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141 条记录 (耗时 0.019 秒)

    Method and apparatus for producing high purity oxygen
    4.
    发明授权
    Method and apparatus for producing high purity oxygen 失效
    生产高纯氧的方法和设备

    公开(公告)号：US08479535B2

    公开(公告)日：2013-07-09

    申请号：US12235029

    申请日：2008-09-22

    申请人： David Ross Parsnick ,  Richard David Karp

    发明人： David Ross Parsnick ,  Richard David Karp

    IPC分类号： F25J3/00

    CPC分类号： F25J3/04969 ,  F25J3/0409 ,  F25J3/04254 ,  F25J3/04303 ,  F25J3/04454 ,  F25J3/04709 ,  F25J3/04963 ,  F25J2200/32 ,  F25J2200/34 ,  F25J2205/30 ,  F25J2210/42 ,  F25J2215/52 ,  F25J2215/54 ,  F25J2215/56 ,  F25J2235/50 ,  F25J2245/50

    摘要： A method and apparatus of producing high purity oxygen in connection with low purity liquid oxygen produced by a plurality of cryogenic air separation plants. The low purity liquid oxygen from the air separation plants is introduced into a distillation column of an auxiliary cryogenic rectification plant that is reboiled by nitrogen also produced by the air separation plants. Nitrogen is separated from the low purity liquid oxygen to produce high purity liquid oxygen from residual liquid located in a bottom region of the distillation column that can be taken as a product. Optionally, an argon column can be connected to the distillation column to produce a liquid argon product stream.

    摘要翻译： 与多个低温空气分离装置产生的低纯度液氧相关的生产高纯氧的方法和装置。 来自空气分离装置的低纯度液氧被引入辅助低温精馏装置的蒸馏塔中，该蒸馏塔也由空气分离装置产生的氮气再沸腾。 氮与低纯度液氧分离，从位于蒸馏塔底部区域的残留液体中产生高纯度的液氧，可以作为产品。 任选地，氩塔可以连接到蒸馏塔以产生液态氩产物流。

    Process for the recovery of krypton and/or xenon by low-temperature separation of air
    5.
    发明申请
    Process for the recovery of krypton and/or xenon by low-temperature separation of air 审中-公开
    通过低温分离空气来回收氪和/或氙的过程

    公开(公告)号：US20070044507A1

    公开(公告)日：2007-03-01

    申请号：US11509809

    申请日：2006-08-25

    申请人： Alfred Wanner

    发明人： Alfred Wanner

    IPC分类号： F25J3/00

    CPC分类号： F25J3/04745 ,  F25J3/0409 ,  F25J3/04351 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04878 ,  F25J2200/32 ,  F25J2200/34 ,  F25J2200/94 ,  F25J2245/50 ,  F25J2250/04 ,  F25J2250/20 ,  F25J2250/40 ,  F25J2250/50

    摘要： The process is used for the recovery of krypton and/or xenon by low-temperature separation of air. Compressed and purified feed air (1, 1A, 1B, 29) is introduced into a rectification system for nitrogen-oxygen separation, which has a high-pressure column (2) and a low-pressure column (3). An oxygen-rich liquid (42) is removed at a first point from the low-pressure column (3). At least a first portion (43) of the oxygen-rich liquid (42) is re-introduced in the low-pressure column at a second point, whereby a mass exchange section (44) is arranged between the first and second points on the low-pressure column. An additional liquid (35) is drawn off from a third point of the low-pressure column (3), which is arranged at the level of the second point or below it, said liquid introduced into the evaporation chamber of a first condenser-evaporator (4) and partially evaporated there. A krypton- and xenon-containing fraction (138) is drawn off from the evaporation chamber of a first condenser-evaporator and introduced into the evaporation chamber of a second condenser-evaporator (27). A krypton-xenon concentrate (125) is drawn off from the second condenser-evaporator (27).

    摘要翻译： 该方法用于通过空气的低温分离回收氪和/或氙。 将压缩和净化的进料空气（1,1A，1B，29）引入到具有高压塔（2）和低压塔（3）的氮 - 氧分离精馏系统中。 在低压塔（3）的第一点处除去富氧液体（42）。 富氧液体（42）的至少第一部分（43）在第二点被重新引入低压塔中，由此在第一点和第二点之间布置有质量交换部分 低压塔。 从低压塔（3）的第三点排出另外的液体（35），其被布置在第二点或其下方的水平面，所述液体被引入第一冷凝器 - 蒸发器的蒸发室 （4）并部分蒸发。 含有氪和氙的馏分（138）从第一冷凝器 - 蒸发器的蒸发室排出并被引入第二冷凝器 - 蒸发器（27）的蒸发室。 氪 - 氙浓缩物（125）从第二冷凝器 - 蒸发器（27）中排出。

    Process and apparatus for the cryogenic separation of air
    6.
    发明授权
    Process and apparatus for the cryogenic separation of air 失效
    空气低温分离的方法和装置

    公开(公告)号：US06651460B2

    公开(公告)日：2003-11-25

    申请号：US10282406

    申请日：2002-10-29

    申请人： Declan P. O'Connor

    发明人： Declan P. O'Connor

    IPC分类号： F25J302

    CPC分类号： F25J3/04412 ,  F25J3/04303 ,  F25J3/04448 ,  F25J3/04454 ,  F25J3/04872 ,  F25J3/04939 ,  F25J2200/32 ,  F25J2200/34 ,  F25J2200/96 ,  F25J2205/30 ,  F25J2245/40 ,  F25J2245/42 ,  F25J2290/10 ,  Y10S62/90

    摘要： Oxygen-containing gas comprising no more than about 50 mol % oxygen is fed (150) to an auxiliary separation column (40) in a multiple column cryogenic air distillation system comprising at least a higher pressure (“HP”) column (10) and a lower pressure (“LP”) column (30) for separation into nitrogen-rich overhead vapor and oxygen-rich liquid. Oxygen-rich liquid is fed (154) from the auxiliary column (40) to an intermediate location in the LP column (30). The auxiliary column (40) is refluxed with a liquid stream from or derived from the HP column (10). One advantage of the invention is that the diameter of the upper sections (II, III) of the LP column (30) need no longer be larger than the diameter of the rest of the column system thereby increasing the capacity of the column system (under the constraint of a defined maximum column section diameter).

    摘要翻译： 包含不超过约50mol％氧气的含氧气体在包括至少较高压力（“HP”）塔（10）的多塔低温空气蒸馏系统中被供给（150）到辅助分离塔（40）和 用于分离成富氮塔顶蒸气和富氧液体的较低压力（“LP”）塔（30）。 富氧液体（154）从辅助塔（40）进入LP塔（30）的中间位置。 辅助塔（40）与来自HP塔（10）的液流一起回流。 本发明的一个优点是，LP塔（30）的上部（II，III）的直径不需要大于塔系统的其余部分的直径，从而增加塔系统的容量（下 定义的最大柱截面直径的约束）。

    Process and apparatus for producing pressurized oxygen and krypton/xenon by low-temperature fractionation of air
    8.
    发明授权
    Process and apparatus for producing pressurized oxygen and krypton/xenon by low-temperature fractionation of air 失效
    通过空气的低温分馏产生加压氧和氪/氙的方法和装置

    公开(公告)号：US06301929B1

    公开(公告)日：2001-10-16

    申请号：US09452167

    申请日：1999-12-01

    申请人： Stefan Lochner

    发明人： Stefan Lochner

    IPC分类号： F25J304

    CPC分类号： F25J3/04412 ,  F25J3/04745 ,  F25J2200/34 ,  F25J2200/92 ,  F25J2200/94 ,  F25J2235/50

    摘要： The process and the apparatus serve for producing pressurized oxygen and krypton/xenon by low-temperature fractionation of air. The rectifying system has a low-pressure column (3) for the nitrogen-oxygen separation and a krypton-xenon enrichment column (15). Compressed and prepurified feed air (4) is introduced into the rectifying system. A first oxygen fraction (11) is taken off from the low-pressure column (3), brought (12) to an elevated pressure in the liquid state, vaporized and removed as gaseous pressurized oxygen product (24). In addition, a second oxygen fraction (16) is taken off from the low-pressure column (3) and passed (18) into the lower or central region of the krypton-xenon enrichment column (15). The first oxygen fraction (11) is taken off at least one actual or theoretical plate above the bottom of the low-pressure column (3) and, after the pressure elevation (12) is introduced (14) in the liquid state into the upper region of the krypton-xenon enrichment column (15). A krypton-enriched and/or xenon-enriched fraction (19) is taken off from the lower region of the krypton-xenon enrichment column (15). The pressurized oxygen product (24) is withdrawn in the gaseous state from the upper region of the krypton-xenon enrichment column (15).

    摘要翻译： 该方法和装置用于通过空气的低温分馏产生加压氧和氪/氙。 整流系统具有用于氮 - 氧分离的低压塔（3）和氪 - 氙浓缩塔（15）。 将压缩和预净化的进料空气（4）引入整流系统。 第一氧气馏分（11）从低压塔（3）中取出，使（12）处于液态的升高的压力下，作为气体加压氧产物（24）蒸发并除去。 此外，第二氧分数（16）从低压塔（3）中取出并通过（18）进入氪 - 氙浓缩塔（15）的下部或中心区域。 第一氧气馏分（11）从低压塔（3）底部的至少一个实际或理论塔板上取出，并且在压力升高（12）以液体状态引入（14）之后，上部 氪 - 氙浓缩柱（15）的区域。 从氪 - 氙浓缩塔（15）的下部区域取出富氪和/或氙浓缩馏分（19）。 加压氧产物（24）以气态从氪 - 氙浓缩塔（15）的上部区域排出。