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126 条记录 (耗时 0.034 秒)

    Method of separating oxygen with the use of composite ceramic membranes
    1.
    发明授权
    Method of separating oxygen with the use of composite ceramic membranes 有权
    使用复合陶瓷膜分离氧气的方法

    公开(公告)号：US06368383B1

    公开(公告)日：2002-04-09

    申请号：US09589425

    申请日：2000-06-07

    申请人： Anil V. Virkar ,  Christian Friedrich Gottzmann ,  Ravi Prasad ,  Bart Antonie Van Hassel

    发明人： Anil V. Virkar ,  Christian Friedrich Gottzmann ,  Ravi Prasad ,  Bart Antonie Van Hassel

    IPC分类号： B01D5322

    CPC分类号： B01D69/12 ,  B01D53/228 ,  B01D69/02 ,  B01D71/024 ,  B01D2257/104 ,  B01D2325/021 ,  B01D2325/26 ,  C01B13/0255 ,  C01B2210/0046 ,  C01B2210/0051

    摘要： A method of separating oxygen from an oxygen containing gas with a composite membrane capable of conducting oxygen ions and electrons. In accordance with the method, the composite membrane is subjected to an operational temperature and the oxygen containing gas at a cathode side thereof. The composite membrane has a dense layer, at least one active porous layer contiguous to the dense layer, and at least one porous support layer. The active porous layer has a thickness and a distribution of pore radii. The distribution of pore radii has a standard deviation from a theoretical radius that would produce a maximum operation flux through the thickness when the thickness is about equal to a product of a constant and the square root of the theoretical radius. The constant is a function of a material used to fabricate the active porous layer, the operational temperature and an oxygen partial pressure within the active porous layer, and a porosity and a tortuosity produced by the pore radii. The standard deviation of the log of the theoretical radius is equal to a product of 1.45 and a shape factor, the shape factor being greater than 0 and no greater than about 0.5.

    摘要翻译： 从含氧气体中分离出氧和能够导电氧离子和电子的复合膜的方法。 根据该方法，复合膜经受操作温度，阴极侧含有含氧气体。 复合膜具有致密层，与致密层邻接的至少一个活性多孔层和至少一个多孔载体层。 活性多孔层具有孔半径的厚度和分布。 孔半径的分布与理论半径的标准偏差，当理论半径的厚度约等于理论半径的常数和平方根的乘积时，将产生通过厚度的最大工作磁通。 常数是用于制造活性多孔层的材料的功能，活性多孔层内的操作温度和氧分压，以及由孔半径产生的孔隙率和曲折度。 理论半径的对数的标准偏差等于1.45的乘积和形状因子，形状因子大于0且不大于约0.5。

    Oxygen separation method utilizing an oxygen transport membrane reactor
    3.
    发明授权
    Oxygen separation method utilizing an oxygen transport membrane reactor 有权
    使用氧传输膜反应器的氧分离方法

    公开(公告)号：US07118612B2

    公开(公告)日：2006-10-10

    申请号：US10747169

    申请日：2003-12-30

    申请人： Eric Hunter Shreiber ,  Bart Antonie van Hassel ,  Ravi Prasad

    发明人： Eric Hunter Shreiber ,  Bart Antonie van Hassel ,  Ravi Prasad

    IPC分类号： B01D53/22

    CPC分类号： B01D53/22

    摘要： A method of separating oxygen from an oxygen containing stream in which compressed and heated oxygen is introduced into cathode side of an oxygen transport membrane reactor. Oxygen is permeated from the cathode side to the anode side. Motive fluid that is introduced into an ejector draws an oxygen permeate containing stream from the anode side at a subatmospheric pressure to form an oxygen containing product stream. The motive fluid, which can be steam raised by combustion used in heating the reactor, can be separated from the oxygen containing product stream to form an oxygen product stream. The use of an ejector lowers the partial pressure of the oxygen at the anode side of the membrane reactor and therefore the degree to which the oxygen containing stream need be compressed.

    摘要翻译： 从含氧气流中分离氧气的方法，其中将压缩和加热的氧气引入到氧传输膜反应器的阴极侧。 氧从阴极侧渗透到阳极侧。 引入喷射器的运动流体在低于大气压的压力下从阳极侧吸收含氧气渗透物流以形成含氧产物流。 可以通过用于加热反应器的燃烧引起的蒸汽升高的运动流体与含氧产物流分离以形成氧产物流。 喷射器的使用降低了膜反应器阳极侧氧气的分压，因此降低了含氧气流的压缩程度。

    Ion-transport membrane assembly incorporating internal support
    4.
    发明授权
    Ion-transport membrane assembly incorporating internal support 失效
    内置支架的离子传输膜组件

    公开(公告)号：US06565632B1

    公开(公告)日：2003-05-20

    申请号：US10015622

    申请日：2001-12-17

    申请人： Bart Antonie van Hassel ,  Ravi Prasad ,  Jack Chen ,  Jonathan Lane

    发明人： Bart Antonie van Hassel ,  Ravi Prasad ,  Jack Chen ,  Jonathan Lane

    IPC分类号： B01D5322

    CPC分类号： B01D53/22 ,  B01D63/065 ,  B01D71/024 ,  B01D2325/26 ,  C01B3/503 ,  C01B13/0255 ,  C01B2210/0046

    摘要： An ion-transport membrane assembly including a tubular, ion-transport membrane that is fabricated from one or more ion-transport, ceramic materials capable of ionic transport at an operational temperature of greater than 400° C. The membrane may be an oxygen transport membrane or a hydrogen transport membrane. A plurality of structural supporting members, fabricated from an open porous material and having an outer cylindrical surface, are inserted within the membrane, without being bonded to the membrane, to inhibit inward collapse of the membrane under application of a pressure applied to an exterior surface of the membrane. The structural supporting members are configured to permit relative movement between the outer surface of the structural supporting member and the interior surface of the tubular membrane during heating to or cooling from the operational temperature thereof.

    摘要翻译： 一种离子传输膜组件，其包括管状离子迁移膜，其由一种或多种能在大于400℃的操作温度下离子迁移的离子传输陶瓷材料制成。所述膜可以是氧传输膜 或氢输送膜。 由打开的多孔材料制成并且具有外圆柱形表面的多个结构支撑构件被插入到膜内，而不被粘合到膜上，以在施加到外表面上的压力下抑制膜的向内塌陷 的膜。 结构支撑构件构造成允许在从其工作温度加热到或冷却之前，结构支撑构件的外表面和管状膜的内表面之间的相对移动。

    Reactive purge for solid electrolyte membrane gas separation
    6.
    发明授权
    Reactive purge for solid electrolyte membrane gas separation 失效
    固体电解质膜气体分离的反应性吹扫

    公开(公告)号：US5837125A

    公开(公告)日：1998-11-17

    申请号：US567699

    申请日：1995-12-05

    申请人： Ravi Prasad ,  Christian Friedrich Gottzmann ,  Nitin Ramesh Keskar

    发明人： Ravi Prasad ,  Christian Friedrich Gottzmann ,  Nitin Ramesh Keskar

    IPC分类号： B01D53/22 ,  B01D53/32 ,  B01D71/02 ,  C01B13/02 ,  C01B21/04 ,  C01B23/00

    CPC分类号： B01D53/226 ,  B01D53/326

    摘要： A system and process for producing a high-purity product from a feed stream containing elemental oxygen by applying the feed stream to at least one separator including a feed zone and a permeate zone separated by a solid electrolyte membrane, and driving a portion of oxygen contained in the feed stream from the feed zone to the permeate zone via the membrane by applying to the permeate zone a reactive purge stream containing a reactive gas which combines with oxygen to establish a lower partial pressure of oxygen in that zone. Oxygen-depleted retentate is withdrawn as a high-purity product stream.

    摘要翻译： 通过将进料流施加到至少一个分离器的系统和方法，所述系统和方法由含有元素氧的进料流生产高纯度产物，所述至少一个分离器包括由固体电解质膜分离的进料区和渗透区，并驱动所含的一部分氧 在通过向渗透物区域施加包含与氧结合的反应性气体的反应性气流以在该区域中建立较低的氧分压的通过膜从进料区到渗透区的进料流中。 作为高纯度产物流取出缺氧的渗余物。

    Method and apparatus for producing carbon dioxide
    8.
    发明授权
    Method and apparatus for producing carbon dioxide 失效
    生产二氧化碳的方法和装置

    公开(公告)号：US06537514B1

    公开(公告)日：2003-03-25

    申请号：US09427066

    申请日：1999-10-26

    申请人： Ravi Prasad ,  Christian Friedrich Gottzmann ,  Nitin Ramesh Keskar ,  Joseph Michael Schwartz

    发明人： Ravi Prasad ,  Christian Friedrich Gottzmann ,  Nitin Ramesh Keskar ,  Joseph Michael Schwartz

    IPC分类号： C01B3120

    CPC分类号： B01D53/32 ,  B01D53/22 ,  Y02C10/10 ,  Y02E20/14

    摘要： In a method for the production of carbon dioxide, an oxygen-containing first process gas is flowed along a cathode side of a first oxygen selective ion transport membrane. The membrane is at operating conditions effective to transport a first permeate oxygen portion from the cathode side to an opposite anode side. A carbon-containing second process gas is flowed along the anode side at a flow rate effective to provide a stoichiometric surplus of oxygen on combination with the first permeate oxygen portion. A first mixture of a second process gas and the first permeate oxygen portion is combusted such that substantially all of the second process gas is converted into a second mixture of water and carbon dioxide. The carbon dioxide is separated from such second mixture.

    摘要翻译： 在制造二氧化碳的方法中，含氧的第一工艺气体沿着第一氧选择性离子迁移膜的阴极侧流动。 膜处于有效地将第一渗透氧部分从阴极侧输送到相对的阳极侧的操作条件。 含碳的第二工艺气体沿着阳极侧以与第一渗透氧部分组合以提供化学计量的剩余氧气的流量流动。 将第二工艺气体和第一渗透氧部分的第一混合物燃烧，使得基本上所有的第二工艺气体转化为水和二氧化碳的第二混合物。 二氧化碳与第二混合物分离。