WO2008116727A3 - Procédé et appareil de séparation de l'air par distillation cryogénique - Google Patents
Procédé et appareil de séparation de l'air par distillation cryogénique Download PDFInfo
- Publication number
- WO2008116727A3 WO2008116727A3 PCT/EP2008/052571 EP2008052571W WO2008116727A3 WO 2008116727 A3 WO2008116727 A3 WO 2008116727A3 EP 2008052571 W EP2008052571 W EP 2008052571W WO 2008116727 A3 WO2008116727 A3 WO 2008116727A3
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- WIPO (PCT)
- Prior art keywords
- air
- heat exchanger
- column
- outlet pressure
- compressor
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
- F25J3/0406—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of nitrogen
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- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
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- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
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- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
- F25J3/04066—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of oxygen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
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- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/04084—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of nitrogen
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- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/04096—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of argon or argon enriched stream
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- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
- F25J3/04812—Different modes, i.e. "runs" of operation
- F25J3/04836—Variable air feed, i.e. "load" or product demand during specified periods, e.g. during periods with high respectively low power costs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/02—Mixing or blending of fluids to yield a certain product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/08—Cold compressor, i.e. suction of the gas at cryogenic temperature and generally without afterstage-cooler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/40—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
- F25J2240/44—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval the fluid being nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/40—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
- F25J2240/46—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval the fluid being oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/58—Processes or apparatus involving steps for recycling of process streams the recycled stream being argon or crude argon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/42—One fluid being nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/58—One fluid being argon or crude argon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/02—Internal refrigeration with liquid vaporising loop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/12—External refrigeration with liquid vaporising loop
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2270/00—Refrigeration techniques used
- F25J2270/66—Closed external refrigeration cycle with multi component refrigerant [MCR], e.g. mixture of hydrocarbons
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
L'invention concerne un procédé de séparation de l'air par distillation cryogénique dans un système de colonnes comprenant une colonne haute pression (8) et une colonne basse pression (9). Ce procédé consiste: à comprimer la totalité de l'air d'amenée dans un premier compresseur (6) à une première pression de sortie, supérieure au plus de deux bars à la pression de la colonne haute pression; à envoyer une première partie de l'air à la première pression de sortie vers un deuxième compresseur (230) et à comprimer l'air à une deuxième pression de sortie; à refroidir et condenser au moins une partie de l'air à la deuxième pression de sortie dans un échangeur de chaleur (5); à retirer du liquide d'une colonne du système de colonnes, à mettre sous pression le liquide et à vaporiser le liquide par échange de chaleur dans l'échangeur de chaleur et à vaporiser au moins partiellement un fluide auxiliaire dans l'échangeur de chaleur, éventuellement à réchauffer un peu plus ledit fluide auxiliaire de chaleur dans l'échangeur de chaleur, à envoyer au moins une partie de ce fluide auxiliaire vers un troisième compresseur (108) pour y être compressé à une troisième pression de sortie; et à introduire au moins une partie dudit fluide auxiliaire à ladite troisième pression de sortie dans l'échangeur de chaleur, l'entrée dudit troisième compresseur étant à une température inférieure à la température ambiante.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07300895A EP1972875A1 (fr) | 2007-03-23 | 2007-03-23 | Procédé et dispositif pour la séparation cryogénique d'air |
EP07300895.5 | 2007-03-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008116727A2 WO2008116727A2 (fr) | 2008-10-02 |
WO2008116727A3 true WO2008116727A3 (fr) | 2009-06-11 |
Family
ID=38577449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/052571 WO2008116727A2 (fr) | 2007-03-23 | 2008-03-03 | Procédé et appareil de séparation de l'air par distillation cryogénique |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1972875A1 (fr) |
WO (1) | WO2008116727A2 (fr) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011018207A2 (fr) * | 2009-08-11 | 2011-02-17 | Linde Aktiengesellschaft | Procédé et dispositif pour générer un produit gazeux sous pression contenant de l'oxygène par fractionnement cryogénique de l'air |
FR3010511B1 (fr) * | 2013-09-10 | 2017-08-11 | Air Liquide | Procede et appareil de separation d'un melange gazeux a temperature subambiante |
TWI641789B (zh) * | 2015-07-10 | 2018-11-21 | 艾克頌美孚上游研究公司 | 使用液化天然氣製造液化氮氣之系統與方法 |
TWI608206B (zh) | 2015-07-15 | 2017-12-11 | 艾克頌美孚上游研究公司 | 藉由預冷卻天然氣供給流以增加效率的液化天然氣(lng)生產系統 |
TWI606221B (zh) | 2015-07-15 | 2017-11-21 | 艾克頌美孚上游研究公司 | 一倂移除溫室氣體之液化天然氣的生產系統和方法 |
EP3390941A1 (fr) | 2015-12-14 | 2018-10-24 | Exxonmobil Upstream Research Company | Procédé et système pour séparer l'azote d'un gaz naturel liquéfié à l'aide d'azote liquéfié |
CN108291767B (zh) | 2015-12-14 | 2021-02-19 | 埃克森美孚上游研究公司 | 在储存液氮的lng运输工具上的天然气液化的方法 |
CN105823302B (zh) * | 2016-05-18 | 2018-12-28 | 杭州杭氧股份有限公司 | 一种能实现氧气内外压缩流程互换的空气分离装置及方法 |
US10663115B2 (en) | 2017-02-24 | 2020-05-26 | Exxonmobil Upstream Research Company | Method of purging a dual purpose LNG/LIN storage tank |
JP7150063B2 (ja) | 2018-06-07 | 2022-10-07 | エクソンモービル アップストリーム リサーチ カンパニー | 高圧圧縮および膨張による天然ガスの前処理および前冷却 |
CA3109351C (fr) | 2018-08-14 | 2023-10-10 | Exxonmobil Upstream Research Company | Conservation de fluide frigorigene mixte dans des installations de liquefaction de gaz naturel |
CA3109918C (fr) | 2018-08-22 | 2023-05-16 | Exxonmobil Upstream Research Company | Gestion de la variation de la composition de gaz d'appoint pour un procede de detendeur a haute pression |
CA3109750A1 (fr) | 2018-08-22 | 2020-02-27 | Exxonmobil Upstream Research Company | Configuration d'echangeur de chaleur pour un procede de detente haute pression et procede de liquefaction de gaz naturel l'utilisant |
JP7179155B2 (ja) | 2018-08-22 | 2022-11-28 | エクソンモービル アップストリーム リサーチ カンパニー | 高圧エキスパンダプロセスのための一次ループ始動方法 |
US11215410B2 (en) | 2018-11-20 | 2022-01-04 | Exxonmobil Upstream Research Company | Methods and apparatus for improving multi-plate scraped heat exchangers |
WO2020106394A1 (fr) | 2018-11-20 | 2020-05-28 | Exxonmobil Upstream Research Company | Procédé prico utilisant des échangeurs de chaleur tolérants aux solides |
US11668524B2 (en) | 2019-01-30 | 2023-06-06 | Exxonmobil Upstream Research Company | Methods for removal of moisture from LNG refrigerant |
WO2020159671A1 (fr) | 2019-01-30 | 2020-08-06 | Exxonmobil Upstream Research Company | Procédés d'élimination de l'humidité d'un fluide frigorigène de gnl |
US11465093B2 (en) | 2019-08-19 | 2022-10-11 | Exxonmobil Upstream Research Company | Compliant composite heat exchangers |
US20210063083A1 (en) | 2019-08-29 | 2021-03-04 | Exxonmobil Upstream Research Company | Liquefaction of Production Gas |
JP7326484B2 (ja) | 2019-09-19 | 2023-08-15 | エクソンモービル・テクノロジー・アンド・エンジニアリング・カンパニー | 高圧圧縮及び膨張による天然ガスの前処理及び予冷 |
US11806639B2 (en) | 2019-09-19 | 2023-11-07 | ExxonMobil Technology and Engineering Company | Pretreatment and pre-cooling of natural gas by high pressure compression and expansion |
WO2021055074A1 (fr) | 2019-09-20 | 2021-03-25 | Exxonmobil Upstream Research Company | Élimination des gaz acides d'un flux gazeux avec enrichissement de o2 pour la capture et la séquestration des gaz acides |
JP2022548529A (ja) | 2019-09-24 | 2022-11-21 | エクソンモービル アップストリーム リサーチ カンパニー | Lng及び液体窒素のための船舶又は浮遊貯蔵ユニット上の両用極低温タンクのための貨物ストリッピング機能 |
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US5228297A (en) * | 1992-04-22 | 1993-07-20 | Praxair Technology, Inc. | Cryogenic rectification system with dual heat pump |
US5596885A (en) * | 1994-06-20 | 1997-01-28 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and installation for the production of gaseous oxygen under pressure |
US5901577A (en) * | 1997-04-03 | 1999-05-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and plant for air separation by cryogenic distillation |
US6009723A (en) * | 1998-01-22 | 2000-01-04 | Air Products And Chemicals, Inc. | Elevated pressure air separation process with use of waste expansion for compression of a process stream |
US6112550A (en) * | 1998-12-30 | 2000-09-05 | Praxair Technology, Inc. | Cryogenic rectification system and hybrid refrigeration generation |
US6336345B1 (en) * | 1999-07-05 | 2002-01-08 | Linde Aktiengesellschaft | Process and apparatus for low temperature fractionation of air |
EP1767884A1 (fr) * | 2005-09-23 | 2007-03-28 | L'Air Liquide Société Anon. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude | Procédé et dispositif pour la séparation cryogénique d'air |
-
2007
- 2007-03-23 EP EP07300895A patent/EP1972875A1/fr not_active Withdrawn
-
2008
- 2008-03-03 WO PCT/EP2008/052571 patent/WO2008116727A2/fr active Application Filing
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Publication number | Priority date | Publication date | Assignee | Title |
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US5228297A (en) * | 1992-04-22 | 1993-07-20 | Praxair Technology, Inc. | Cryogenic rectification system with dual heat pump |
US5596885A (en) * | 1994-06-20 | 1997-01-28 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and installation for the production of gaseous oxygen under pressure |
US5901577A (en) * | 1997-04-03 | 1999-05-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and plant for air separation by cryogenic distillation |
US6009723A (en) * | 1998-01-22 | 2000-01-04 | Air Products And Chemicals, Inc. | Elevated pressure air separation process with use of waste expansion for compression of a process stream |
US6112550A (en) * | 1998-12-30 | 2000-09-05 | Praxair Technology, Inc. | Cryogenic rectification system and hybrid refrigeration generation |
US6336345B1 (en) * | 1999-07-05 | 2002-01-08 | Linde Aktiengesellschaft | Process and apparatus for low temperature fractionation of air |
EP1767884A1 (fr) * | 2005-09-23 | 2007-03-28 | L'Air Liquide Société Anon. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude | Procédé et dispositif pour la séparation cryogénique d'air |
Also Published As
Publication number | Publication date |
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WO2008116727A2 (fr) | 2008-10-02 |
EP1972875A1 (fr) | 2008-09-24 |
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