公开(公告)号：WO2015014485A3

公开(公告)日：2015-09-24

申请号：PCT/EP2014002074

申请日：2014-07-29

Applicant: LINDE AG

Inventor： ALEKSEEV ALEXANDER ,  GOLOUBEV DIMITRI ,  ECKERT THOMAS

IPC: F25J3/04

CPC classification number: F25J3/04424 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/04048 ,  F25J3/04054 ,  F25J3/0406 ,  F25J3/04084 ,  F25J3/04115 ,  F25J3/04121 ,  F25J3/04127 ,  F25J3/04145 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04339 ,  F25J3/04351 ,  F25J3/04387 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04569 ,  F25J3/04781 ,  F25J3/04787 ,  F25J3/04872 ,  F25J3/04878 ,  F25J2200/52 ,  F25J2200/54 ,  F25J2205/04 ,  F25J2230/40 ,  F25J2235/52 ,  F25J2240/04 ,  F25J2240/10 ,  F25J2245/02 ,  F25J2245/40 ,  F25J2270/02

Abstract: The invention relates to a method and to a device that serve for producing compressed nitrogen by low-temperature decomposition of air in a distillation column system which has a high-pressure column (202), a low-pressure column (203), a high-pressure column head condenser (204) and a low-pressure column head condenser (205). A main air compressor (9) constitutes the only gas compressor powered by external energy. In the main air compressor (9) the feed air is compressed to a total air pressure which is at least 5 bars above the operating pressure of the high-pressure column (202). A first part-stream (56) of the high-pressure total air stream (11, 811) from the main air compressor (9) is expanded to perform work as operating pressure of the high-pressure column or a higher pressure (57) and is introduced into the distillation column system (201). A second part-stream (52, 55) of the high-pressure total air stream (11, 811) is cooled in a main heat exchanger (51) and is introduced at least partially in liquid form into the distillation column system (206, 210). An internally compressed nitrogen stream is formed by a part-stream (319) of the liquid nitrogen stream (215) from the high-pressure column head condenser (204) and/or a part-stream (234, 334) of the liquid nitrogen stream (232) from the low-pressure column head condenser (205); the internally compressed nitrogen stream is brought in the liquid state to a product pressure (235, 335a, 335b) which is between 15 and 100 bars; then the internally compressed nitrogen stream is heated in the main heat exchanger (51) and then extracted as a gaseous compressed nitrogen product (60) below the product pressure.

Abstract translation: 该方法和设备服务用于通过空气的低温分馏在蒸馏塔系统中产生加压氮气，具有高压塔（202）和一个低压塔（203）和一个高压塔顶部冷凝器（204）和一个低压塔顶部冷凝器（205）。 主空气压缩机（9）表示仅由外部能量气体压缩机驱动; 在进料空气被压缩至总气压为至少5巴的高压塔（202）的操作压力以上。 高压的第一部分流（56）从主空气压缩机（9）的总空气流（11，811）是高压塔的工作操作压力或更高的压力被释放（57）和导入到蒸馏塔系统（201）。 高压的总的空气流（11，811）的第二个部分流（52，55）在引入到蒸馏塔系统（206，210）的主热交换器（51）和至少部分液体被冷却。 内部压缩的氮气流被从高压塔顶部冷凝器（204）和/或从低压塔顶部冷凝器（205）的液体氮流（232）的部分流（234，334）的液体氮流（215）的部分流（319）而形成; 它被带入液体状态向产品压力（235，335A，335B），其位于15和100巴之间; 然后将其在主热交换器（51）加热，然后作为气态加压氮产品流（60）的产物在压力下排出。

公开(公告)号：WO2014102014A3

公开(公告)日：2015-05-28

申请号：PCT/EP2013003929

申请日：2013-12-20

Applicant: LINDE AG

Inventor： GOLOUBEV DIMITRI

IPC: F25J3/04

CPC classification number: F25J3/04412 ,  F25J3/0409 ,  F25J3/04206 ,  F25J3/04296 ,  F25J3/04442 ,  F25J3/0486 ,  F25J3/04878 ,  F25J3/04884 ,  F25J3/0489 ,  F25J2235/50 ,  F25J2250/02 ,  F25J2250/04 ,  F25J2250/10 ,  F25J2250/40 ,  F25J2250/50

Abstract: The method and the device are used for the low-temperature separation of air in a distillation column system comprising a high-pressure column (11) and a low-pressure column (12). Feed air is compressed in a main air compressor. The compressed feed air is purified in a purification device. The purified feed air is cooled in a main heat exchanger. A first partial stream (1) of the cooled feed air is introduced into the distillation column system in a gaseous state. A second partial flow (2a; 2b) of the cooled feed air is introduced into the liquefying chamber of a secondary condenser (46) which is in the form of a condenser-evaporator that has a condensation chamber and an evaporation chamber. A liquid oxygen fraction from the low-pressure column is introduced into the evaporation chamber of the secondary condenser. An oxygen product fraction is removed from the evaporation chamber of the secondary condenser in a gaseous state, heated in the main heat exchanger and finally obtained as a gaseous oxygen product. A first gaseous nitrogen product fraction is removed from the distillation column system, heated in the main heat exchanger and obtained as a first gaseous nitrogen product. The distillation column system also has a precolumn (10). The first partial stream (1) of the cooled feed air is introduced into the precolumn (10). The first gaseous nitrogen production fraction is removed from the precolumn. The precolumn (10) has a head condenser (14) which is in the form of a condenser-evaporator that has a condensation chamber and an evaporation chamber. A liquefied portion of the second partial stream is removed from the liquefaction chamber of the secondary condenser and introduced into the evaporation chamber of the head condenser (14). A gaseous fraction (31) from the upper region of the precolumn (10) is introduced into the condensation chamber of the head condenser (14). Fluid (6) formed in the condensation chamber is at least partially fed to the precolumn (10) as return flow (7). The secondary condenser (46), the head condenser (14) and the precolumn (10) are arranged above one another.

Abstract translation: 该方法和设备用于在蒸馏塔系统包括高压塔（11）和一个低压塔（12）的空气的低温分离。 进料空气在主空气压缩机中被压缩。 压缩进料空气中的清洁装置进行清洁。 将纯化的进料空气在主热交换器中被冷却。 冷却的进料空气的第一部分流（1）被引入到气态Destillationssäulen-系统。 第二部分流（2A，2B）的冷却的进料空气被引入到次级冷凝器（46），其被设计为冷凝器 - 蒸发器与所述冷凝室和蒸发室的液化空间。 从低压塔A液氧馏分被引入Nebenkondenstors的蒸发室。 氧气产物馏分在从次级冷凝器的蒸发空间中的气态形式取出，在加热该主热交换器，然后回收作为气态氧产品。 第一气态氮产物馏分从蒸馏塔系统中抽出，在加热该主热交换器和回收作为第一气体氮产物。 该蒸馏塔系统还包括预柱（10）。 冷却的进料空气的第一部分流（1）被引入到预柱（10）。 第一气态氮产物馏分从预塔中抽出。 预柱（10）具有顶部冷凝器（14），其被设计为冷凝器 - 蒸发器与所述冷凝室和蒸发室。 第二分流的液化馏分从第二冷凝器的冷凝空间抽出并引入到顶部冷凝器（14）的蒸发空间。 从预塔（10）顶部的气态馏分（31）被引入到塔顶冷凝器（14）的冷凝空间。 在（6）形成所述冷凝腔室的液体进料至少部分地作为预柱（10）回流（7）。 第二冷凝器（46），所述塔顶冷凝器（14）和保护柱（10）被布置成一个在另一个之上。

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

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

Inventor： SCHWENK DIRK ,  ALEKSEEV ALEXANDER ,  MASTERSON FRANCES ,  GOLOUBEV DIMITRI

IPC: F25J3/04

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2014146779A3

公开(公告)日：2015-11-26

申请号：PCT/EP2014000723

申请日：2014-03-18

Applicant: LINDE AG

Inventor： GOLOUBEV DIMITRI

IPC: F25J3/04

CPC classification number: F25J3/0257 ,  F25J3/04054 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04387 ,  F25J3/04393 ,  F25J3/044 ,  F25J3/04442 ,  F25J3/0486 ,  F25J3/04915 ,  F25J3/08 ,  F25J2200/54 ,  F25J2240/10 ,  F25J2250/02 ,  F25J2250/04 ,  F25J2290/12

Abstract: The invention relates to a method and device for generating gaseous compressed nitrogen by the low-temperature separation of air in a distillation column system, said distillation column system having a pre-column (41), a high-pressure column (42) and a low-pressure column (43). All the feed air is compressed in a main air compressor (103), purified in a purification apparatus (104) and cooled down in a main heat exchanger (2). A first sub-flow (11) of the cooled feed air is introduced in gaseous form into the pre-column (41). A second sub-flow (21) of the cooled feed air is introduced (23, 24) in a predominantly liquid state into the distillation column system. A gaseous fraction (51) from the upper region of the pre-column (41) is introduced into the liquefaction chamber of a pre-column head condenser (44). Liquid (52) formed in the liquefaction chamber is fed as reflux (53) into the pre-column (41). A first nitrogen product fraction (65) is drawn in gaseous form from the high-pressure column (42), heated in the main heat exchanger (2) and obtained as first gaseous compressed nitrogen product. At least a part (23) of the second sub-flow (21) is introduced into the evaporation chamber of the pre-column head condenser (44). A third sub-flow (34) of the cooled feed air is expanded to perform work (35) and subsequently (36) introduced into the liquefaction chamber of a bottom evaporator (45) of the low-pressure column and there at least partially liquefied. The liquefied third sub-flow (37, 38) is introduced into the low-pressure column (43). An intermediate liquid of the low-pressure column (43) is at least partially evaporated in the evaporation chamber of an intermediate evaporator (46) of the low-pressure column (43). A gaseous head fraction (59) from the high-pressure column (42) is as least partially liquefied in the liquefaction chamber of the intermediate evaporator (46), and liquid (59, 60) resulting therefrom is fed as reflux into the high-pressure column (42). More than 35 Mol % in the form of the first nitrogen product fraction (65), which is drawn in gaseous form from the high-pressure column (42), is heated in the main heat exchanger (2) and obtained as first gaseous compressed nitrogen product (66).

Abstract translation: 该方法和设备服务用于通过空气的低温分馏在蒸馏塔系统，包括一个前置柱（41），一个高压塔（42）和一个低压塔（43）产生气态的加压氮气。 整个进料空气在主空气压缩机（103），在清洁装置（104），清洗和（2）中被冷却主热交换器压缩。 冷却的进料空气的第一部分流（11）以气态形式引入到预柱（41）。 冷却的进料空气的第二部分流（21）以液态形式引入主要是在蒸馏塔系统（23，24）。 从预柱（41）顶部的气态馏分（51）被引入到柱前顶部冷凝器（44）的液化空间。 在的液体形成的（52）作为回流（53）上的预柱（41）液化空间。 第一氮产物馏分（65）以气态形式被抽出从高压塔（42）在加热该主热交换器（2）和回收作为第一气体加压的氮产品。 至少第二部分流（21）的一个部分（23）被引入到预柱顶部冷凝器（44）的蒸发空间。 冷却的进料空气的第三部分流（34）被引入以执行工作（35），然后（36）到低压塔底部再沸器（45），并有至少部分液化的液化的空间。 液化的第三部分流（37，38）被引入到低压塔（43）。 在低压塔（43）的中间蒸发器（46）的蒸发室至少部分地蒸发的低压塔（43）的中间液体。 在中间蒸发器（46）从该高压塔（42）的气态塔顶馏分（58）的液化空间至少部分液化，并由此回收的液体（59，60）被供给作为回流到高压塔（42）。 超过35摩尔％的在所述第一氮产物馏分（65）的形式加热以气态形式从主热交换器（2）的高压塔（42）抽出并回收作为第一气体加压的氮产品（66）。

公开(公告)号：WO2015003809A3

公开(公告)日：2015-09-24

申请号：PCT/EP2014001892

申请日：2014-07-10

Applicant: LINDE AG

Inventor： KIRCHNER LARS ,  GOLOUBEV DIMITRI

IPC: F25J3/04

CPC classification number: F25J3/04836 ,  F25J3/04018 ,  F25J3/04024 ,  F25J3/0406 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04169 ,  F25J3/04181 ,  F25J3/04206 ,  F25J3/04218 ,  F25J3/0426 ,  F25J3/04309 ,  F25J3/04351 ,  F25J3/04412 ,  F25J3/04418 ,  F25J3/04424 ,  F25J3/04496 ,  F25J3/04581 ,  F25J3/04618 ,  F25J3/04812 ,  F25J3/0483 ,  F25J3/0486 ,  F25J3/04878 ,  F25J3/04884 ,  F25J3/04957 ,  F25J3/0605 ,  F25J3/066 ,  F25J2200/06 ,  F25J2200/54 ,  F25J2205/32 ,  F25J2205/34 ,  F25J2205/62 ,  F25J2205/70 ,  F25J2210/50 ,  F25J2230/04 ,  F25J2230/24 ,  F25J2230/30 ,  F25J2230/42 ,  F25J2235/52 ,  F25J2240/70 ,  F25J2250/04 ,  F25J2250/40 ,  F25J2250/50

Abstract: The method and the device serve to produce oxygen by the low-temperature separation of air at variable energy consumption. A distillation column system comprises a high-pressure column (34), a low-pressure column (35) and a main condenser (36), a secondary condenser (26) and a supplementary condenser (37). Gaseous nitrogen (41, 42) from the high-pressure column (34) is liquefied in the main condenser (36) in indirect heat exchange with an intermediate liquid (43) from the low-pressure column (35). A first liquid oxygen stream (70) from the bottom of the low-pressure column (35) is evaporated in the secondary condenser (26) in indirect heat exchange with feed air (25b) to obtain a gaseous oxygen product (72). The supplementary condenser serves as a bottom heating device for the low-pressure column (35) and is heated by means of a first nitrogen stream (44) from the distillation column system, which nitrogen stream was compressed previously in a cold compressor (45). In a second operating mode of lower energy consumption, less feed air (1) is compressed in the main air compressor (3) of the installation to a lower pressure compared to a first operating mode of higher energy consumption, less liquid oxygen (70) from the low-pressure column (35) is passed into the secondary condenser (26) and more nitrogen is compressed in the cold compressor (45). Furthermore, in the second operating mode, a second liquid oxygen stream (73) is additionally passed into the secondary condenser (26).

Abstract translation: 该方法和装置用于通过具有可变功率消耗空气的低温分离氧的回收。 的蒸馏塔系统，该系统包括一个高压塔（34），一个低压塔（35）和一个主电容器（36），一个第二冷凝器（26）和附加电容器（37）。 在从与所述低压塔的中间液（43）进行间接热交换的高压塔（34）的主冷凝器（36），氮气（41，42）（35）液化。 在第二冷凝器（26），从与进料空气（25b）的，以便获得一个气态氧产品（72）中蒸发进行间接热交换的低压塔（35）的底部的第一液氧流（70）。 附加电容器被用作低压塔（35）的底部加热，并通过从蒸馏塔系统，该系统已在冷压缩机（45）预先压缩氮气（44）的第一气流加热。 具有较低功率消耗的第二工作模式中的主空气压缩机更小的进料空气（1）（3）将植株的液体较少的氧（70）被压缩到比与来自低压塔（35）较高的能量消耗的第一操作模式中的较低的压力（在侧冷凝器 26）被引入，并在冷压缩机（45）压缩的更多的氮。 另外，在第二操作模式中的第二冷凝器（26）被附加地提供给第二液氧流（73）。

公开(公告)号：WO2014154361A2

公开(公告)日：2014-10-02

申请号：PCT/EP2014000832

申请日：2014-03-27

Applicant: LINDE AG

Inventor： GOLOUBEV DIMITRI

CPC classification number: F25J3/04418 ,  F25J3/0409 ,  F25J3/04254 ,  F25J3/04296 ,  F25J3/04375 ,  F25J3/04412 ,  F25J3/04496 ,  F25J3/04957 ,  F25J2205/04 ,  F25J2210/40 ,  F25J2210/50 ,  F25J2215/54 ,  F25J2230/24 ,  F25J2230/40

Abstract: The invention relates to a method and to a device for the variable production of compressed oxygen by means of low-temperature separation of air in a distillation column system which comprises a high-pressure column (5) and a low-pressure column (6). Process air in form of a total air stream (1) is cooled in a main heat exchanger (3). At least a part of the cooled process air is fed into the high-pressure column (5). A first oxygen stream (35) from the low-pressure column (6) is brought to an elevated pressure (36) in a liquid state, is vaporized, or pseudo-vaporized, and heated in the main heat exchanger (3), and is finally obtained as a gaseous compressed oxygen product. Prior to entering the main heat exchanger (3), a first and a second partial stream (12) of the process air are brought to a high pressure (9, 10), which is at least 4 bars higher than the operating pressure of the high-pressure column (5). The first partial stream is liquefied, or pseudo-liquefied, in the main heat exchanger (3), and is subsequently introduced into the distillation column system (14). The second partial stream (16) is expanded to perform work (17), and is subsequently introduced into the distillation column system (4). In a first operating mode, a first total air quantity is cooled in the main heat exchanger (3), and a first turbine amount as first partial stream (16) is fed to the expansion to perform work. In a second operating mode, a second oxygen stream (46) from an external source outside the distillation column system is introduced into the low-pressure column (6) in a liquid state. There is less total air (1) cooled in the main heat exchanger (3), and less air is fed to the expansion (17) to perform work than in the first operating mode.

Abstract translation: 该方法和设备用于通过在具有高压塔（5）和低压塔（6）的蒸馏塔系统中对空气进行低温分离来可变地产生气态氧。 进料空气在主热交换器（3）中以总气流（1）的形式冷却。 至少一部分冷却的进料空气被引入高压塔（5）。 从低压塔（6）的第一氧流（35）被带入液体状态到升高的压力（36），蒸发在主热交换器（3）或伪蒸发，加热，然后回收作为气态加压氧产品。 进料空气的第一和第二部分流（12）将被带到其进入主热交换器（3）到高压（9，10），所述杆比高压塔（5）的至少的操作压力高。4 第一子流在主热交换器（3）中液化或假液化，然后引入蒸馏塔系统（14）。 第二分流（16）被扩大工作（17），然后被引入蒸馏塔系统（4）。 在第一操作模式中，主热交换器（3）中的第一总空气量被冷却并且第一量的涡轮机被供应为工作膨胀的第一分流量（16）。 在第二操作中，从在液体状态下的蒸馏塔系统外部的外部源到所述低压塔（6）的第二氧气流（46）被引入，较少的总的空气（1）在主热交换器（3）进行冷却的执行工作的膨胀的更少的空气（17） 按照第一种模式供应。

公开(公告)号：WO2013053425A3

公开(公告)日：2014-08-28

申请号：PCT/EP2012003945

申请日：2012-09-20

Applicant: LINDE AG

Inventor： ALEKSEEV ALEXANDER ,  GOLOUBEV DIMITRI

IPC: F25J3/04 ,  F04D29/58

CPC classification number: F25J3/04 ,  F25J3/04018 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04169 ,  F25J3/04181 ,  F25J3/04206 ,  F25J3/04218 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04448 ,  F25J3/0486 ,  F25J3/04878 ,  F25J3/04884 ,  F25J3/04957 ,  F25J2200/54 ,  F25J2205/32 ,  F25J2205/34 ,  F25J2205/62 ,  F25J2210/06 ,  F25J2230/04 ,  F25J2230/40 ,  F25J2235/52 ,  F25J2250/04 ,  F25J2250/40 ,  F25J2250/50

Abstract: The invention relates to a method and device for generating two purified partial air streams under different pressures. A total air stream (1) is compressed to a first total air pressure. The compressed total air stream (5) is cooled with cooling water under the first total air pressure by way of heat exchange (4, 6). The heat exchange with cooling water for cooling the total air stream (5) is carried out as a direct heat exchange in a first direct contact cooler (6), at least in part. The cooled total air stream (9) is divided into a first partial air stream (10) and a second partial air stream (11). The first partial air stream (10) is purified in a first purification device (18) under the first total air pressure, generating the first purified partial air stream (19). The second partial air stream (11) is re-compressed to a higher pressure (12), which is higher than the first total air pressure. The re-compressed second partial air stream (14) is cooled with cooling water in a second direct contact cooler (15) by way of direct heat exchange (13, 15). The cooled second partial air stream (17) is purified under the higher pressure in a second purification device (30), thus generating the second purified partial air stream (31).

Abstract translation: 该方法和设备被用于各种压力下产生净化的空气的两个分流。 共气流（1）被压缩到第一总空气压力。 将压实的总空气流量（5）是通过热交换在第一总空气压力以下（4,6）中的冷却用的冷却水。 与冷却水的热交换来冷却（5）至少部分地作为在一个第一直接接触冷却器（6）的直接热交换进行的总空气流。 将冷却的总气流（9）被分成第一部分的空气流（10）和第二部分空气流（11）。 第一部分空气流（10）由所述第一总空气压力在第一清洁装置（18）清洁并回收作为第一净化空气分流（19）。 第二部分空气流（11）被进一步压缩至更高的压力（12），其比所述第一总空气压力高。 再压缩的第二部分空气流（14）是在第二直接接触冷却器（15）通过直接热交换（13,15）由冷却水冷却。 冷却的第二空气流部分（17）由较高压力在第二清洁装置（30），清洁并回收作为第二净化空气分流（31）。

公开(公告)号：EP3163237A1

公开(公告)日：2017-05-03

申请号：EP15003096

申请日：2015-10-29

Applicant: LINDE AG

Inventor： MOLL ANTON ,  GOLOUBEV DIMITRI

IPC: F25J3/04

CPC classification number: F25J3/0409 ,  F25J3/04084 ,  F25J3/0429 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04387 ,  F25J3/04393 ,  F25J3/04448 ,  F25J3/04678 ,  F25J3/04872 ,  F25J3/04878 ,  F25J3/04909 ,  F25J3/04939 ,  F25J3/04963 ,  F25J2240/10 ,  F25J2245/58

Abstract: Das Destillationssäulen-System und das Verfahren dienen zur Erzeugung von Sauerstoff durch Tieftemperaturzerlegung von Luft in einem Destillationssäulen-System das eine Hochdrucksäule (101) und eine Niederdrucksäule (102), einen Hauptkondensator (103), der als Kondensator-Verdampfer ausgebildet ist, und eine Hilfssäule (140) aufweist. Eine gasförmige sauerstoffhaltige Fraktion (129a) wird in die Hilfssäule (140) eingeleitet. Ein stickstoffhaltiger Flüssigstrom (120, 109b) aus der Hochdrucksäule (101), dem Hauptkondensator (103) oder der Niederdrucksäule (102) wird als Rücklauf auf den Kopf der Hilfssäule (140) aufgegeben. Ein argonreicher Strom (158a) von einer einer Zwischenstelle der Niederdrucksäule (102) wird in eine Argonausschleussäule (152) eingeleitet, die einen Argonausschleussäulen-Kopfkondensator (155) aufweist. Die Argonausschleussäule (152) und die Hilfssäule (140) sind in einem gemeinsamen Behälter (160) angeordnet, der als Trennwandkolonne ausgebildet ist und eine vertikale Trennwand (161) aufweist.

Abstract translation: 蒸馏塔系统和用于通过在蒸馏塔系统包括高压塔（101）和一个低压塔（102），一个主电容器（103），其被设计为冷凝器 - 蒸发器的空气的低温分离生产氧的方法，和 辅助塔（140）。 将气态含氧部分（129a）引入辅助塔（140）。 甲从高压塔（101）的液体流（120，109B）含氮，主电容器（103）或低压塔（102）被供给作为回流到辅助塔（140）的头部。 将来自低压塔（102）的一个中间点的富氩流（158a）引入具有氩排放塔顶冷凝器（155）的氩排放塔（152）中。 所述Argonausschleussäule（152）和辅助塔（140）被布置在一个共同的容器（160）被设计成一个分隔壁塔，和一个垂直隔板（161）。

公开(公告)号：PL2603754T3

公开(公告)日：2017-08-31

申请号：PL11743030

申请日：2011-08-09

Applicant: LINDE AG

Inventor： SCHWENK DIRK ,  ALEKSEEV ALEXANDER ,  MASTERSON FRANCES ,  GOLOUBEV DIMITRI

IPC: F25J3/04

公开(公告)号：AU2012311959A1

公开(公告)日：2014-03-20

申请号：AU2012311959

申请日：2012-09-20

Applicant: LINDE AG

Inventor： DEMSKI GEORG ,  ALEKSEEV ALEXANDER ,  RATHBONE THOMAS ,  GOLOUBEV DIMITRI ,  YAYLI AYHAN

IPC: F25J3/04

Abstract: The method and the device are used for the cryogenic decomposition of air in a distillation column system for separating nitrogen and oxygen, said system having a first high-pressure column (23), a low-pressure column (25, 26), and three condenser-evaporators, namely a high-pressure column head condenser (27), a low-pressure column bottom evaporator (28), and an auxiliary condenser (29; 228). A first feed air stream is cooled in a main heat exchanger (20, 21). The cooled first feed air stream (22) is introduced into the first high-pressure column (23) under a first pressure. Gaseous head nitrogen (44, 45) from the first high-pressure column (23) is condensed in the high-pressure column head condenser (27). At least one part (47) of the head nitrogen (46) which is condensed in the high-pressure column head condenser (27) is delivered to the first high-pressure column (23) as reflux liquid. A part of the bottom liquid (66) of the low-pressure column (25, 26) is evaporated in the low-pressure column bottom evaporator (28) in indirect heat exchange with a condensing heating fluid (58). A non-evaporated part (67) of the bottom liquid (66) of the low-pressure column (25, 26) is at least partially evaporated in the auxiliary condenser (29; 228). At least one part of the liquid (68) evaporated in the auxiliary condenser (29; 228) is obtained as a gaseous oxygen product (69). The distillation column system for separating nitrogen and oxygen additionally has a second high-pressure column (24). A second feed air stream (35) is cooled in the main heat exchanger (20, 21) and subsequently introduced into the second high-pressure column (24) under a second pressure which is higher than the first pressure. At least one part of the head gas (58) of the second high-pressure column (24) is used as heating fluid in the low-pressure column bottom evaporator (28).