEPARATIONS
    2.
    发明申请
    HIGH HYDROCARBON RESISTANT CHEMICALLY CROSS-LINKED AROMATIC POLYIMIDE MEMBRANE FOR SEPARATIONS 审中-公开
    用于分离的高耐油化学交联的芳香族聚酰胺膜

    公开(公告)号：WO2014209701A1

    公开(公告)日：2014-12-31

    申请号：PCT/US2014/042850

    申请日：2014-06-18

    Applicant: UOP LLC

    Inventor： LIU, Chunqing ,  OSMAN, Zara

    IPC: C08G73/10 ,  C08J5/22 ,  B01D71/64 ,  B01D67/00

    CPC classification number: C08J3/247 ,  B01D53/228 ,  B01D61/025 ,  B01D61/145 ,  B01D67/0006 ,  B01D67/0088 ,  B01D69/125 ,  B01D71/64 ,  B01D2323/08 ,  B01D2323/30 ,  B01D2325/20 ,  C08J2379/08 ,  Y02C20/20

    Abstract: This invention relates to high hydrocarbon resistant chemically cross-linked aromatic polyimide polymers, membranes and methods for making and using these polymers and membranes. The high hydrocarbon resistant chemically cross-linked aromatic polyimide membrane described in the present invention comprises a plurality of repeating units of a first aromatic polyimide comprising hydroxyl groups cross-linked with a second aromatic polyimide comprising carboxylic acid groups via covalent ester bonds. These membranes exhibit high permeability and selectivity in separation of mixtures of gases and liquids.

    Abstract translation: 本发明涉及高耐烃化学交联芳族聚酰亚胺聚合物，膜和制造和使用这些聚合物和膜的方法。 本发明描述的高耐烃化学交联芳族聚酰亚胺膜包含多个重复单元，其包含通过共价酯键与包含羧酸基团的第二芳族聚酰亚胺交联的羟基的第一芳族聚酰亚胺。 这些膜在气体和液体混合物的分离中表现出高的渗透性和选择性。

    MITIGATION OF SOLUTION CROSS-OVER USING DIFFERENTIAL ELECTROLYTE FORMULATIONS IN REDOX FLOW BATTERY SYSTEMS
    7.
    发明申请
    MITIGATION OF SOLUTION CROSS-OVER USING DIFFERENTIAL ELECTROLYTE FORMULATIONS IN REDOX FLOW BATTERY SYSTEMS 审中-公开

    公开(公告)号：WO2023049700A1

    公开(公告)日：2023-03-30

    申请号：PCT/US2022/076713

    申请日：2022-09-20

    Applicant: UOP LLC

    Inventor： OSMAN, Zara ,  KENDER, William T.

    IPC: H01M8/18 ,  H01M8/24

    Abstract: A redox flow battery system having decreased cross-over of active species and decreased hydrogen generation, which is particularly important with less expensive polyethylene or polypropylene membranes. The redox flow battery system comprises at least one rechargeable cell comprising a positive electrolyte, a negative electrolyte, and a separator positioned between the positive electrolyte and the negative electrolyte. The positive electrolyte is in contact with a positive electrode, and the negative electrolyte is in contact with a negative electrode. The positive and negative electrolytes comprise water and a metal precursor, and the concentration of the metal precursor in the negative electrolyte is greater than the concentration of the metal precursor in the positive electrolyte. The metal in the metal precursor comprises iron, copper, zinc manganese, titanium, tin, silver, vanadium, or cerium.

    METHOD FOR REFRESHING ASYMMETRIC MIXED SOLUTION FOR REDOX FLOW BATTERIES
    8.
    发明申请
    METHOD FOR REFRESHING ASYMMETRIC MIXED SOLUTION FOR REDOX FLOW BATTERIES 审中-公开

    公开(公告)号：WO2023049702A1

    公开(公告)日：2023-03-30

    申请号：PCT/US2022/076715

    申请日：2022-09-20

    Applicant: UOP LLC

    Inventor： KENDER, William T. ,  OSMAN, Zara

    IPC: H01M8/18 ,  H01M8/04186 ,  H01M8/04276 ,  H01M8/04791

    Abstract: A method of refreshing an asymmetric redox flow battery system is described. The redox flow battery system comprises: at least one rechargeable cell comprising a positive electrolyte, a negative electrolyte, and a separator positioned between the positive electrolyte and the negative electrolyte, the positive electrolyte in contact with a positive electrode, and the negative electrolyte in contact with a negative electrode; the positive electrolyte comprising water and a metal precursor and having a volume; the negative electrolyte comprising water and the metal precursor and having a volume; the negative electrolyte having a concentration of the metal precursor greater than a concentration of the metal precursor in the positive electrolyte. The flow of mixed electrolyte past the negative electrode is prevented, and the negative electrolyte and positive electrolyte are mixed together. The mixed solution is reapportioned to the negative and positive sides based on the initial negative and positive electrolyte volumes. Flow of the refreshed negative electrolyte past the negative electrode is then resumed.

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