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    Recovery of krypton and xenon
    1.
    发明申请
    Recovery of krypton and xenon 失效
    恢复氪和氙气

    公开(公告)号：US20030129127A1

    公开(公告)日：2003-07-10

    申请号：US10039866

    申请日：2002-01-04

    发明人： Stephen John Cook ,  John Louis Griffiths

    IPC分类号： C01B003/24

    CPC分类号： C01B13/0248 ,  C01B3/36 ,  C01B23/001 ,  C01B2203/025 ,  C01B2210/0035 ,  C01B2210/0037 ,  C01B2210/0046 ,  C07C29/1518 ,  F25J3/028 ,  F25J3/04539 ,  F25J2200/04 ,  F25J2205/02 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2205/82 ,  F25J2210/04 ,  F25J2210/18 ,  F25J2210/40 ,  F25J2215/34 ,  F25J2215/36 ,  F25J2230/60 ,  F25J2240/40 ,  F25J2245/02 ,  F25J2260/60 ,  Y10S62/925 ,  C07C31/04

    摘要： A method for recovering krypton and xenon from air comprises (a) separating an air feed stream into oxygen-enriched and nitrogen-enriched product streams; (b) reacting the oxygen-rich product stream with a hydrocarbon feed in a synthesis gas generation process to yield a synthesis gas stream comprising hydrogen, carbon oxides, krypton, and xenon, which synthesis gas stream contains essentially no oxygen; (c) introducing the synthesis gas stream into a synthesis gas conversion process and converting the synthesis gas stream into a liquid synthesis product stream and an unreacted synthesis gas stream; (d) recycling at least a portion of the unreacted synthesis gas stream to the synthesis gas generation process; (e) reducing the pressure of the liquid synthesis product stream to yield a two-phase reduced-pressure product stream, and separating the two-phase reduced-pressure product stream into a final liquid synthesis product stream and a gas stream enriched in krypton and xenon; and (f) separating the gas stream enriched in krypton and xenon into a purge gas stream and a gas product stream further enriched in krypton and xenon.

    摘要翻译： 从空气中回收氪和氙的方法包括（a）将空气进料流分离成富氧和富氮产物流; （b）在合成气生成过程中使富氧产物流与烃进料反应，以产生包含氢，碳氧化物，氪和氙的合成气流，该合成气流基本上不含氧; （c）将合成气流引入合成气转化过程中，并将合成气流转化成液体合成产物流和未反应的合成气流; （d）将至少一部分未反应的合成气流再循环到合成气产生过程中; （e）降低液体合成产物流的压力以产生两相减压产物流，并将两相减压产物流分离成最终的液体合成产物流和富含氪的气流和 氙; 和（f）将富含氪和氙的气流分离成吹扫气流和进一步富含氪和氙的气体产物流。

    Method for extracting xenon
    2.
    发明授权
    Method for extracting xenon 失效
    氙气提取方法

    公开(公告)号：US06351970B1

    公开(公告)日：2002-03-05

    申请号：US09701240

    申请日：2001-02-22

    申请人： Erich Hahn ,  Wilhelm Rohde ,  Jürgen Voit

    发明人： Erich Hahn ,  Wilhelm Rohde ,  Jürgen Voit

    IPC分类号： F25J100

    CPC分类号： F25J3/04751 ,  F25J3/028 ,  F25J3/04745 ,  F25J2200/32 ,  F25J2200/34 ,  F25J2205/30 ,  F25J2210/42 ,  F25J2210/50 ,  F25J2215/34 ,  F25J2215/36 ,  Y10S62/925

    摘要： The invention relates to a method for extracting xenon and eventually also krypton from a liquid oxygen (LOX) charge, as it accrues in a cryogenic air separation system (LZA) during a rectification of the air, mostly as a bottom product of a low-pressure, column, namely with xenon (Xe), krypton (Kr) and hydrocarbons (CxHy) in a small concentration and approximately 99 mol % oxygen (O2). According to the inventive method, the LOX charge is fed to a first column, the oxygen of the LOX charge is extensively removed by stripping with an inert gas, and is extracted in the top gas, whereas the inert gas is withdrawn in the form of a liquid from the bottom of the first column with little O2 and nearly the total mass of CxHy, Kr, Xe. According to the invention, the liquid discharge is fed to a second column without prior catalytic and/or adsorptive removal of CxHy. A Kr fraction is extracted as top gas of the second column, and an Xe fraction is withdrawn from the bottom of the second column. The method can be used in a device for extracting Xe and/or Kr in an air separation system (LZA). The device can be arranged in a transportable container.

    摘要翻译： 本发明涉及一种用于在空气整流期间在低温空气分离系统（LZA）中产生的从液氧（LOX）装料中提取氙并最终还氪的方法，主要作为低温空气分离系统的底部产物， 压力，柱，即氙（Xe），氪（Kr）和碳氢化合物（CxHy）在小浓度和约99mol％的氧气（O2）。 根据本发明的方法，将LOX装料进料到第一塔中，通过用惰性气体汽提来广泛地除去LOX装料的氧气，并在顶部气体中提取，而惰性气体以 来自第一列底部的液体几乎没有O2，几乎总C 6 H y，Kr，Xe的质量。 根据本发明，将液体排放物进料至第二塔，无需事先催化和/或吸附除去CxHy。 提取Kr馏分作为第二塔的顶部气体，并且从第二塔的底部排出Xe馏分。 该方法可用于在空气分离系统（LZA）中提取Xe和/或Kr的装置。 该装置可以布置在可运输的容器中。

    Gas separation process
    3.
    发明授权
    Gas separation process 失效
    气体分离过程

    公开(公告)号：US4417909A

    公开(公告)日：1983-11-29

    申请号：US966446

    申请日：1978-12-04

    申请人： William R. Weltmer, Jr.

    发明人： William R. Weltmer, Jr.

    IPC分类号： B01D53/04 ,  B01D7/02 ,  C01B23/00 ,  F25J3/00 ,  F25J3/02 ,  G21F9/00 ,  G21F9/02 ,  F25J3/06

    CPC分类号： G21F9/02 ,  B01D7/02 ,  F25J3/028 ,  F25J2205/20 ,  F25J2210/40 ,  F25J2215/34 ,  F25J2215/36 ,  F25J2215/42 ,  Y10S62/925

    摘要： Method and apparatus for separating gases having different partial pressures at a given temperature includes introducing a multi-component gas mixture into a chamber, reducing the temperature therein to solidify and liquefy all components. At least one component remains liquid which is evaporated, thereby separating such component from the solidified components which may then be liquefied and recovered. The process is especially useful in recovering radioactive krypton and xenon from the off gas streams of nuclear processes such as nuclear fuel reprocessing.

    摘要翻译： 用于在给定温度下分离具有不同分压的气体的方法和装置包括将多组分气体混合物引入室中，降低其中的温度以固化和液化所有组分。 至少一种组分保持液体，其被蒸发，从而将这些组分与固化的组分分离，然后可以将其液化并回收。 该过程在从诸如核燃料再加工的核工艺的废气流中回收放射性氪和氙气中特别有用。

    Removing radioactive noble gases from nuclear process off-gases
    4.
    发明授权
    Removing radioactive noble gases from nuclear process off-gases 失效
    从核工艺废气中去除放射性惰性气体

    公开(公告)号：US4012490A

    公开(公告)日：1977-03-15

    申请号：US512657

    申请日：1974-10-07

    申请人： Antony Lofredo

    发明人： Antony Lofredo

    IPC分类号： C01B23/00 ,  F25J3/02 ,  G21F9/02 ,  F25J3/00

    CPC分类号： F25J3/028 ,  C01B23/00 ,  G21F9/02 ,  F25J2205/82 ,  F25J2215/34 ,  F25J2215/36 ,  Y10S62/925

    摘要： A system for separating, concentrating and storing radioactive krypton and xenon in the off-gases from a boiling water reactor, wherein adsorption and cryogenic distillation are both efficiently used for rapid and positive separation and removal of the radioactive noble gases, and for limiting such gases in circulation in the system to low inventory at all times, and wherein the system is self-regulating to eliminate operator options or attention.

    摘要翻译： 用于从沸水反应器中分离，浓缩和储存放射性氪和氙的废气的系统，其中吸附和低温蒸馏都有效地用于快速和积极地分离和去除放射性惰性气体，并限制这些气体 在系统中流通到低库存，并且其中系统是自我调节的，以消除操作者的选择或注意。

    XENON RETRIEVAL SYSTEM AND RETRIEVAL DEVICE
    7.
    发明申请
    XENON RETRIEVAL SYSTEM AND RETRIEVAL DEVICE 有权
    XENON检索系统和检索设备

    公开(公告)号：US20100074820A1

    公开(公告)日：2010-03-25

    申请号：US12516723

    申请日：2007-11-30

    申请人： Masahiro Kimoto ,  Terumasa Koura ,  Yukio Fukuda ,  Masaki Narazaki ,  Taiji Hashimoto ,  Toru Sakai ,  Kazuo Yokogi

    发明人： Masahiro Kimoto ,  Terumasa Koura ,  Yukio Fukuda ,  Masaki Narazaki ,  Taiji Hashimoto ,  Toru Sakai ,  Kazuo Yokogi

    IPC分类号： C01B23/00 ,  B01D53/02

    CPC分类号： B01D53/02 ,  B01D2253/108 ,  B01D2256/18 ,  B01D2257/11 ,  C01B23/0042 ,  C01B23/0052 ,  C01B23/0084 ,  C01B2210/0037 ,  C01B2210/0068 ,  F25J3/028 ,  F25J2205/20 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2215/36

    摘要： To provide a simple highly-pure Xe retrieval method and device with high retrieval efficiency by functionally removing such elements as water, CO2 and FCs from waste gases from semiconductor production processes, such as the plasma etching, that contain low-concentration Xe. For samples containing xenon and fluorocarbon, this invention is characterized by having at least first adsorption means (A1) filled with synthetic zeolite with pore size of 4A or smaller and aluminum oxide, arranged serially, gas separation means (A2) composed of silicone or polyethylene hollow fiber gas separation membrane modules 4, second adsorption means (A3) filled with either activated carbon, synthetic zeolite with pore size of 5A or larger, molecular sieving carbon with pore size of 5A or larger, or a combination of these, and reaction means (A4) filled with calcium compounds as reactant.

    摘要翻译： 通过从包含低浓度Xe的半导体生产工艺（例如等离子体蚀刻）的废气中功能去除水，CO2和FC等元素，提供具有高回收效率的简单的高纯度Xe回收方法和装置。 对于含有氙气和碳氟化合物的样品，本发明的特征在于至少具有填充有4A或更小孔径的合成沸石的第一吸附装置（A1）和串联排列的氧化铝，由硅氧烷或聚乙烯组成的气体分离装置（A2） 中空纤维气体分离膜组件4，填充有活性碳的第二吸附装置（A3），孔径为5A以上的合成沸石，孔径为5A以上的分子筛碳，或它们的组合，以及反应装置 （A4）填充有钙化合物作为反应物。

    Separation and purification of xenon
    9.
    发明授权
    Separation and purification of xenon 失效
    氙气的分离纯化

    公开(公告)号：US4078907A

    公开(公告)日：1978-03-14

    申请号：US9256

    申请日：1970-02-18

    申请人： Carl Solomon Schlea, deceased

    发明人： Carl Solomon Schlea, deceased

    IPC分类号： B01D3/40 ,  C01B23/00 ,  F25J3/02 ,  B01D19/00

    CPC分类号： C01B23/00 ,  B01D3/40 ,  F25J3/028 ,  F25J2210/50 ,  F25J2215/36 ,  F25J2270/904

    摘要： Xenon is separated from a mixture of xenon and krypton by extractive distillation using carbon tetrafluoride as the partitioning agent. Krypton is flushed out of the distillation column with CF.sub.4 in the gaseous overhead stream while purified xenon is recovered from the liquid bottoms. The distillation is conducted at about atmospheric pressure or at subatmospheric pressure.

    摘要翻译： 通过采用四氟化碳作为分配剂，通过萃取蒸馏将氙与氙和氪的混合物分离。 氪气在气态塔顶流中用CF4从蒸馏塔中冲出，同时从液体底部回收纯化的氙气。 蒸馏在大气压或低于大气压下进行。