公开(公告)号：US09574821B2

公开(公告)日：2017-02-21

申请号：US14293003

申请日：2014-06-02

申请人： Jeremiah J. Rauch ,  Sophia J. Dowd ,  Andrew M. Warta ,  Catherine B. Sarigiannis ,  Wei Zhang

发明人： Jeremiah J. Rauch ,  Sophia J. Dowd ,  Andrew M. Warta ,  Catherine B. Sarigiannis ,  Wei Zhang

IPC分类号： F25J3/00 ,  F25J1/00 ,  F25J3/04

CPC分类号： F25J3/04024 ,  F25J1/0012 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04218 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04781 ,  F25J3/04812 ,  F25J3/08 ,  F25J2210/40 ,  F25J2215/54 ,  F25J2220/40 ,  F25J2230/30 ,  F25J2230/40 ,  F25J2240/46 ,  F25J2245/40

摘要： A system and method for separating air in an air separation plant is provided. The disclosed systems and methods divert a portion of the compressed, purified air stream to a bypass system configured to selectively produce a higher pressure compressed output stream or a lower pressure compressed output stream. The higher pressure and/or lower pressure compressed output streams are cooled in a main heat exchanger by indirect heat transfer with a plurality of product streams from the air separation plant and then rectified in the distillation column system. A second portion of the compressed, purified air stream is partially cooled in the main heat exchanger and expanding in a turbo-expander to produce power and an exhaust stream which is directed to the distillation column system of the air separation plant where it imparts additional refrigeration generated by the expansion of the compressed air stream in the turbo-expander.

摘要翻译： 提供了一种用于分离空气分离设备中的空气的系统和方法。 所公开的系统和方法将一部分压缩的净化空气流转移到配置成选择性地产生较高压力的压缩输出流或低压压缩输出流的旁路系统。 较高压力和/或较低压力的压缩输出流在主热交换器中通过与来自空气分离设备的多个产物流的间接传热冷却，然后在蒸馏塔系统中进行精馏。 压缩的纯化空气流的第二部分在主热交换器中被部分冷却，并在涡轮膨胀机中膨胀以产生动力和排气流，该排气流被引导到空气分离设备的蒸馏塔系统， 通过涡轮膨胀机中的压缩空气流的膨胀而产生。

公开(公告)号：US20160025408A1

公开(公告)日：2016-01-28

申请号：US14444438

申请日：2014-07-28

申请人： Zhengrong Xu ,  Neil M. Prosser ,  Yang Luo

发明人： Zhengrong Xu ,  Neil M. Prosser ,  Yang Luo

IPC分类号： F25J3/04

CPC分类号： F25J3/04412 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04678 ,  F25J2215/54 ,  F25J2240/46

摘要： A method and apparatus for separating air by cryogenic rectification in which cooled, compressed and purified air is separated in a distillation column system having higher and lower pressure columns operatively associated with one another in a heat transfer relationship to produce an oxygen-rich liquid stream from the lower pressure column. The oxygen-rich liquid stream is pumped and heated through indirect heat exchange with a compressed heat exchange stream to form a pressurized oxygen product stream. Part of the air is sequentially and successively compressed in booster compressors driven by turboexpanders to form the compressed heat exchange stream while other parts of the air are expanded in turboexpanders driving the booster compressors to form exhaust streams that are introduced into both the higher and lower pressure columns to generate refrigeration.

摘要翻译： 一种通过低温精馏分离空气的方法和装置，其中在具有较高和较低压力塔的蒸馏塔系统中分离冷却，压缩和净化的空气，所述蒸馏塔系统以热传递关系彼此操作地相关联，以产生富氧液体流 低压塔。 通过与压缩的热交换流的间接热交换来泵送和加热富氧液体流，以形成加压氧产物流。 一部分空气在由涡轮膨胀机驱动的增压压缩机中依次并连续地压缩，以形成压缩的热交换流，而空气的其他部分在涡轮膨胀机中膨胀，驱动增压压缩机以形成引入高压和低压的排气流 柱产生制冷。

公开(公告)号：US08136369B2

公开(公告)日：2012-03-20

申请号：US11500712

申请日：2006-08-08

申请人： Jean-Renaud Brugerolle ,  Bao Ha

发明人： Jean-Renaud Brugerolle ,  Bao Ha

IPC分类号： F25J3/00

CPC分类号： C01B13/0248 ,  C01B2210/0046 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04103 ,  F25J3/04206 ,  F25J3/04212 ,  F25J3/04254 ,  F25J3/0426 ,  F25J3/04303 ,  F25J3/04412 ,  F25J3/04454 ,  F25J3/04527 ,  F25J3/04557 ,  F25J3/04575 ,  F25J3/04581 ,  F25J3/04963 ,  F25J2205/90 ,  F25J2210/50 ,  F25J2215/02 ,  F25J2215/50 ,  F25J2240/20 ,  F25J2240/30 ,  F25J2240/46 ,  F25J2245/50 ,  F25J2250/02 ,  F25J2250/20 ,  F25J2250/40 ,  F25J2250/42 ,  F25J2250/50 ,  F25J2290/60 ,  Y02P20/131

摘要： A hybrid system which utilizes high purity oxygen from a local pipeline, which is blended with low purity oxygen from an on-site or local cryogenic distillation system, thus resulting in a blend of intermediate quality which satisfies the needs of the customer. In order to offset the operating and energy costs associated with this fairly low profit margin intermediate purity oxygen, high purity nitrogen at high pressure is simultaneously exported to the local pipeline, thereby acting as a credit to the overall system.

摘要翻译： 一种混合系统，利用来自现场或局部低温蒸馏系统的低纯度氧气混合来自局部管道的高纯度氧气，从而产生满足客户需求的中等质量的混合物。 为了抵消与这种相当低利润率的中等纯度氧相关的运营和能源成本，高压下的高纯度氮同时输出到本地管道，从而作为对整个系统的信用。

公开(公告)号：US5941098A

公开(公告)日：1999-08-24

申请号：US990085

申请日：1997-12-12

申请人： Alain Guillard ,  Patrick Le Bot

发明人： Alain Guillard ,  Patrick Le Bot

IPC分类号： F25J3/04 ,  F25J1/00

CPC分类号： F25J3/04836 ,  F25J3/0403 ,  F25J3/04036 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04236 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04812 ,  F25J2215/54 ,  F25J2230/50 ,  F25J2240/46 ,  F25J2290/10 ,  F25J2290/62

摘要： Up to a certain value (D1) of the demanded flow rate (D), this flow rate is brought to the working pressure and is sent to the consumer pipe. When the demanded flow rate is less than the value (D1), the complement to (D1) is brought to a high pressure, greater than the working pressure, and is sent into a buffer tank. Above the value (D1), the flow rate is supplemented by a flow rate which is drawn from the buffer tank and expanded to the working pressure. The method is useful in supplying oxygen to steel works with electric arc furnaces or to copper refineries.

摘要翻译： 达到所需流量（D）的一定值（D1），该流量被带到工作压力并被发送到消费管。 当要求流量小于值（D1）时，对（D1）的补数达到高于工作压力的高压，并送入缓冲罐。 高于值（D1），流量由从缓冲罐抽出并扩展到工作压力的流量补充。 该方法可用于向钢铁厂或铜精炼厂供应氧气。

公开(公告)号：US20180347900A1

公开(公告)日：2018-12-06

申请号：US15995742

申请日：2018-06-01

申请人： LINDE AKTIENGESELLSCHAFT

发明人： Dimitri GOLUBEV

IPC分类号： F25J3/04

CPC分类号： F25J3/04175 ,  F25J3/0406 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04296 ,  F25J3/04351 ,  F25J3/04381 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04678 ,  F25J3/04727 ,  F25J2200/92 ,  F25J2215/54 ,  F25J2240/46

摘要： The invention proposes a process and an air separation plant comprising a rectification column system comprising a high-pressure column, a low-pressure column, a main heat exchanger, and a main air compressor. The total air supplied to the rectification column system is compressed in the main air compressor to a first pressure level. The high-pressure column is operated at a second pressure level, at least 3 bar below the first pressure level. A gaseous, nitrogen-rich fluid is removed from the high-pressure column and warmed up in the gaseous state without prior liquefaction. A first partial quantity of the gaseous, nitrogen-rich fluid is warmed to a first temperature level of −150 to −100° C., supplied at this first temperature level to a booster and compressed further to a third pressure level. The first partial quantity is then warmed to a second temperature level and discharged from the air separation plant.

公开(公告)号：US20170030636A1

公开(公告)日：2017-02-02

申请号：US14815881

申请日：2015-07-31

申请人： AIR LIQUIDE GLOBAL E&C SOLUTIONS US INC.

发明人： Paul MUSICUS

IPC分类号： F25J3/04

CPC分类号： F25J3/04878 ,  F25J3/0406 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04351 ,  F25J3/04393 ,  F25J3/04448 ,  F25J2215/54 ,  F25J2235/50 ,  F25J2240/46 ,  F25J2250/20

摘要： An apparatus for the production of low pressure gaseous oxygen includes a heat exchanger and a system of columns comprised of an auxiliary column, a higher pressure column and a lower pressure column. The LP column and the HP column are thermally integrated via a top reboiler/condenser disposed on top of the HP column. The system of columns is configured to separate a cooled air stream into oxygen and nitrogen. The auxiliary column comprises a distillation section and a first and second reboiler. One of the reboilers is driven by the cooled air stream and the other reboiler is driven by a pressurized nitrogen stream. The first and second reboilers boil their fluids at the same pressure as the auxiliary column.

摘要翻译： 用于生产低压气态氧的装置包括热交换器和由辅助塔，高压塔和低压塔组成的塔的系统。 LP柱和HP柱通过设置在HP柱顶部的顶部再沸器/冷凝器进行热集成。 塔的系统被配置为将冷却的空气流分离成氧和氮。 辅助塔包括蒸馏段和第一和第二再沸器。 一个再沸器由冷却的空气流驱动，另一个再沸器由加压氮气流驱动。 第一和第二再沸器在与辅助塔相同的压力下沸腾其流体。

公开(公告)号：US20150345857A1

公开(公告)日：2015-12-03

申请号：US14293003

申请日：2014-06-02

申请人： Jeremiah J. Rauch ,  Sophia J. Dowd ,  Andrew M. Warta ,  Catherine B. Sarigiannis ,  Wei Zhang

发明人： Jeremiah J. Rauch ,  Sophia J. Dowd ,  Andrew M. Warta ,  Catherine B. Sarigiannis ,  Wei Zhang

IPC分类号： F25J1/00

CPC分类号： F25J3/04024 ,  F25J1/0012 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04218 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04393 ,  F25J3/04412 ,  F25J3/04781 ,  F25J3/04812 ,  F25J3/08 ,  F25J2210/40 ,  F25J2215/54 ,  F25J2220/40 ,  F25J2230/30 ,  F25J2230/40 ,  F25J2240/46 ,  F25J2245/40

摘要： A system and method for separating air in an air separation plant is provided. The disclosed systems and methods divert a portion of the compressed, purified air stream to a bypass system configured to selectively produce a higher pressure compressed output stream or a lower pressure compressed output stream. The higher pressure and/or lower pressure compressed output streams are cooled in a main heat exchanger by indirect heat transfer with a plurality of product streams from the air separation plant and then rectified in the distillation column system. A second portion of the compressed, purified air stream is partially cooled in the main heat exchanger and expanding in a turbo-expander to produce power and an exhaust stream which is directed to the distillation column system of the air separation plant where it imparts additional refrigeration generated by the expansion of the compressed air stream in the turbo-expander.

摘要翻译： 提供了一种用于分离空气分离设备中的空气的系统和方法。 所公开的系统和方法将一部分压缩的净化空气流转移到配置成选择性地产生较高压力的压缩输出流或低压压缩输出流的旁路系统。 较高压力和/或较低压力的压缩输出流在主热交换器中通过与来自空气分离设备的多个产物流的间接传热冷却，然后在蒸馏塔系统中进行精馏。 压缩的纯化空气流的第二部分在主热交换器中被部分冷却，并在涡轮膨胀机中膨胀以产生动力和排气流，该排气流被引导到空气分离设备的蒸馏塔系统， 通过涡轮膨胀机中的压缩空气流的膨胀而产生。

公开(公告)号：US20020170313A1

公开(公告)日：2002-11-21

申请号：US10094137

申请日：2002-03-11

申请人： LINDE AKTIENGESELLSCHAFT

发明人： Gerhard Zapp ,  Christian Kunz

IPC分类号： F25J003/00

CPC分类号： F25J3/04824 ,  F25J3/0409 ,  F25J3/04157 ,  F25J3/04218 ,  F25J3/04296 ,  F25J3/04375 ,  F25J3/04412 ,  F25J3/04545 ,  F25J3/04563 ,  F25J3/04575 ,  F25J3/04606 ,  F25J3/04878 ,  F25J2205/02 ,  F25J2205/04 ,  F25J2205/32 ,  F25J2210/04 ,  F25J2215/02 ,  F25J2215/40 ,  F25J2215/54 ,  F25J2240/44 ,  F25J2240/46 ,  F25J2245/42 ,  F25J2245/50 ,  Y10S62/913 ,  Y10S62/915

摘要： The process and the apparatus serve for separating a gas mixture in a separation plant. A feed gas (18) is introduced into a compressor system (6, 16) and then into the separation plant. In the event of loss or partial loss of the compressor system (6, 16) of the first feed gas compressor (6), a first auxiliary stream (91, 92) which has approximately the composition of the first product stream or approximately the composition of the feed gas is compressed (78, 89) to at least approximately the first pressure and is recirculated to the separation plant.

摘要翻译： 该方法和装置用于分离分离装置中的气体混合物。 将进料气体（18）引入压缩机系统（6,16）中，然后进入分离设备。 在第一进料气体压缩机（6）的压缩机系统（6,16）的损失或部分损失的情况下，具有大致组成第一产物流或大致组成的第一辅助流（91,92） 的进料气体被压缩（78,89）至少大约第一压力并被再循环到分离设备。

公开(公告)号：US3210948A

公开(公告)日：1965-10-12

申请号：US26034263

申请日：1963-01-29

申请人： AIR PROD & CHEM

发明人： SCHILLING CLARENCE J

IPC分类号： C08F291/18 ,  F25J3/04

CPC分类号： C08F291/185 ,  F25J3/0409 ,  F25J3/04175 ,  F25J3/04296 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04381 ,  F25J3/04387 ,  F25J3/04393 ,  F25J3/04412 ,  F25J2205/04 ,  F25J2240/10 ,  F25J2240/12 ,  F25J2240/22 ,  F25J2240/46 ,  F25J2290/12 ,  Y10S62/91

公开(公告)号：US10018414B2

公开(公告)日：2018-07-10

申请号：US14815887

申请日：2015-07-31

申请人： L'Air Liquide, Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude

发明人： Paul Musicus

IPC分类号： F25J1/02 ,  F25J3/04

CPC分类号： F25J3/04878 ,  F25J3/0406 ,  F25J3/04303 ,  F25J3/04309 ,  F25J3/04351 ,  F25J3/04393 ,  F25J3/04448 ,  F25J2215/54 ,  F25J2235/50 ,  F25J2240/46 ,  F25J2250/20

摘要： A method for the production of low pressure gaseous oxygen includes providing a system of distillation columns and a heat exchanger, wherein the system of columns comprises a lower pressure column, a higher pressure column, an auxiliary column, the auxiliary column having a distillation section, a first reboiler, and a second reboiler, wherein the LP column and the HP column are thermally integrated via a top reboiler/condenser disposed on top of the HP column. A cooled air stream is rectified within the system of columns such that the auxiliary column produces a cold oxygen fluid that is then warmed in the heat exchanger to produce a low pressure oxygen product. The cooled air stream provides reboiling duty for the first reboiler prior to rectification within the system of columns, and a compressed nitrogen stream received from a cold end of the heat exchanger provides reboiling duty for the second reboiler.