Novel method for forming a mixed matrix composite membrane using washed molecular sieve particles
    1.
    发明申请
    Novel method for forming a mixed matrix composite membrane using washed molecular sieve particles 审中-公开
    使用洗涤分子筛颗粒形成混合基质复合膜的新方法

    公开(公告)号:US20050230305A1

    公开(公告)日:2005-10-20

    申请号:US11091156

    申请日:2005-03-28

    摘要: This abstract discusses producing mixed matrix composite (MMC) membranes with a good balance of permeability and selectivity. MMC membranes are particularly needed for separating fluids in oxygen/nitrogen separation processes, processes for removing carbon dioxide from hydrocarbons or nitrogen, and the separation of hydrogen from petrochemical and oil refining streams. MMC Membranes made using washed sieve material, such as washed SSZ-13 sieve material, provide surprisingly good permeability and selectivity. The method of the current invention produces a fluid separation membrane by providing a polymer and a washed molecular sieve material, then synthesizing a concentrated suspension of a solvent, the polymer, and the washed molecular sieve material. The concentrated suspension is used to form the fluid separation membrane of the desired configuration. Membranes of the current invention can be formed into hollow fiber membranes that are particularly suitable for high trans-membrane pressure applications.

    摘要翻译: 该摘要讨论了产生具有良好的渗透性和选择性平衡的混合基质复合材料(MMC)膜。 在氧/氮分离过程中分离流体,从碳氢化合物或氮气中除去二氧化碳的过程以及从石化和炼油流中分离氢气特别需要MMC膜。 使用洗涤的筛子材料(例如洗涤的SSZ-13筛选材料)制备的MMC膜提供令人惊讶的良好的渗透性和选择性。 本发明的方法通过提供聚合物和洗涤的分子筛材料,然后合成溶剂,聚合物和洗涤的分子筛材料的浓缩悬浮液来生产流体分离膜。 浓缩悬浮液用于形成所需结构的流体分离膜。 本发明的膜可以形成中空纤维膜,其特别适用于高跨膜压力应用。

    Separation membrane by controlled annealing of polyimide polymers
    2.
    发明申请
    Separation membrane by controlled annealing of polyimide polymers 有权
    通过聚酰亚胺聚合物的控制退火分离膜

    公开(公告)号:US20060196355A1

    公开(公告)日:2006-09-07

    申请号:US11070041

    申请日:2005-03-02

    IPC分类号: B01D53/22

    摘要: This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are needed that provide a resistance to interaction with process components or contaminants, provide the mechanical strength required to withstand high membrane differential pressures and high process temperatures, and exhibit sufficient maximum strain such that membranes are not brittle and can easily be formed into desirable membrane forms. Membranes of polyimide polymers, particularly polyimide polymers sold under the trade name P-84, are annealed in a controlled annealing step to improve the mechanical properties of the polymers used to make separation membranes. The resulting annealed polyimide polymer is used to produce various forms of high strength, chemically resistant membranes, including hollow-fiber membranes that are suitable for high pressure, high temperature applications.

    摘要翻译: 该摘要讨论了分离用于生产富氧空气,富氮空气,用于从碳氢化合物中分离二氧化碳的流体以及从各种石化和炼油流中分离氢气所需的膜。 需要提供与工艺组分或污染物相互作用的阻力的膜,提供耐受高膜差压和高工艺温度所需的机械强度,并且表现出足够的最大应变,使得膜不易脆并且可以容易地形成所需的膜 形式。 聚酰亚胺聚合物膜,特别是以商品名P-84出售的聚酰亚胺聚合物的膜在受控退火步骤中退火,以改善用于制备分离膜的聚合物的机械性能。 所得退火的聚酰亚胺聚合物用于生产各种形式的高强度,耐化学腐蚀的膜,包括适用于高压,高温应用的中空纤维膜。

    Method of Separating Olefins from Mixtures With Paraffins
    3.
    发明申请
    Method of Separating Olefins from Mixtures With Paraffins 有权
    从烯烃与石蜡混合物中分离烯烃的方法

    公开(公告)号:US20070135670A1

    公开(公告)日:2007-06-14

    申请号:US11626419

    申请日:2007-01-24

    IPC分类号: C07C7/144

    CPC分类号: C07C7/144 C07C9/02 C07C11/02

    摘要: A process for the separation or concentration of olefinic hydrocarbons from mixtures of olefinic and paraffinic hydrocarbons uses a polyimide membrane, The process is well suited to separating propylene from propylene/propane mixtures. The novel method The membrane exhibits good resistance to plasticization by hydrocarbon components in the gas mixture under practical industrial process conditions.

    摘要翻译: 从烯烃和链烷烃的混合物中分离或浓缩烯烃的方法使用聚酰亚胺膜。该方法非常适合于从丙烯/丙烷混合物中分离丙烯。 新型方法该膜在实际工业工艺条件下,在气体混合物中表现出良好的耐烃性组分的增塑能力。

    Novel separation membrane made from blends of polyimide with polyamide or polyimide-amide polymers
    4.
    发明申请
    Novel separation membrane made from blends of polyimide with polyamide or polyimide-amide polymers 有权
    新型分离膜由聚酰亚胺与聚酰胺或聚酰胺 - 酰胺聚合物的共混物制成

    公开(公告)号:US20060156920A1

    公开(公告)日:2006-07-20

    申请号:US11036569

    申请日:2005-01-14

    IPC分类号: B01D53/22

    摘要: Membranes are used to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are discussed that provide a resistance to interaction with process components or contaminants, which can lead to plasticizing of the membrane, while providing the mechanical strength required to withstand high membrane differential pressures and high process temperatures. Membranes of blended polymers are used to improve the mechanical strength of the polymers used to make separation membranes. Specifically, polyimide polymers are combined with a blend polymer that is a polyamide and/or a polyamide-imde polymer. The resulting polymer mix is used to produce various forms of high strength, chemically resistant membranes, including hollow-fiber membranes that are suitable for high pressure, high temperature applications.

    摘要翻译: 膜用于分离用于生产富氧空气,富氮空气,用于从碳氢化合物中分离二氧化碳的流体,以及从各种石化和炼油流中分离氢气。 讨论了提供对与过程组分或污染物相互作用的阻力的膜,其可以导致膜的增塑,同时提供承受高膜差压和高过程温度所需的机械强度。 共混聚合物的膜用于提高用于制备分离膜的聚合物的机械强度。 具体地,将聚酰亚胺聚合物与作为聚酰胺和/或聚酰胺 - 聚合物的共混聚合物组合。 所得聚合物混合物用于生产各种形式的高强度,耐化学腐蚀的膜,包括适用于高压,高温应用的中空纤维膜。