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    NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT
    3.
    发明申请
    NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT 审中-公开
    用于空气分离设备的氮气液化器改造

    公开(公告)号：WO2010002500A2

    公开(公告)日：2010-01-07

    申请号：PCT/US2009/043558

    申请日：2009-05-12

    申请人： PRAXAIR TECHNOLOGY, INC. ,  PARSNICK, David, Ross ,  SKARE, Todd, Alan

    发明人： PARSNICK, David, Ross ,  SKARE, Todd, Alan

    IPC分类号： F25J3/04

    CPC分类号： F25J3/0489 ,  F25J3/04224 ,  F25J3/04345 ,  F25J3/04351 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04703 ,  F25J3/04715 ,  F25J3/04969 ,  F25J2200/34 ,  F25J2215/56 ,  F25J2290/10

    摘要： A method is disclosed for increasing liquid production involving retrofitting an existing air separation plant with a nitrogen liquefier. The nitrogen liquefier liquefies a nitrogen-rich vapor stream withdrawn from the higher pressure column to return a nitrogen-rich liquid stream to the higher pressure column. This increases liquid nitrogen reflux to the higher pressure column to in turn increase the production of liquid oxygen containing column bottoms of the higher pressure column and therefore, the production of oxygen-rich liquid in the lower pressure column. The increased production of the oxygen-rich liquid allows a liquid oxygen product to be taken at an increased rate or for the liquid oxygen product to be taken in the first instance, if the plant is not designed to produce such a product. Also liquid nitrogen and argon products can be produced at an increased rate as a result of the retrofit.

    摘要翻译： 公开了一种用于增加液体生产的方法，其涉及用氮液化器改造现有的空气分离设备。 氮液化器液化从高压塔排出的富氮蒸汽流，将富氮液流返回高压塔。 这将液氮回流增加到较高压力塔，从而增加了高压塔的含有液氧的柱底产物，从而在低压塔中产生富氧液体。 富氧液体的生产量增加允许以增加的速率获取液氧产物，或者如果植物不是设计成生产这样的产品，则首先要采取液氧产物。 此外，由于改造，液氮和氩产品也可以以增加的速度生产。

    METHOD AND DEVICE FOR THE PRODUCTION OF VARIABLE AMOUNTS OF A PRESSURIZED GASEOUS PRODUCT
    4.
    发明申请
    METHOD AND DEVICE FOR THE PRODUCTION OF VARIABLE AMOUNTS OF A PRESSURIZED GASEOUS PRODUCT 审中-公开
    方法和装置变数生成气态高压产品

    公开(公告)号：WO1997004279A1

    公开(公告)日：1997-02-06

    申请号：PCT/EP1996003175

    申请日：1996-07-18

    申请人： LINDE AKTIENGESELLSCHAFT ,  CORDUAN, Horst ,  ALTMEYER, Horst

    发明人： LINDE AKTIENGESELLSCHAFT

    IPC分类号： F25J03/04

    CPC分类号： F25J3/04103 ,  F25J3/0409 ,  F25J3/04224 ,  F25J3/04309 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04509 ,  F25J2205/02 ,  Y10S62/913

    摘要： In the method proposed, charge air is fed to a cryogenic rectifying system (15, 16) where it is split up into its constituent gases, and a liquid fraction (31, 32) is taken off and passed into a first storage tank (33). The pressure of any suitable amount of the liquid fraction (34) is increased (35). The liquid fraction (36) is then evaporated under the increased pressure by indirect heat exchange (12) and converted into a pressurized gaseous product (37). A heat-transfer fluid circulates in a refrigeration circuit fitted with a compressor (41, 42). Part (45) of the flow of heat-transfer fluid (44) compressed in the compressor (41, 42) is fed to the indirect heat-exchange unit (12) where the liquid fraction (36) is evaporated and the heat-transfer fluid (44) at least partly liquefied. Another part (59) of the flow of heat-transfer fluid (44) compressed in the compressor (41, 42) is allowed to expand (43), doing useful work. Liquefied heat-transfer fluid (45, 48) is stored in a buffer storage tank (49).

    摘要翻译： 供给至低温分离的整流原料空气（14，15），从所述取出的液体馏分（31，32）和被引入到第一储存箱（33）。 液体部分（34）的可变数量的压力增加（35）。 的液体馏分（36）在升高的压力下通过间接热交换（12）蒸发并作为气态加压产品（37）中获得。 在制冷循环包括一个压缩机循环（41，42）中循环热载体。 从循环压缩机的第一部分流（45）（41，42）压缩的热载体（44）被馈送到用于蒸发液体部分（36），从而至少部分液化的间接热交换（12）。 从循环压缩机的第二部分流（59）（41，42）压缩的热载体（44）是完成膨胀（43）。 液化的传热介质（45，48）在第二存储罐（49）被缓冲。

    PROCESS FOR THE SEPARATION OF AIR BY CRYOGENIC DISTILLATION
    5.
    发明申请
    PROCESS FOR THE SEPARATION OF AIR BY CRYOGENIC DISTILLATION 审中-公开
    通过低温蒸馏分离空气的方法

    公开(公告)号：WO2014053297A3

    公开(公告)日：2015-11-19

    申请号：PCT/EP2013068965

    申请日：2013-09-13

    申请人： AIR LIQUIDE

    发明人： DAVIDIAN BENOIT ,  DUBETTIER-GRENIER RICHARD ,  PEYRON JEAN-MARC ,  SAULNIER BERNARD

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04175 ,  F25J1/0015 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0202 ,  F25J1/0234 ,  F25J3/04054 ,  F25J3/0406 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04224 ,  F25J3/04315 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04448 ,  F25J3/04496 ,  F25J2200/20 ,  F25J2270/06 ,  F25J2290/12

    摘要： A process for the separation of air by cryogenic distillation operates either with a product ratio greater than 2.5, in which case nitrogen enriched liquid is sent from a storage tank (27) to the column system and nitrogen enriched gas (29) from the column system is compressed in a first compressor (33) having an inlet temperature of less than -50°C and then warmed in the heat exchanger, or with a product ratio less than 2.5, in which case a second nitrogen rich gas removed from the column system is expanded in a turbine (73) having an inlet temperature lower than the ambient temperature or liquefied in a liquefier and nitrogen enriched liquid (57) is sent to the storage tank from the outlet of the turbine and/or from the column system and/or from the liquefier.

    摘要翻译： 通过低温蒸馏分离空气的方法可以以大于2.5的产物比例进行操作，在这种情况下，富氮液体从储罐（27）送入塔系统，富氮气体（29）从塔系统 在入口温度低于-50℃的第一压缩机（33）中被压缩，然后在热交换器中加热，或者产品比小于2.5，在这种情况下，从塔系统中除去的第二富氮气体 在具有低于环境温度的入口温度的涡轮机（73）中膨胀或在液化器中液化的富氮液体（57）从涡轮机的出口和/或从​​塔系统和/ 或来自液化器。

    AN APPARATUS FOR PRODUCING LIQUID NITROGEN
    6.
    发明申请
    AN APPARATUS FOR PRODUCING LIQUID NITROGEN 审中-公开
    生产液氮的装置

    公开(公告)号：WO2015095040A2

    公开(公告)日：2015-06-25

    申请号：PCT/US2014/070330

    申请日：2014-12-15

    申请人： L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE ,  MUSICUS, Paul

    发明人： MUSICUS, Paul

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04206 ,  F25J3/04212 ,  F25J3/0423 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/044 ,  F25J3/0486 ,  F25J2200/50 ,  F25J2200/76 ,  F25J2250/50

    摘要： An apparatus for producing liquid nitrogen is provided. The apparatus includes a heat exchanger (10), a pair of turbine-boosters (50, 70, 53, 80), a warm compressor (40), an air separation unit (19) having a single column (20), a top condenser (23) and a bottom reboiler (21), a liquid/gas separator (60), and an optional subcooler (30). The apparatus is configured to produce merchant or non-merchant grade liquid nitrogen using the pair of turbine-boosters to provide refrigeration and energy for the process.

    摘要翻译： 提供了一种用于生产液氮的装置。 该设备包括热交换器（10），一对涡轮增压器（50,70,53,80），热压缩机（40），具有单个塔（20）的空气分离单元（19），顶部 冷凝器（23）和底部再沸器（21），液体/气体分离器（60）和可选的过冷器（30）。 该设备被配置成使用该对涡轮增压器产生商人或非商人级液氮以为该过程提供制冷和能量。

    METHOD AND DEVICE FOR OBTAINING COMPRESSED OXYGEN AND COMPRESSED NITROGEN BY THE LOW-TEMPERATURE SEPARATION OF AIR
    7.
    发明申请
    METHOD AND DEVICE FOR OBTAINING COMPRESSED OXYGEN AND COMPRESSED NITROGEN BY THE LOW-TEMPERATURE SEPARATION OF AIR 审中-公开
    方法和装置用于获得压力氧气和氮气压力作用的空气低温分离

    公开(公告)号：WO2012019753A2

    公开(公告)日：2012-02-16

    申请号：PCT/EP2011003982

    申请日：2011-08-09

    申请人： LINDE AG ,  SCHWENK DIRK ,  ALEKSEEV ALEXANDER ,  MASTERSON FRANCES ,  GOLOUBEV DIMITRI

    发明人： SCHWENK DIRK ,  ALEKSEEV ALEXANDER ,  MASTERSON FRANCES ,  GOLOUBEV DIMITRI

    IPC分类号： F25J3/04

    CPC分类号： F25J3/04018 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/0423 ,  F25J3/04296 ,  F25J3/04351 ,  F25J3/04357 ,  F25J3/04387 ,  F25J3/04406 ,  F25J3/04412 ,  F25J3/04448 ,  F25J3/04812 ,  F25J3/04884 ,  F25J3/04933 ,  F25J2200/52 ,  F25J2240/10 ,  F25J2240/12 ,  F25J2240/44

    摘要： The invention relates to a method and devoice for obtaining compressed oxygen and compressed nitrogen by the low-temperature separation of air in a distillation column system for nitrogen-oxygen separation, said distillation column system having at least one high-pressure column (8) and one low-pressure column (460), wherein the low-pressure column (460) is in a heat-exchanging connection with the high-pressure column (8) by means of a main condenser (461) designed as a condenser-evaporator. Feed air is compressed in an air compressor (2). The compressed feed air (6, 734, 802, 840) is cooled down in a main heat exchanger (20) and at least partially introduced into the high-pressure column (8). An oxygen-enriched liquid (462, 465) is removed from the high-pressure column (8) and fed to the low-pressure column (460) at a first intermediate position (464, 467, 906). A nitrogen-enriched liquid (468, 470) is removed from the high-pressure column (8) and/or the main condenser (461) and fed to the head of the low-pressure column (460). A liquid oxygen flow (11, 12) is removed from the distillation column system for nitrogen-oxygen separation, brought to an elevated pressure in the liquid state (13), introduced into the main heat exchanger (20) at said elevated pressure, evaporated or pseudo-evaporated and heated to approximately ambient temperature in the main heat exchanger (20), and finally obtained as a gaseous compressed oxygen product (14). A high-pressure process flow (34, 734) is brought into indirect heat exchange with the oxygen flow in the main heat exchanger (20) and then depressurized (36, 38; 736, 738), wherein the depressurized high-pressure flow (37, 737) is introduced at least partially in the liquid state into the distillation column system for nitrogen-oxygen separation. A gaseous circuit nitrogen flow (18, 19) is drawn from the high-pressure column and at least partially (21) compressed in a circuit compressor (22). A first sub-flow (45, 46; 244, 242, 230; 845, 846) of the circuit nitrogen flow is removed from the circuit compressor (22, 322), cooled down in the main heat exchanger (20), at least partially condensed in the bottom evaporator (9, 209) of the high-pressure column (8) in indirect heat exchange with the bottom liquid of the high-pressure column (8), and conducted back into the distillation column system for nitrogen-oxygen separation. A second sub-flow of the circuit nitrogen flow is branched off upstream and/or downstream of the circuit compressor and/or from an intermediate stage of the circuit compressor at a product pressure (P, P1, P2, P3, P4) and obtained as a compressed nitrogen product (27, 29, 53, 564, 565). The circuit compressor (22, 322) is designed as a hot compressor and is driven by means of external energy.

    摘要翻译： 该方法和装置被用于在用于氮氧分离Destilliersäulen-系统中产生由空气低温分馏加压氧气和加压氮气，其具有至少一个通过高压塔（8）和一个低压塔（460），其中，所述低压塔（460） 设计成蒸发器主电容器（461）的冷凝器到高压塔（8）是在热交换连接。 在空气压缩机的进料空气（2）压缩。 压缩进料空气（6，734，802，840）在主热交换器（20）冷却并在高压塔（8）至少部分地被引入。 富氧液体（462，465）被从高压塔（8），并在进料（464，467，906）的第一中间点处的低压塔（460）中除去。 富氮液（468，470）被施加从高压塔（8）和/或主电容（461）和低压塔（460）的顶部移除。 甲液氧流（11，12）从蒸馏塔系统为氮氧分离，成为液体状态，以升高的压力（13）中除去，在主热交换器这个增加的压力下（20）被引入，（20在主热交换器 ）被蒸发或伪蒸发并回收升温至接近环境温度，最后（作为气态加压氧气产物14）。 在液体是，其特征在于，所述松弛高压流（37，737）至少部分; A高压工艺流（34，734）被带入与氧气的流，然后放松（736，738 36，38）的间接热交换在主热交换器（20） 状态引入到用于氮 - 氧分离的蒸馏塔系统。 气态的氮气流电路（18，19）被从高压塔引出并且至少部分（21）在压缩机中循环的压缩机（22）。 第一部分流（45，46; 244，242，230; 845，846）的再循环氮流是从在主热交换器（20）所采取的循环压缩机（22，322）中除去冷却在底部汽化器（9，209）（该高压塔 8）在与所述高压塔（8）至少部分液化，并返回到用于氮氧分离的蒸馏塔系统的底部液体进行间接热交换。 再循环氮流的第二部分流的上游和/或循环压缩机的下游被分支和/或在循环压缩机的中间级的产品压力（P，P1，P2，P3，P4）和作为加压氮气产品（27，29，53，564，565） 赢了。 该循环压缩机（22，322）被设计为温热压缩机，并且通过外部能量驱动。

    NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT
    8.
    发明申请
    NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT 审中-公开
    用于空气分离设备的氮气液化器改造

    公开(公告)号：WO2010002500A3

    公开(公告)日：2010-09-30

    申请号：PCT/US2009043558

    申请日：2009-05-12

    申请人： PRAXAIR TECHNOLOGY INC ,  PARSNICK DAVID ROSS ,  SKARE TODD ALAN

    发明人： PARSNICK DAVID ROSS ,  SKARE TODD ALAN

    IPC分类号： F25J3/04

    CPC分类号： F25J3/0489 ,  F25J3/04224 ,  F25J3/04345 ,  F25J3/04351 ,  F25J3/04357 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04703 ,  F25J3/04715 ,  F25J3/04969 ,  F25J2200/34 ,  F25J2215/56 ,  F25J2290/10

    摘要： A method is disclosed for increasing liquid production involving retrofitting an existing air separation plant with a nitrogen liquefier. The nitrogen liquefier liquefies a nitrogen-rich vapor stream (130) withdrawn from the higher pressure column (44) to return a nitrogen-rich liquid stream (132) to the higher pressure column. This increases liquid nitrogen reflux to the higher pressure column to in turn increase the production of liquid oxygen containing column bottoms of the higher pressure column and therefore, the production of oxygen-rich liquid (96) in the lower pressure column (46). The increased production of the oxygen-rich liquid allows a liquid oxygen product to be taken at an increased rate or for the liquid oxygen product to be taken in the first instance, if the plant is not designed to produce such a product. Also liquid nitrogen and argon products can be produced at an increased rate as a result of the retrofit.

    摘要翻译： 公开了一种用于增加液体生产的方法，其涉及用氮液化器改造现有的空气分离设备。 氮液化器液化从高压塔（44）排出的富氮蒸汽流（130），以将富氮液流（132）返回到高压塔。 这将液氮回流增加到较高压力塔，从而增加了高压塔的含有液氧的塔底产物，从而在低压塔（46）中产生富氧液体（96）。 富氧液体的生产量增加允许以增加的速率获取液氧产物，或者如果植物不是设计成生产这样的产品，则首先要采取液氧产物。 此外，由于改造，液氮和氩产品也可以以增加的速度生产。