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    Semi-permeable membrane separation process for the production of very high purity nitrogen
    6.
    发明授权
    Semi-permeable membrane separation process for the production of very high purity nitrogen 失效
    半透膜分离工艺，用于生产非常高纯度的氮气

    公开(公告)号：US5693121A

    公开(公告)日：1997-12-02

    申请号：US552466

    申请日：1995-11-09

    申请人： Richard A. Callahan ,  Kishore V. Khandavalli

    发明人： Richard A. Callahan ,  Kishore V. Khandavalli

    IPC分类号： B01D53/22 ,  C01B21/04 ,  B01D53/26

    CPC分类号： B01D53/226 ,  B01D53/22 ,  C01B21/0438 ,  C01B2210/0051

    摘要： A semi-permeable gas membrane process is described for the separation of very high purity nitrogen from a process feed gas mixture that is predominantly nitrogen, and one or more other permeable gases, which process comprises providing a feed gas mixture under pressure to a membrane separator unit comprising a semi-permeable separation membrane with respect to which the largest fraction of the other permeable gases is at least 20 times more permeable than nitrogen, to provide a very high purity raffinate nitrogen gas product.

    摘要翻译： 描述了一种半渗透气体膜工艺，用于从主要为氮的工艺原料气体混合物和一种或多种其它可渗透气体分离非常高纯度的氮气，该方法包括在压力下将进料气体混合物提供给膜分离器 单元包括半渗透分离膜，其中最大部分的其它可渗透气体的渗透性比氮的渗透性高至少20倍，以提供非常高纯度的残液氮气产物。

    Process for supplying nitrogen by means of semi-permeable membranes or of separators of gases by adsorption
    7.
    发明授权
    Process for supplying nitrogen by means of semi-permeable membranes or of separators of gases by adsorption 失效
    通过半透膜或气体分离器通过吸附提供氮气的方法

    公开(公告)号：US5472480A

    公开(公告)日：1995-12-05

    申请号：US275404

    申请日：1994-07-15

    申请人： Christian Barbe

    发明人： Christian Barbe

    IPC分类号： B01D53/02 ,  B01D53/22 ,  C01B21/04 ,  B01D53/04

    CPC分类号： C01B21/045 ,  B01D53/226 ,  B01D53/229 ,  C01B21/0438

    摘要： A process for supplying nitrogen to at least two user stations, whose requirements as to nitrogen purity are different. Compressed air is passed from an air compressor (12) to at least one air treatment station (13) permitting effecting at least one of the following treatments of oil removal, filtering out a major portion of the particles, drying, and bringing the air to the desired temperature. The compressed air is then sent to a centralized gas separation unit (14), so as to produce at the outlet of the unit impure nitrogen of intermediate purity. The gas from the centralized separation unit (14) is directed to at least two utilization lines (3-5), each comprising a local gas separation unit (6-8), in which the gas is again treated, so as to obtain at the outlet of each local separation unit nitrogen of a purity suitable for the uses of each of the user stations (9, 10) at the end of the line.

    摘要翻译： 向至少两个用户站供应氮气的方法，其对氮气纯度的要求不同。 压缩空气从空气压缩机（12）通到至少一个空气处理站（13），允许至少一个以下的除油处理，过滤大部分颗粒，干燥和使空气进入 所需温度。 然后将压缩空气送至集中式气体分离单元（14），以便在单元的出口处产生中等纯度的不纯氮。 来自集中分离单元（14）的气体被引导至至少两个利用管线（3-5），每个利用管线（3-5）包括局部气体分离单元（6-8），其中再次处理气体，以便获得 每个局部分离单元氮气的出口具有适于在线路末端处的每个用户站（9,10）的使用的纯度。

    PROCESS AND APPARATUS FOR PRODUCING OXYGEN AND NITROGEN USING ION TRANSPORT MEMBRANES
    9.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING OXYGEN AND NITROGEN USING ION TRANSPORT MEMBRANES 审中-公开
    使用离子交换膜生产氧和氮的工艺和装置

    公开(公告)号：US20150336054A1

    公开(公告)日：2015-11-26

    申请号：US14358452

    申请日：2014-02-27

    申请人： Air Products and Chemicals, Inc.

    发明人： William S. Rollins ,  VanEric Edward Stein

    IPC分类号： B01D63/00 ,  C01B21/04 ,  C01B13/02 ,  B01D53/22

    CPC分类号： B01D63/00 ,  B01D53/225 ,  B01D2053/221 ,  B01D2311/10 ,  C01B13/0251 ,  C01B21/0438

    摘要： Process and apparatus for producing an oxygen product gas and a nitrogen product gas using ion transport membrane assemblies. The apparatus comprises at least two ion transport membrane assemblies and a turboexpander downstream of one of the ion transport membrane assemblies. In the process, an oxygen- and nitrogen-containing gas is introduced into a first of the ion transport membrane assemblies to produce oxygen-depleted gas and oxygen product gas. The oxygen-depleted gas is divided, with a first portion being expanded in the turboexpander and a second portion introduced into a second of the ion transport membrane assemblies. A nitrogen-rich product gas and additional oxygen product gas are withdrawn from the second ion transport membrane assembly.

    摘要翻译： 使用离子迁移膜组件生产氧产品气体和氮气产物气体的方法和设备。 该装置包括至少两个离子迁移膜组件和离子迁移膜组件之一的下游的涡轮膨胀机。 在此过程中，将含氧和含氮气体引入第一离子迁移膜组件以产生贫氧气体和氧产物气体。 氧耗尽的气体被分开，第一部分在涡轮膨胀机中膨胀，第二部分被引入第二离子传递膜组件。 从第二离子迁移膜组件中抽出富氮产物气体和附加的氧产物气体。

    Device and Method for Separating Gases
    10.
    发明申请
    Device and Method for Separating Gases 有权
    分离气体的装置和方法

    公开(公告)号：US20150047502A1

    公开(公告)日：2015-02-19

    申请号：US14386414

    申请日：2013-03-05

    申请人： ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP

    发明人： Peter Jozef Heirman

    IPC分类号： B01D53/22 ,  B01D63/00

    CPC分类号： B01D53/22 ,  B01D63/00 ,  B01D2053/221 ,  B01D2311/14 ,  B01D2313/24 ,  C01B21/0438

    摘要： A device for separating gases comprises the following components: a source for the gases and flow adjustment means; a membrane unit for the production of a permeate gas and a retentate gas, one of which is the product gas; purity determining means for the product gas; a first control unit for the device; a retentate control system and a product gas pressure measurement, whereby the source has a second control unit for the flow adjustment means as a function of a target value of the gases and the first control unit is connected to the second control unit and to the retentate control system, whereby the first control unit can determine the target value and can control the retentate control system.

    摘要翻译： 用于分离气体的装置包括以下部件：气体源和流量调节装置; 用于生产渗透气体和滞留气体的膜单元，其中一个是产物气体; 用于产品气体的纯度测定装置; 用于所述装置的第一控制单元; 滞留控制系统和产品气体压力测量，其中源具有作为气体的目标值的函数的用于流量调节装置的第二控制单元，并且第一控制单元连接到第二控制单元和保留物 控制系统，由此第一控制单元可以确定目标值并且可以控制滞留控制系统。