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公开(公告)号：US5837033A
公开(公告)日：1998-11-17
申请号：US622318
申请日：1996-03-29
Applicant: Salvatore Giglia , Benjamin Bikson
Inventor： Salvatore Giglia , Benjamin Bikson
CPC classification number: B01D63/024 , B01D53/22 , B01D63/021 , B01D63/025 , B01D2313/23
Abstract: The invention comprises an annular hollow fiber membrane module comprising a plurality of helically wound layers of semi-permeable hollow fibers, wherein the fiber wind angle varies across the axial length of the module in one or more layers. In a preferred embodiment, the module has at least one tubesheet region and an active region, and the wind angle in the tubesheet region of the module differs from the wind angle in the active region of the module. A method of making the module, and a separation module which includes the module described above is also disclosed.
Abstract translation: 本发明包括环形中空纤维膜组件，其包括多个螺旋缠绕的半透空心纤维层，其中纤维风角度在模块的一个或多个层的轴向长度上变化。 在优选实施例中，模块具有至少一个管板区域和有源区域，并且模块的管板区域中的风角度与模块的有源区域中的风角度不同。 还公开了制造该模块的方法和包括上述模块的分离模块。
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公开(公告)号：US5181940A
公开(公告)日：1993-01-26
申请号：US739322
申请日：1991-08-01
Applicant: Benjamin Bikson , James T. Macheras , Joyce K. Nelson
Inventor： Benjamin Bikson , James T. Macheras , Joyce K. Nelson
IPC: B01D53/22 , B01D69/08 , B01D71/64 , B01D71/68 , B01D71/70 , D01D5/24 , D01F6/00 , D01F6/74 , D01F6/76
CPC classification number: B01D63/02 , B01D53/22 , B01D63/021 , B01D69/08
Abstract: A process for producing highly asymmetric hollow fibers useful as permselective gas separation membranes and for producing composite membranes thereof by extruding the spinning dope through a tube-in-orifice spinneret into a gas-filled chamber maintained at reduced pressure and then conveying the extruded hollow fiber through a liquid bath to solidify the extrudate.
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公开(公告)号：US5131927A
公开(公告)日：1992-07-21
申请号：US688327
申请日：1991-04-22
Applicant: Benjamin Bikson , Joyce K. Nelson
Inventor： Benjamin Bikson , Joyce K. Nelson
CPC classification number: B01D67/0088 , B01D67/0093 , B01D2323/30
Abstract: This invention relates to methods for producing composite gas separation membranes by treating the gas separation layer of the composite membranes with a treating agent that ionically bonds to the gas separation membrane layer of the treated composite membrane. The invention also relates to the membranes produced and to gas separation processes utilizing the improved membranes.
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公开(公告)号：US4990165A
公开(公告)日：1991-02-05
申请号：US413094
申请日：1989-09-27
Applicant: Benjamin Bikson , James E. Miller , Joyce K. Nelson
Inventor： Benjamin Bikson , James E. Miller , Joyce K. Nelson
CPC classification number: B01D67/0083 , B01D53/228 , B01D69/12
Abstract: Composite membranes are prepared by depositing a separation layer on an asymmetric support layer. The separation layer has a selectivity equal to or greater than that of the material of the asymmetric support layer for a desired gas separation. The support layer is desirable produced in non-asymmetric form, and exposed to an elevated temperature approaching the glass transition temperature of the support layer material under non-swelling conditions to modify the structure thereof to create asymmetry therein, before or after the deposition of the separation layer, and to increase its compaction resistance and collapse pressure. Such desirable properties are conveniently achieved on a repeatable basis, enhancing the uniformity and reliability of the treated support layer and of composite membranes produced therefrom, for use in gas separation operations.
Abstract translation: 通过在不对称支撑层上沉积分离层来制备复合膜。 分离层具有等于或大于不对称支撑层的材料的选择性，用于期望的气体分离。 所需的支撑层以非对称形式生产，并且在非膨胀条件下暴露于接近支撑层材料的玻璃化转变温度的升高温度以改变其结构以在其内沉积之前或之后产生不对称性 分离层，并增加其抗压性和塌陷压力。 在可重复的基础上方便地实现这种期望的性能，从而提高处理的支撑层及其制备的复合膜的均匀性和可靠性，用于气体分离操作。
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公开(公告)号：US4881954A
公开(公告)日：1989-11-21
申请号：US80476
申请日：1987-07-31
Applicant: Benjamin Bikson , James E. Miller , Joyce K. Nelson
Inventor： Benjamin Bikson , James E. Miller , Joyce K. Nelson
CPC classification number: B01D67/0083 , B01D53/228 , B01D69/12
Abstract: Composite membranes are prepared by depositing a separation layer on an asymmetric support layer. The separation layer has a selectivity equal to or greater than that of the material of the asymmetric support layer for a desired gas separation. The support layer is desirably produced in non-asymmetric form, and exposed to an elevated temperature approaching the glass transition temperature of the support layer material under non-swelling conditions to modify the structure thereof to create asymmetry therein, before or after the deposition of the separation layer, and to increase its compaction resistance and collapse pressure. Such desirable properties are conveniently achieved on a repeatable basis, enhancing the uniformity and reliability of the treated support layer and of composite membranes produced therefrom, for use in gas separation operations.
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Patent Agency Ranking
公开(公告)号：US4800019A
公开(公告)日：1989-01-24
申请号：US184799
申请日：1988-04-22
Applicant: Benjamin Bikson , Salvatore Giglia
Inventor： Benjamin Bikson , Salvatore Giglia
CPC classification number: B01D63/022 , B01D63/02
Abstract: A method for producing hollow fiber permeable devices having an essentially leak-free seal between the hollow fibers and the tubesheet that consists of heating the tubesheet containing the hollow fibers potted therein at a temperature essentially equal to or greater than the glass transition temperature of the thermoplastic material or the softening point of the thermoset material of the hollow fiber for a period of time sufficient to essentially densify the hollow fibers in the potted portion of the tubesheet and whereby a major portion of the interior diameter of the bores of the hollow fibers embedded in the tubesheet is enlarged; and the fiber permeable devices themselves.
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17.发明授权公开(公告)号：US09623369B2
公开(公告)日：2017-04-18
申请号：US13492757
申请日：2012-06-08
Applicant: Benjamin Bikson , Stephen Etter , Nathaniel Ching
Inventor： Benjamin Bikson , Stephen Etter , Nathaniel Ching
IPC: B01D53/22 , F28D15/00 , F28F1/00 , B01D1/22 , B64D37/32 , F28F21/06 , F28D7/16 , B01D63/02 , F28F9/02 , F28D7/02 , F28D21/00
CPC classification number: B01D53/228 , B01D1/22 , B01D63/02 , B01D2313/10 , B01D2313/12 , B64D37/32 , F28D7/024 , F28D7/1669 , F28D15/00 , F28D21/0015 , F28D2021/0021 , F28F1/00 , F28F9/026 , F28F21/062 , Y02T50/44 , Y10T428/139 , Y10T428/1393
Abstract: A hollow fiber fluid separation device includes a hollow fiber cartridge, comprising a plurality of hollow fiber membranes arranged around a central tubular core, a first tubesheet and a second tubesheet encapsulating respective distal ends of the hollow fiber bundle. The tubesheets have boreholes in fluid communication with bores of the hollow fiber membrane. In at least one of the tubesheets, the boreholes are formed radially and are in communication with the central tubular core. The hollow fiber fluid separation device can be utilized in liquid separation applications such as ultrafiltration and in gas separation processes such as air separation. The design disclosed herein is light weight and compact and is particularly advantageous at high operating temperatures when the pressure of the feed fluid introduced into the bores of hollow fibers is higher than the pressure on the shell side of the device.
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18.发明授权公开(公告)号：US06923846B2
公开(公告)日：2005-08-02
申请号：US10371934
申请日：2003-02-21
Applicant: Joyce Katz Nelson , Benjamin Bikson , James Timothy Macheras
Inventor： Joyce Katz Nelson , Benjamin Bikson , James Timothy Macheras
CPC classification number: B01D67/0095 , B01D53/228 , B01D69/08 , B01D69/12 , B01D71/44 , Y10S55/05
Abstract: A method for fabricating a composite membrane includes coating a substrate, such as, for example, an asymmetrical porous hollow fiber substrate, with a solution which includes a perfluorinated polymer and a perfluorinated solvent. Prior to coating, the substrate is impregnated with an impregnation fluid which is immiscible with the perfluorinated solvent. The method of the invention further includes removing the perfluorinated solvent and the impregnation fluid. A composite membrane includes a porous asymmetric hollow fiber substrate having an outer surface coated with a perfluoropolymer coating. Separation devices which include composite membranes and methods of separating a fluid mixture into a fraction enriched in a first component and a fraction depleted in that component also are described.
Abstract translation: 复合膜的制造方法包括用包含全氟化聚合物和全氟化溶剂的溶液涂布例如不对称多孔中空纤维基材的基材。 在涂覆之前，用与全氟化溶剂不混溶的浸渍流体浸渍基材。 本发明的方法还包括除去全氟化溶剂和浸渍液。 复合膜包括具有涂覆有全氟聚合物涂层的外表面的多孔不对称中空纤维基材。 还描述了包括复合膜的分离装置和将流体混合物分离成富含第一组分的馏分和在该组分中耗尽的部分的方法。
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公开(公告)号：US06776820B2
公开(公告)日：2004-08-17
申请号：US09900881
申请日：2001-07-10
Applicant: Benjamin Bikson , Scott Andrew Bartholomew , Salvatore Giglia , Bradley Quinn Johnson
Inventor： Benjamin Bikson , Scott Andrew Bartholomew , Salvatore Giglia , Bradley Quinn Johnson
IPC: B01D5322
CPC classification number: B01D46/003 , B01D46/2411 , B01D46/521 , B01D50/002 , B01D53/22 , B01D53/229 , B01D53/268 , B01D63/02 , B01D2313/44
Abstract: An integral hollow fiber membrane gas purification apparatus is disclosed. The apparatus comprises one or more filtration elements and a hollow fiber membrane cartridge placed coaxially in a common housing. In some embodiments, the filtration elements are omitted and the hollow fiber membrane cartridge is employed as a combined gas separation/filtration device. The apparatus of this invention is particularly useful for conditioning compressed air that includes the removal of both suspended matter and water vapor.
Abstract translation: 公开了一体的中空纤维膜气体净化装置。 该装置包括一个或多个过滤元件和同轴地放置在公共壳体中的中空纤维膜盒。 在一些实施例中，省略了过滤元件，并且使用中空纤维膜滤芯作为组合气体分离/过滤装置。 本发明的装置特别可用于调节压缩空气，包括除去悬浮物和水蒸气。
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公开(公告)号：US5897729A
公开(公告)日：1999-04-27
申请号：US928480
申请日：1997-09-12
Applicant: Benjamin Bikson , Salvatore Giglia , Patrick Samuel Nicolas, Jr. , Cheryl Ann Ford
Inventor： Benjamin Bikson , Salvatore Giglia , Patrick Samuel Nicolas, Jr. , Cheryl Ann Ford
CPC classification number: B01D63/025 , B01D63/021 , B01D63/024
Abstract: The invention involves annular hollow fiber membrane bundle comprising a plurality of helically wound layers of semi-permeable hollow fibers helically wound thereon and at least one reinforcement filament which has been helically wound concurrently with said hollow fibers into the hollow fiber membrane bundle. A preferred embodiment provides that the reinforcement filament is uniformly distributed throughout the diameter of the bundle and/or across the axial length of the bundle. Though, other embodiments provide a non-uniform distribution throughout the diameter of the bundle and/or across the axial length of the bundle.
Abstract translation: 本发明涉及环形中空纤维膜束，其包括螺旋缠绕在其上的多个螺旋缠绕的半透空心纤维层和至少一个已与所述中空纤维螺旋缠绕到中空纤维膜束中的加强丝。 一个优选实施例提供了加强细丝均匀分布在整个束的直径和/或横跨束的轴向长度。 尽管其它实施例提供了整个束的直径和/或横跨束的轴向长度的不均匀分布。
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