HIGH FLUX HOLLOW FIBER MEMBRANE
    56.
    发明申请
    HIGH FLUX HOLLOW FIBER MEMBRANE 审中-公开
    高通量中空纤维膜

    公开(公告)号:WO1994011095A1

    公开(公告)日:1994-05-26

    申请号:PCT/US1993010826

    申请日:1993-11-10

    Abstract: Semipermeable membranes are disclosed for purifying aqueous biological fluids. The membranes are particularly suitable for purifying extracorporeal blood via hemodialysis. The membranes, preferably configured as hollow fibers, are made from a hydrophilic polymeric material, preferably cellulose acetate. Features of the membranes include an ultrafiltration coefficient (KuF) of about 15 to about 55 mL/hr/mmHg/m (thus termed "high-flux" type membranes), a urea mass transfer coefficient (KoV (urea)) of at least 38 x 10 cm/min, and a ratio of KoV(urea)/KuF of at least 2.5 x 10 . Hollow fibers of such membranes suitable for hemodialysis have a lumen diameter of about 175 to about 210 mu m and a wall thickness of about 10 to about 35 mu m. According to disclosed methods for making the membranes, a melt comprising about 32 to about 40 % w/w cellulose acetate, about 5 to about 10 % w/w glycerine, and about 50 to about 65 % w/w polyethylene glycol is extruded to make hollow fibers; the fibers are cooled, cold-stretched, water-leached, and replasticized using a glycerine solution.

    Abstract translation: 公开了半透膜用于纯化含水生物流体。 该膜特别适用于通过血液透析净化体外血液。 优选构造为中空纤维的膜由亲水性聚合材料制成,优选醋酸纤维素。 膜的特征包括约15至约55mL / hr / mmHg / m 2(因此称为“高通量”型膜)的超滤系数(KuF),尿素传质系数(KoV(尿素)) 至少38×10 -3 cm / min,KoV(尿素)/ KuF的比率至少为2.5×10 -3。 适用于血液透析的这种膜的中空纤维具有约175至约210μm的管腔直径和约10至约35μm的壁厚。 根据所公开的制造膜的方法,将包含约32至约40%w / w乙酸纤维素,约5至约10%w / w甘油和约50至约65%w / w聚乙二醇的熔体挤出至 制成中空纤维; 纤维被冷却,冷拉伸,水浸和使用甘油溶液进行复制。

    逆浸透用または正浸透用の中空糸型半透膜
    58.
    发明申请
    逆浸透用または正浸透用の中空糸型半透膜 审中-公开
    用于反渗透或常规渗透的中空纤维半透膜

    公开(公告)号:WO2017122673A1

    公开(公告)日:2017-07-20

    申请号:PCT/JP2017/000623

    申请日:2017-01-11

    Abstract: 液状混合物からの固体分離または溶質分離において低い運転コストで透水性能と除去性能を高いレベルで達成した中空糸型逆浸透膜を提供する。酢酸セルロースからなる逆浸透用または正浸透用の中空糸型半透膜であって、前記酢酸セルロースの6wt/vol%粘度が40~80mPa・sであること、前記中空糸型半透膜の断面外形が円形であり、断面内形が三角形であること、前記断面内形の三角形の頂点部付近の膜厚(最薄膜厚)と、三角形の辺部分の膜厚(最厚膜厚)との比が、0.65以上0.90以下であること、及び前記中空糸型半透膜の中空率が10~50%であることを特徴とする中空糸型半透膜。

    Abstract translation:

    提供了一种中空纤维型在固体分离或溶质分离低操作成本反渗透膜在从液体混合物中较高水平达到透水性和排斥。 用于反渗透或用于由乙酸纤维素的正向渗透的中空纤维半透膜,醋酸纤维素的6它重量/体积%粘度为40〜80毫帕·秒,中空纤维半透膜的横截面 轮廓是圆形的,在形状的横截面为三角形,三角形的形状的横截面的顶部附近的厚度(最里膜厚度),该三角形(SaiAtsumakuAtsu)的侧部的厚度与 其中,中空纤维型半透膜的比例为0.65以上且0.90以下,中空纤维型半透膜的中空率为10〜50%。

    PROCESS DESIGN FOR ACID GAS REMOVAL
    59.
    发明申请
    PROCESS DESIGN FOR ACID GAS REMOVAL 审中-公开
    酸性气体去除工艺设计

    公开(公告)号:WO2017011832A1

    公开(公告)日:2017-01-19

    申请号:PCT/US2016/042800

    申请日:2016-07-18

    Abstract: A membrane permeation system and process accommodates varying acid gas inlet concentrations over time while utilizing only the initially installed equipment and still maintaining the non-permeate gas specification. The system and process provide flexibility to operate efficiently over a wide range of inlet CO 2 concentrations by adjustments to primary permeate, secondary permeate, and recycle gas operations. The glassy polymer membrane devices used in the system and process are selected so removal duty efficiency increases as acid gas concentration increase. Designing the system and process to handle about a 15% increase in acid gas concentrations over initial conditions effectively treats acid gas concentrations well above that 15% increase, thereby eliminating the need for additional equipment or for additional downstream amines and physical solvents.

    Abstract translation: 膜渗透系统和过程随着时间的推移适应不同的酸性气体入口浓度,同时仅利用初始安装的设备并且仍然保持非渗透气体规格。 该系统和过程通过调整主要渗透物,二次渗透物和再循环气体操作,提供了在宽范围的入口CO 2浓度下有效操作的灵活性。 选择在系统和方法中使用的玻璃状聚合物膜装置,因为随着酸性气体浓度的增加,去除负荷效率增加。 设计系统和过程以处理酸性气体浓度在初始条件下约15%的增加有效地处理了高于15%的酸性气体浓度,从而消除了对附加设备或其他下游胺和物理溶剂的需要。

    METHODS AND APPARATUSES FOR FUEL GAS CONDITIONING VIA MEMBRANES
    60.
    发明申请
    METHODS AND APPARATUSES FOR FUEL GAS CONDITIONING VIA MEMBRANES 审中-公开
    燃料气体通过膜的调节方法和装置

    公开(公告)号:WO2017007688A1

    公开(公告)日:2017-01-12

    申请号:PCT/US2016/040519

    申请日:2016-06-30

    Applicant: UOP LLC

    Abstract: A method for conditioning natural gas into fuel gas, where the method includes the step of: delivering a natural gas stream including both CO 2 and C2+ hydrocarbons to a membrane separation assembly; and separating the natural gas stream into the following streams: (i) a first permeate stream, (ii) a second permeate stream, and (iii) a residual stream. The first permeate stream includes CO 2 removed from the natural gas stream. The second permeate stream includes methane at a greater concentration than a concentration of methane in the natural gas stream. The residual stream contains C2+ hydrocarbons at a greater concentration than a concentration of C2+ hydrocarbons in the natural gas stream.

    Abstract translation: 将天然气调节成燃料气体的方法,其中所述方法包括以下步骤:将包括CO 2和C 2 +烃的天然气流输送到膜分离组件; 并将天然气流分离成以下物流:(i)第一渗透物流,(ii)第二渗透物流,和(iii)残余物流。 第一渗透物流包括从天然气流中除去的CO 2。 第二渗透物流包括比天然气流中的甲烷浓度更高的甲烷。 残余物流含有比天然气流中C2 +烃浓度更高浓度的C2 +烃。

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