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33 条记录 (耗时 0.032 秒)

    Process for the production of methanol including one or more membrane separation steps
    3.
    发明授权
    Process for the production of methanol including one or more membrane separation steps 有权
    包括一个或多个膜分离步骤的甲醇生产方法

    公开(公告)号：US08168685B2

    公开(公告)日：2012-05-01

    申请号：US13175399

    申请日：2011-07-01

    申请人： Nicholas P. Wynn ,  Douglas Gottschlich

    发明人： Nicholas P. Wynn ,  Douglas Gottschlich

    IPC分类号： C07C27/00

    CPC分类号： C01B3/501 ,  B01D53/22 ,  B01J19/2475 ,  B01J2219/00006 ,  C01B2203/0233 ,  C01B2203/0405 ,  C01B2203/047 ,  C01B2203/0475 ,  C01B2203/061 ,  C01B2203/1241 ,  C07C29/1518 ,  Y02P30/30 ,  C07C31/04

    摘要： Disclosed herein is a methanol production process that includes a membrane separation step or steps. Using the process of the invention, the efficiency of methanol production from syngas is increased by reducing the compression requirements of the process and/or improving the methanol product yield. As an additional advantage, the membrane separation step generates a hydrogen-rich stream which can be sent for other uses. An additional benefit is that the process of the invention may debottleneck existing methanol plants if more syngas or carbon dioxide is available, allowing for feed of imported carbon dioxide into the synthesis loop. This is a way of sequestering carbon dioxide.

    摘要翻译： 本文公开了包括膜分离步骤或步骤的甲醇生产方法。 使用本发明的方法，通过降低该方法的压缩要求和/或提高甲醇产物产率来提高合成气生产甲醇的效率。 作为另外的优点，膜分离步骤产生可以发送用于其它用途的富氢流。 另外的好处是，如果更多的合成气或二氧化碳可用，本发明的方法可以对现有甲醇装置进行脱瓶，从而允许将进口的二氧化碳进料到合成循环中。 这是一种隔离二氧化碳的方式。

    Gas separation membrane module assembly with residue manifold
    4.
    发明授权
    Gas separation membrane module assembly with residue manifold 有权
    气体分离膜组件与残留歧管

    公开(公告)号：US07918921B2

    公开(公告)日：2011-04-05

    申请号：US12220973

    申请日：2008-07-29

    申请人： Nicholas P Wynn

    发明人： Nicholas P Wynn

    IPC分类号： B01D53/22

    CPC分类号： B01D53/22 ,  B01D63/046 ,  B01D63/12 ,  B01D2258/06 ,  B01D2313/06 ,  B01D2313/125 ,  B01D2319/022 ,  B01D2319/04

    摘要： A gas-separation membrane module assembly and a gas-separation process using the assembly. The assembly includes a set of tubes, each containing gas-separation membrane elements, arranged within a housing. The housing contains tube sheets that divide the space within the housing into three separate, gas-tight spaces, with the tubes mounted in the central space. Feed gas enters the tubes through apertures positioned to feed multiple membrane elements within a tube in parallel, and one or more manifolds are used to collect residue gas from the membrane elements and direct the gas to the residue port or to a second group of membrane elements within the tube. The assembly can be used in various ways to carry out gas separation processes.

    摘要翻译： 气体分离膜组件和使用组件的气体分离方法。 该组件包括一组管，每个管均包含气体分离膜元件，其布置在壳体内。 壳体包含管板，其将壳体内的空间分成三个分离的气密空间，管安装在中心空间中。 进料气体通过定位成在管内平行供给多个膜元件的孔进入管，并且使用一个或多个歧管从膜元件收集残余气体并将气体引导至残留口或第二组膜元件 在管内。 该组件可以以各种方式用于进行气体分离过程。

    Method and apparatus for selective absorption of hydrogen sulphide from gas streams containing hydrogen sulphide and carbon dioxide
    7.
    发明授权
    Method and apparatus for selective absorption of hydrogen sulphide from gas streams containing hydrogen sulphide and carbon dioxide 失效
    从含有硫化氢和二氧化碳的气流中选择性吸收硫化氢的方法和装置

    公开(公告)号：US4678648A

    公开(公告)日：1987-07-07

    申请号：US828064

    申请日：1986-02-10

    申请人： Nicholas P. Wynn

    发明人： Nicholas P. Wynn

    IPC分类号： B01D53/14 ,  B01D53/18 ,  B01D53/52 ,  B01D53/77 ,  B01J19/32 ,  C10K1/14 ,  C01B17/16 ,  B01D47/00 ,  B01F3/04 ,  C01B31/20

    CPC分类号： B01J19/32 ,  B01D53/1462 ,  B01D53/18 ,  C10K1/143 ,  Y02C10/06 ,  Y02P20/152

    摘要： The process selectively absorbs hydrogen sulphide from gases containing hydrogen sulphide and carbon dioxide by contacting the gas with an aqueous solution of alkanolamine in an absorber column containing a structured packing consisting of a number of corrugated plates arranged parallel to the column axis. The corrugations are angled to the column axis at an angle between 20.degree. and 70.degree. and run in opposite directions on adjacent plates. The structured packing effects a lower absorption of the carbon dioxide in the solvent than Pall rings or sieve trays so that only a small amount of carbon dioxide is co-absorbed with the hydrogen sulphide.

    摘要翻译： 该方法通过使气体与链烷醇胺水溶液在吸收塔中接触，从含有硫化氢和二氧化碳的气体中选择性地吸收硫化氢，该吸收塔包含由平行于柱轴线布置的多个波纹板组成的规整填料。 波纹与柱轴成角度为20°和70°之间的角度，并在相邻板上沿相反方向运行。 结构化填料对溶剂中二氧化碳的吸收比Pall环或筛板更低，因此只有少量的二氧化碳与硫化氢共同吸收。

    Process for recovering olefins in polyolefin plants
    9.
    发明授权
    Process for recovering olefins in polyolefin plants 有权
    在聚烯烃工厂中回收烯烃的方法

    公开(公告)号：US09073808B1

    公开(公告)日：2015-07-07

    申请号：US14486382

    申请日：2014-09-15

    申请人： Paul Su ,  Nicholas P Wynn ,  Marc Jacobs ,  Xiaotong Wei ,  Sylvie Thomas-Droz ,  Xuezhen Wang

    发明人： Paul Su ,  Nicholas P Wynn ,  Marc Jacobs ,  Xiaotong Wei ,  Sylvie Thomas-Droz ,  Xuezhen Wang

    IPC分类号： C07C7/144 ,  C07C7/09 ,  C07C7/00

    CPC分类号： C07C7/144 ,  C07C7/005 ,  C07C7/09 ,  C07C11/02 ,  C07C11/04 ,  C07C11/06

    摘要： A process for recovering unreacted olefin in a polyolefin manufacturing process comprising the treatment of a purge bin vent gas. The process involves cooling and condensing the vent gas (purge stream), which contains at least an olefin, a paraffin, and nitrogen, to produce a liquid condensate and an uncondensed (residual) gas stream. Both streams are then passed through membrane separation steps. The membrane separation of the uncondensed gas stream results in a residue stream containing mostly nitrogen and/or paraffin and a permeate stream enriched in either C2+ hydrocarbons or olefin, depending on the type of separation. The permeate from this step is recirculated within the process prior to the condensation step. The membrane separation of the condensate results in a residue stream containing paraffin and a permeate stream enriched in olefin, which may be recycled to the polymerization reactor.

    摘要翻译： 一种在聚烯烃制造方法中回收未反应烯烃的方法，包括处理净化箱排气。 该方法包括冷却和冷凝含有至少一种烯烃，石蜡和氮气的排出气体（吹扫流），以产生液体冷凝物和未冷凝（残余）气流。 然后将两个流通过膜分离步骤。 未冷凝的气流的膜分离导致根据分离类型，主要含有氮和/或石蜡的残留物流和富含C 2 +烃或烯烃的渗透物流。 来自该步骤的渗透物在冷凝步骤之前在该过程中再循环。 冷凝物的膜分离产生含有石蜡和富含烯烃的渗透物流的残余物流，其可循环至聚合反应器。