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公开(公告)号：US10150086B2
公开(公告)日：2018-12-11
申请号：US15535256
申请日：2015-12-11
申请人： NOK Corporation
IPC分类号： B01D53/22 , B01D69/08 , D01F9/24 , B01D67/00 , B01D71/02 , B05D1/00 , D01D1/02 , D01D5/24 , D01D10/02 , B01D69/14
摘要： A hollow fiber carbon membrane is produced by preparing a membrane-forming dope for carbon membranes by dissolving polyphenylene oxide in an amount giving a concentration of 15 to 40 wt. % in the membrane-forming dope, and sulfur in an amount giving a ratio of 0.2 to 3.0 wt. % based on the polyphenylene oxide, in a solvent capable of dissolving these components; preparing the membrane-forming dope for carbon membranes into a hollow shape by means of a spinning method in accordance with a non-solvent induced separation method using a double annular nozzle; performing a crosslinking treatment at 200 to 240° C. in the air; then performing an infusibilization treatment by heating at 250 to 350° C.; and further performing a carbonization treatment by heating at 450 to 850° C. in an inert atmosphere or under vacuum.
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公开(公告)号：US10150085B2
公开(公告)日：2018-12-11
申请号：US15515940
申请日：2015-10-09
申请人： NOK CORPORATION
摘要： A membrane-forming dope for carbon membranes, comprising polyphenylene oxide in an amount giving a concentration of 15 to 40 wt. % in the membrane-forming dope, and sulfur in an amount giving a ratio of 0.1 to 5.0 wt. %, preferably 0.2 to 3.0 wt. %, of the total weight of the polyphenylene oxide and the sulfur, both of which are dissolved in a solvent that can dissolve these components. A hollow fiber carbon membrane is produced by molding the membrane-forming dope for carbon membranes in a hollow shape by means of a wet or dry-wet spinning method using a double tubular nozzle, subjecting the molded product to an infusibilization treatment by heating at 150 to 350° C. in the air, and then subjecting it to a carbonization treatment by heating at 600 to 800° C. in an inert atmosphere or under vacuum. When the product molded in a hollow shape by means of a wet or dry-wet spinning method is subjected to an infusibilization treatment by heating in the air while stretching the product with a stress of 0.002 to 0.005 MPa, a hollow fiber carbon membrane having excellent gas permeability and a further high gas separation factor (He/CH4) can be obtained.
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公开(公告)号：US20160008770A1
公开(公告)日：2016-01-14
申请号：US14769062
申请日：2014-02-26
申请人： NOK Corporation
发明人： Hirokazu Yamamoto , Yusuke Ikawa , Yutaka Koda
CPC分类号： B01D71/021 , B01D69/08 , B01D69/087 , B01D71/60 , B01D2323/08 , D01D5/06 , D01D5/24 , D01D5/34 , D01F9/24 , D10B2331/06 , D10B2401/10
摘要： Disclosed is a method for producing a hollow fiber carbon membrane using a hollow fiber carbon membrane-forming material by means of a dry method or dry-wet method comprising a spinning step, a drying step, an infusibilization step, and a carbonization step as basic steps; wherein in the infusibilization step, heat treatment is performed at least two times at different temperatures, with the second temperature being higher than the first temperature. It is preferable that the second heat treatment is performed directly after the first treatment is performed, without once cooling to room temperature. The obtained hollow fiber carbon membrane has improved permeability, without reducing its separation coefficient.
摘要翻译： 本发明公开了一种使用中空纤维碳膜形成材料的中空纤维碳膜形成材料的干法或干湿法的制造方法，该方法包括纺丝工序，干燥工序，熔融工序，碳化工序，为碱 脚步; 其中在所述不熔化步骤中，在不同温度下进行至少两次热处理，其中所述第二温度高于所述第一温度。 优选在进行第一处理之后直接进行第二热处理，一旦冷却至室温。 所得中空纤维碳膜的渗透性提高，分离系数不降低。
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公开(公告)号：US20150107454A1
公开(公告)日：2015-04-23
申请号：US14400058
申请日：2013-04-12
申请人： NOK Corporation
CPC分类号： B01D63/02 , B01D71/021 , B01D2313/04 , B01D2313/20 , B01D2313/21
摘要： A hollow fiber membrane module comprising a bundling tube including a body part and head parts placed at both terminals of the body part and O-rings with which the bundling tube is fitted into a housing being attached to outer circumferential surfaces of the head parts, wherein at least one of the head parts are divided into two in a place closer to a terminal of the bundling tube than places where the O-rings are attached while maintaining a cylindrical shape of the head part, and the divided parts have a slidable structure while maintaining a coupled condition therebetween that forms the cylindrical shape. The hollow fiber membrane module is capable of preventing damage effectively on a hollow fiber membrane or the bundling tube due to expansion or contraction of the hollow fiber membrane to be caused by change of an external environment such as temperature.
摘要翻译： 一种中空纤维膜组件，包括：捆扎管，其包括主体部分和位于所述主体部分的两个端部处的头部部分，以及将所述捆扎管装配到壳体中的O形环附接到所述头部的外周表面， 在保持头部的圆筒形状的同时，将头部中的至少一个在与捆扎管的端子更接近的端部分割成两个，并且分割的部分具有可滑动的结构，同时 保持它们之间的耦合状态，形成圆柱形状。 中空纤维膜组件能够防止中空纤维膜或由于外部环境（如温度）的变化引起的中空纤维膜的膨胀或收缩导致的中空纤维膜或束管的损伤。
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公开(公告)号：US09427708B2
公开(公告)日：2016-08-30
申请号：US14400058
申请日：2013-04-12
申请人： NOK Corporation
CPC分类号： B01D63/02 , B01D71/021 , B01D2313/04 , B01D2313/20 , B01D2313/21
摘要： A hollow fiber membrane module comprising a bundling tube including a body part and head parts placed at both terminals of the body part and O-rings with which the bundling tube is fitted into a housing being attached to outer circumferential surfaces of the head parts, wherein at least one of the head parts are divided into two in a place closer to a terminal of the bundling tube than places where the O-rings are attached while maintaining a cylindrical shape of the head part, and the divided parts have a slidable structure while maintaining a coupled condition therebetween that forms the cylindrical shape. The hollow fiber membrane module is capable of preventing damage effectively on a hollow fiber membrane or the bundling tube due to expansion or contraction of the hollow fiber membrane to be caused by change of an external environment such as temperature.
摘要翻译： 一种中空纤维膜组件，包括：捆扎管，其包括主体部分和位于所述主体部分的两个端部处的头部部分，以及将所述捆扎管装配到壳体中的O形环附接到所述头部的外周表面， 在保持头部的圆筒形状的同时，将头部中的至少一个在与捆扎管的端子更接近的端部分割成两个，并且分割的部分具有可滑动的结构，同时 保持它们之间的耦合状态，形成圆柱形状。 中空纤维膜组件能够防止中空纤维膜或由于外部环境（如温度）的变化引起的中空纤维膜的膨胀或收缩导致的中空纤维膜或束管的损伤。
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公开(公告)号：US09731250B2
公开(公告)日：2017-08-15
申请号：US14769062
申请日：2014-02-26
申请人： NOK Corporation
发明人： Hirokazu Yamamoto , Yusuke Ikawa , Yutaka Koda
CPC分类号： B01D71/021 , B01D69/08 , B01D69/087 , B01D71/60 , B01D2323/08 , D01D5/06 , D01D5/24 , D01D5/34 , D01F9/24 , D10B2331/06 , D10B2401/10
摘要： Disclosed is a method for producing a hollow fiber carbon membrane using a hollow fiber carbon membrane-forming material by means of a dry method or dry-wet method comprising a spinning step, a drying step, an infusibilization step, and a carbonization step as basic steps; wherein in the infusibilization step, heat treatment is performed at least two times at different temperatures, with the second temperature being higher than the first temperature. It is preferable that the second heat treatment is performed directly after the first treatment is performed, without once cooling to room temperature. The obtained hollow fiber carbon membrane has improved permeability, without reducing its separation coefficient.
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