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1. 发明授权

US5813251A Process and apparatus for low-temperature separation of air 失效
标题翻译：空气低温分离的方法和装置
公开(公告)号：US5813251A
公开(公告)日：1998-09-29
申请号：US752947
申请日：1996-11-21
申请人： Jurgen Voit
发明人： Jurgen Voit
IPC分类号： F25J3/04 , F25J3/00
CPC分类号： F25J3/0429 , F25J3/04351 , F25J3/044 , F25J2200/38 , F25J2200/76
摘要： The process and the apparatus are used for low-temperature separation of air in a rectifying column system that has a preliminary separation column (10) and a low-pressure column (20). Feed air (1, 3) is introduced (4, 6, 7, 8, 41) into preliminary separation column (10) and is separated into a nitrogen-enriched overhead fraction and an oxygen-enriched bottom fraction. At least a portion (19) of the oxygen-enriched bottom fraction is introduced into the low-pressure column (20), in which liquid oxygen and gaseous nitrogen are produced. The pressure in preliminary separation column (10) is essentially equal to the pressure of low-pressure column (20). The reflux for the columns can be obtained by one or two cyclic processes operated with overhead gas (11, 23) from one or two columns (10, 20).
摘要翻译：该方法和装置用于具有预分离塔（10）和低压塔（20）的精馏塔系统中的空气的低温分离。将进料空气（1,3）引入（4,6,7,8,31）到预分离塔（10）中，并分离成富氮塔顶馏分和富氧塔底馏分。将至少一部分（19）的富氧底部馏分引入生产液氧和氮气的低压塔（20）中。预分离塔（10）中的压力基本上等于低压塔（20）的压力。塔的回流可以通过用一个或两个塔（10,20）的塔顶气体（11,23）操作的一个或两个循环过程获得。

2. 发明授权

US5730004A Triple-column for the low-temperature separation of air 失效
标题翻译：三柱用于空气的低温分离
公开(公告)号：US5730004A
公开(公告)日：1998-03-24
申请号：US728371
申请日：1996-10-10
申请人： Jurgen Voit
发明人： Jurgen Voit
IPC分类号： F25J3/04
CPC分类号： F25J3/04303 , F25J3/04448 , F25J3/04878 , Y10S62/90 , Y10S62/939
摘要： The process and apparatus are based on a triple-column system, having at least a high-pressure column (7), a medium-pressure column (8) and a low-pressure column (9). Feed air (1) is compressed to a first pressure (2). A first partial stream (101, 103, 104) of the resultant air feed (3) is sent into high-pressure column (7) after it has been compressed to a second pressure (5, 102), which is at least equal to the operating pressure of the high-pressure column (7). A second partial stream (201, 202) of the compressed air feed (3) is fed into the medium-pressure column (8). A third partial stream (301, 303, 304) of the compressed air feed (3) is engine-expanded (305) and then fed (306) into the low-pressure column (9). Fractions (18; 26) from the high-pressure column (7) and the medium-pressure column (8) are introduced at least partially into low-pressure column (19, 20; 28, 29). Nitrogen-enriched top fractions (10; 21) from high-pressure column (7) and medium-pressure column (8) are condensed (11; 22). Resultant condensate (13; 24) is fed (15, 16; 25) into low-pressure column (9) as reflux. The first pressure is thus lower than the operating pressure of medium-pressure column (8), thus the second partial stream of the air feed is compressed from the first pressure to a third pressure (5), which is at least equal to the operating pressure of the medium-pressure column (8), but lower than the second pressure.
摘要翻译：该方法和装置基于具有至少高压塔（7），中压塔（8）和低压塔（9）的三塔系统。进料空气（1）被压缩至第一压力（2）。所得空气进料（3）的第一部分流（101,103,104）在其被压缩到第二压力（5,102）之后被送入高压塔（7），该第二压力至少等于高压塔（7）的工作压力。压缩空气进料（3）的第二部分流（201,202）被送入中压塔（8）。压缩空气进料（3）的第三部分流（301,303,304）被发动机膨胀（305），然后进料（306）进入低压塔（9）。将来自高压塔（7）和中压塔（8）的级分（18; 26）至少部分地引入低压塔（19,20,28,29）中。来自高压塔（7）和中压塔（8）的富氮顶馏分（10; 21）被冷凝（11; 22）。将所得的冷凝物（13; 24）作为回流进料（15,16; 25）进入低压塔（9）。因此，第一压力低于中压塔（8）的操作压力，因此空气进料的第二部分流从第一压力压缩到第三压力（5），其至少等于操作中压塔（8）的压力，但低于第二压力。

3. 发明授权

US06490884B2 Process and device for production of oxygen and nitrogen 失效
标题翻译：用于生产氧气和氮气的方法和装置
公开(公告)号：US06490884B2
公开(公告)日：2002-12-10
申请号：US09990365
申请日：2001-11-23
申请人： Herbert Schoenecker , Jurgen Voit
发明人： Herbert Schoenecker , Jurgen Voit
IPC分类号： F25J304
CPC分类号： F25J3/04224 , F25J3/04357 , F25J3/04393 , F25J3/04412 , F25J2200/54 , F25J2200/90 , F25J2205/02 , F25J2245/42
摘要： Oxygen and nitrogen are produced by low-temperature separation of air in a rectification system that has a pressure column (4) and a low-pressure column (5). Charging air (1, 3) is introduced into pressure column (4). An oxygen-containing liquid fraction (8, 10) is removed from pressure column (4) and fed into low-pressure column (5). Gaseous nitrogen (17) from low-pressure column (5) is at least partially condensed in a top condenser (7) by indirect heat exchange with an evaporating cooling fluid (15). A nitrogen product stream (19) is removed from low-pressure column (5) and/or pressure column (4). An oxygen product stream (61, 62, 63) is pulled off from low-pressure column (5). The cooling fluid for top condenser (7) of low-pressure column (5) is formed by an intermediate liquid (15) that is drawn off from an intermediate point on low-pressure column (5).
摘要翻译：在具有压力塔（4）和低压塔（5）的精馏系统中通过空气的低温分离产生氧气和氮气。将充气空气（1,3）引入压力塔（4）。将含氧液体馏分（8,10）从压力塔（4）中取出并进料到低压塔（5）中。来自低压塔（5）的气态氮（17）通过与蒸发冷却流体（15）的间接热交换在顶部冷凝器（7）中至少部分地冷凝。氮气产物流（19）从低压塔（5）和/或压力塔（4）中移出。将氧气产物流（61,62,63）从低压塔（5）中拉出。用于低压塔（5）的顶部冷凝器（7）的冷却流体由从低压塔（5）上的中间点排出的中间液体（15）形成。

4. 发明授权

US5802874A Process and apparatus for liquefying low boiling gas such as nitrogen 失效
标题翻译：用于液化低沸点气体如氮气的方法和装置
公开(公告)号：US5802874A
公开(公告)日：1998-09-08
申请号：US810764
申请日：1997-03-05
申请人： Jurgen Voit
发明人： Jurgen Voit
IPC分类号： F25J1/00 , F25J3/04 , F25J3/00
CPC分类号： F25J3/04224 , F25J1/0015 , F25J1/0037 , F25J1/004 , F25J1/0202 , F25J1/0234 , F25J1/0288 , F25J3/04357 , F25J3/04393 , F25J3/04412 , F25J2245/42 , F25J2270/06 , F25J2290/10 , Y10S62/912
摘要： A process and apparatus are used for liquefying a low-boiling gas, 1, 507, particularly nitrogen. Gas to be liquified is cooled 12 under an increased pressure, is expanded 14 and is then obtained as a liquid product 16. In a refrigeration cycle, cycle medium is compressed to a first pressure 4, 6, 8, 10. A first partial flow 101 of the cycle medium is expanded while carrying out work in a first expansion machine 102. A second partial flow 201 of the cycle medium is cooled 12a and is expanded while carrying out work in a second expansion machine 202. In addition, a third partial flow 301 of the cycle medium is cooled and is expanded in a third expansion machine 302 while carrying out work. All three expansion machines 102, 202, 302 have essentially the same inlet pressure. The cooling of the gas to be liquified is carried out at least partially by the indirect heat exchange with expanded cycle medium 103, 203, 17 in a cycle heat exchanger 12. The outlet pressures of the three expansion machines 102, 202, 302 are essentially the same.
摘要翻译：一种方法和装置用于液化低沸点气体，尤其是氮气。待液化的气体在增压下冷却12，膨胀14，然后作为液体产物16获得。在制冷循环中，将循环介质压缩至第一压力4,6,8,10。第一部分流 101循环介质在第一膨胀机102中进行工作时膨胀。循环介质的第二部分流201被冷却12a并在第二膨胀机202中进行工作时膨胀。另外，第三部分循环介质的流动301被冷却并在第三膨胀机302中进行膨胀，同时进行工作。所有三个膨胀机102,202,302具有基本相同的入口压力。要液化的气体的冷却至少部分地通过与循环热交换器12中的膨胀循环介质103,203,17的间接热交换进行。三个膨胀机102,202,302的出口压力基本上一样。

5. 发明授权

US06314755B1 Double column system for the low-temperature fractionation of air 失效
$Double column system for the low-temperature fractionation of air$
标题翻译：双柱系统用于空气的低温分馏
公开(公告)号：US06314755B1
公开(公告)日：2001-11-13
申请号：US09513176
申请日：2000-02-25
申请人： Herbert Schoenecker , Jurgen Voit
发明人： Herbert Schoenecker , Jurgen Voit
IPC分类号： F25J300
CPC分类号： F25J3/04412 , F25J3/0409 , F25J3/04315 , F25J2200/20 , F25J2210/04 , F25J2230/40 , F25J2245/42
摘要： The process and the apparatus serve for the low-temperature fractionation of air in a rectification system that has at least one pressure column and one low-pressure column. Feed air is compressed to a first pressure p1 in a first compressor, purified in a purification stage, cooled and at least in part introduced into the pressure column. At least one liquid fraction from the pressure column is fed into the low-pressure column. A nitrogen-rich fraction from the low-pressure column is warmed and mixed with feed air. The warmed nitrogen-rich fraction is mixed with the feed air downstream of the feed air purification stage. The mixture of feed air and nitrogen-rich fraction is further compressed in a second compressor to a second pressure p2 which is higher than the first pressure p1.
摘要翻译：该方法和装置用于具有至少一个压力塔和一个低压塔的精馏系统中的空气的低温分馏。进料空气在第一压缩机中被压缩至第一压力p1，在纯化阶段中纯化，冷却至少部分地引入压力塔。来自压力塔的至少一个液体部分被供给到低压塔中。将来自低压塔的富氮馏分加热并与进料空气混合。将加热的富氮馏分与进料空气净化级的下游的进料空气混合。进料空气和富氮馏分的混合物在第二压缩机中被进一步压缩至高于第一压力p1的第二压力p2。

6. 发明授权

US5669237A Method and apparatus for the low-temperature fractionation of air 失效
$Method and apparatus for the low-temperature fractionation of air$
标题翻译：用于低温分馏空气的方法和装置
公开(公告)号：US5669237A
公开(公告)日：1997-09-23
申请号：US614974
申请日：1996-03-11
申请人： Jurgen Voit
发明人： Jurgen Voit
IPC分类号： F25J3/04
CPC分类号： F25J3/04709 , F25J3/04018 , F25J3/04139 , F25J3/04157 , F25J3/04169 , F25J3/04303 , F25J3/04381 , F25J3/04387 , F25J3/04418 , F25J3/04442 , F25J3/04448 , F25J3/04678 , F25J3/04878 , F25J3/04884 , F25J2200/54 , F25J2200/90 , F25J2205/32 , F25J2205/62 , F25J2215/52 , F25J2230/24 , F25J2235/02 , F25J2240/10
摘要： For the method, air (103, 104) is fractionated in a medium-pressure column (6) and a low-pressure column (5). The sump heating (3) of the low-pressure column (5) is carried out with a second airflow (204), which is liquefied at the same time. An intermediate fraction (18) is taken from the low-pressure column (5) and evaporated in the head condenser (10) of the medium-pressure column (6). The thereby resulting vapor (19) is returned to the low-pressure column. In the event that impure oxygen is obtained, the second airflow (203, 204) is recompressed (202) upstream from the sump heating (3), external energy being supplied, to a pressure above that of the medium-pressure column, the pressure being relieved downstream from the sump heating (3) in a first pressure relief valve (208) to the pressure of the medium-pressure column (6). If pure oxygen is recovered, the sump heating of the low-pressure column is operated with an airflow, which at the same time is condensed at least partially and is under a pressure, which is less than the pressure of the medium-pressure column. If oxygen of high and low purity is to be recovered, a portion of the evaporated first intermediate fraction and/or a fraction obtained below the second intermediate site are recovered from the low-pressure column as oxygen product of lower purity.
摘要翻译：对于该方法，空气（103,104）在中压塔（6）和低压塔（5）中分馏。低压塔（5）的贮槽加热（3）用同时液化的第二气流（204）进行。中间馏分（18）从低压塔（5）取出并在中压塔（6）的头冷凝器（10）中蒸发。由此产生的蒸气（19）返回到低压塔。在获得不纯的氧气的情况下，将第二气流（203,204）从容器加热器（3）的上游再次压缩（202），外部能量被供给到高于中压塔的压力的压力，压力在第一减压阀（208）中的贮槽加热（3）的下游释放到中压塔（6）的压力。如果回收纯氧，低压塔的贮槽加热是以气流的形式运行的，气流同时被冷凝至少部分并处于小于中压塔压力的压力下。如果要回收高纯度和低纯度的氧气，则从低压塔中回收一部分蒸发的第一中间馏分和/或低于第二中间位点的馏分作为较低纯度的氧产物。

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