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    • 44. 发明公开
    • A METHOD OF MAKING A SUPPORTED GAS SEPARATION MEMBRANE
    • VERFAHREN ZUR HERSTELLUNG EINERGETRÄGERTENGASTRENNUNGSMEMBRAN
    • EP3129130A1
    • 2017-02-15
    • EP15717390.7
    • 2015-04-08
    • Shell Internationale Research Maatschappij B.V.
    • SAUKAITIS, John CharlesPRECISE, Eric
    • B01D67/00B01D69/04B01D71/02
    • Methods for preparing a gas separation membrane system can include depositing a gas-selective membrane layer upon a surface of a tubular porous support, annealing the gas-selective membrane layer to form an annealed gas-selective membrane layer, polishing the annealed gas-selective membrane layer under a controlled polishing condition to form an abraded membrane surface, depositing another gas-selective membrane layer upon the abraded membrane surface of the tubular porous support, and successively iterating the annealing, polishing and depositing operations until a leak-tight membrane system is formed. The controlled polishing condition comprises utilizing a rotary fibrous buff that includes a plurality of abrasive particles adhered to a fibrous support with a polymeric binder.
    • 制备气体分离膜系统的方法可以包括在管状多孔载体的表面上沉积气体选择性膜层,退火气体选择性膜层以形成退火气体选择性膜层,抛光退火气体选择性膜 层,以形成磨损的膜表面,将另一种气体选择性膜层沉积在管状多孔载体的磨损膜表面上,并连续迭代退火,抛光和沉积操作,直到形成密封膜系统 。 受控的抛光条件包括利用旋转纤维抛光器,其包括用聚合物粘合剂粘附到纤维状载体上的多个磨料颗粒。
    • 45. 发明公开
    • PROCESS FOR THE SEPARATION OF MONOETHYLENE GLYCOL AND 1,2-BUTANEDIOL
    • 1,2-BUTANEDIOL VERFAHREN ZUR TRENNUNG VON MONOETHYLINGLYKOL
    • EP3126315A1
    • 2017-02-08
    • EP15713767.0
    • 2015-04-02
    • Shell Internationale Research Maatschappij B.V.
    • HUIZENGA, PieterSANDERS, Charles-Edouard
    • C07C29/82C07C31/20
    • C07C29/82B01D3/143B01D3/36C07C31/202C07C31/207
    • The invention provides a process for separating monoethylene glycol from a mixture comprising monoethylene glycol and 1,2-butanediol, said process comprising the steps of: a. providing a first stream comprising monoethylene glycol and 1,2-butanediol to a first distillation zone operated at a first pressure and under conditions to remove a first bottoms stream comprising 1,2-butanediol and to remove a first azeotrope of monoethylene glycol and 1,2-butanediol from the first distillation zone as a first overheads stream; b. withdrawing said first overheads stream from said first distillation zone; and c. providing said first overheads stream to a second distillation zone operated at a second pressure higher than said first pressure and under conditions to remove a second bottoms stream comprising monoethylene glycol and providing a second azeotrope of monoethylene glycol and 1,2-butanediol as a second overheads stream; d. withdrawing said second overheads stream from the second distillation zone and providing it to the first distillation zone as at least a portion of the first stream comprising monoethylene glycol and 1,2-butanediol, e. wherein the mixture comprising monoethylene glycol and 1,2-butanediol is initially provided to at least one of the first distillation zone and the second distillation zone.
    • 本发明提供了从包含单乙二醇和1,2-丁二醇的混合物中分离单乙二醇的方法,所述方法包括以下步骤:a。 提供包含单乙二醇和1,2-丁二醇的第一物流到在第一压力下操作的第一蒸馏区,并且在除去包含1,2-丁二醇的第一塔底物流和除去第一单乙二醇和1的共沸物的条件下, 来自第一蒸馏区的2-丁二醇作为第一塔顶馏出物; 湾 从所述第一蒸馏区抽出所述第一塔顶馏出物流; 和c。 将第一塔顶馏出物料流提供给第二蒸馏区,该第二蒸馏区在高于所述第一压力的第二压力下操作,并且在除去包含单乙二醇的第二塔底物流的条件下,并提供第二共沸物单乙二醇和1,2-丁二醇作为第二塔顶馏出物 流; 天。 从所述第二蒸馏区抽出所述第二塔顶馏出物流并将其提供给所述第一蒸馏区,其中所述第一物流的至少一部分包含单乙二醇和1,2-丁二醇, 其中包含单乙二醇和1,2-丁二醇的混合物最初提供给第一蒸馏区和第二蒸馏区中的至少一个。