EP1074805A1 - Procédé et dispositif pour la production d'oxygène sous pression - Google Patents

Procédé et dispositif pour la production d'oxygène sous pression Download PDF

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Publication number
EP1074805A1
EP1074805A1 EP99118724A EP99118724A EP1074805A1 EP 1074805 A1 EP1074805 A1 EP 1074805A1 EP 99118724 A EP99118724 A EP 99118724A EP 99118724 A EP99118724 A EP 99118724A EP 1074805 A1 EP1074805 A1 EP 1074805A1
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EP
European Patent Office
Prior art keywords
pressure
pressure column
low
air
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99118724A
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German (de)
English (en)
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EP1074805B1 (fr
Inventor
Wilhelm Rohde
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Linde GmbH
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Linde GmbH
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Application filed by Linde GmbH filed Critical Linde GmbH
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Classifications

    • 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
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
    • F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
    • F25J3/04206—Division of the main heat exchange line in consecutive sections having different functions including a so-called "auxiliary vaporiser" for vaporising and producing a gaseous 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
    • 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
    • F25J3/04054—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 air
    • 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
    • F25J3/04078—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
    • F25J3/0409—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 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
    • 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
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
    • 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
    • F25J3/04406—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 using a dual pressure main column system
    • F25J3/04412—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 using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • 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
    • F25J2250/40—One fluid being air
    • 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
    • F25J2250/50—One fluid being oxygen

Definitions

  • the invention relates to a process for the production of oxygen under superatmospheric pressure through low-temperature air separation in one Rectification system that has at least one pressure column and one low pressure column has, wherein feed air is compressed to a first pressure which is approximately equal to Operating pressure of the pressure column is at least a first partial flow of the feed air cooled to the first pressure in a main heat exchanger and into the pressure column is initiated, an oxygen flow being taken from the low pressure column a discharge pressure that is higher than the operating pressure of the low pressure column, brought, warmed in the main heat exchanger and removed as a product, and whereby a process stream relaxes work and into the low pressure column is fed in and at least part of the work-related relaxation generated mechanical energy is used to drive a cold compressor.
  • the invention has for its object such a method energetically to make it cheaper.
  • This object is achieved in that the oxygen flow from the low pressure column brought to the delivery pressure in the liquid state and by indirect Heat exchange with a second partial flow which compresses to the first pressure Feed air is evaporated, the second partial stream upstream of the indirect Heat exchange is brought to a second pressure by means of the cold compressor.
  • the oxygen product stream itself is not by means of the Expansion machine driven cold compressor to an increased pressure brought, but a partial air flow, which is used to evaporate the liquid Oxygen flow serves under an increased pressure.
  • a greater effect can be achieved in this way, that means the discharge pressure of the oxygen is at the same loss of cold Cold compressors higher than in the previously known method.
  • the first pressure to which the first and the second partial flow of air share are compressed is slightly above the operating pressure of the pressure column.
  • the Pressure difference is preferably such that the first partial flow of air Flow resistance between the air compressor and the pressure column without pressure-changing measures can overcome, and is for example 0.1 to 0.5 bar.
  • the operating pressures at the head of the rectification columns are, for example, 2.5 to 10 bar, preferably 4 to 7 bar in the pressure column and 1.05 to 4 bar, preferably 1.1 to 1.5 bar in the low pressure column.
  • an air compressor is preferably the only one external driven machine used. This brings the total air to the first pressure, which is simultaneously the inlet pressure of the expansion machine and the cold compressor represents. In this way, the oxygen product can be released under a pressure can be obtained, for example, 0.5 to 4 bar, preferably 1 to 3 bar the operating pressure of the low pressure column is without an additional Energy consumption compared to the extraction of the oxygen product below Low pressure column pressure is connected.
  • the cold compressed partial air flow is used for indirect heat exchange with the evaporating oxygen at least partially, preferably completely or in essentially fully condensed.
  • the condensate is then released and fed to the pressure column and / or the low pressure column.
  • the method according to the invention is particularly suitable for the extraction of impure Oxygen with a purity of 80 to 99.5 mol%, preferably 90 to 95 mol% suitable under superatmospheric pressure.
  • the work-relieving relaxation can be nitrogen, for example fed from the top of the pressure column or any other fraction from the pressure column become.
  • the process stream is that of work-relieving relaxation is subjected, however, by a third partial flow to the first pressure compressed feed air formed.
  • the Braking device can for example by a brake blower and / or Brake generator be formed and is located outside of the cold box, which for Insulation of the cold parts of the apparatus is used. This allows energy to be transferred to the Given the environment and thus the cold necessary for the process without using another relaxation machine.
  • relaxation machine, cold compressor and braking device immediately mechanically coupled, for example via a common shaft.
  • the invention also relates to a device according to claim 5.
  • Atmospheric air 1 is passed through a filter 2 in an air compressor 3 compressed to a first pressure which is approximately equal to the operating pressure of the pressure column 13 is. (To overcome the line losses, the first pressure must be slightly above the Pressure column pressures are, for example, less than 1 bar, preferably 0.5 bar or less.)
  • compressed air flows through line 7 to Main heat exchanger 8 and is partially cooled there to about dew point.
  • the cold air 9 is at 10 into a first partial flow 11 and a second partial flow 12 divided up.
  • the first partial stream 11 is directly into the pressure column 13 of the Rectification system, directly above the swamp.
  • the Rectification system also has a low pressure column 14 which over a common condenser-evaporator, the main condenser 15 in Heat exchange relationship with the pressure column 13 is.
  • the second partial flow 12 is in a cold compressor 16 to a second, higher Bring pressure, via line 17 to a secondary condenser 18, which as Circulation evaporator is trained (not shown), performed, and there essential completely liquefied.
  • the liquefied air 19 is fed into the pressure column via a valve 20 13 throttled, either at the sump (see drawing) or at an intermediate point, the some theoretical or practical floors above the feed of the first partial stream 11.
  • Liquid raw oxygen 24 from the bottom of the pressure column 13 and liquid nitrogen 25 from the main condenser 15 are cooled in the subcooling countercurrent 26 and applied to the low pressure column 14 via the valves 27 and 28, respectively.
  • nitrogen-rich residual gas 29 is withdrawn and after heating in the supercooling counterflow 26 and in the main heat exchanger 8 discharged via line 30. It can also be used as a regeneration gas in the Cleaning device 6 are used (not shown).
  • liquid oxygen coincides with the required purity.
  • a portion is withdrawn liquid via line 31, by means of a pump 32 brought to the required delivery pressure and under this pressure evaporates in the secondary condenser 18.
  • the gaseous pressurized oxygen product flows via line 33 to the main heat exchanger and is via line 34 below Ambient temperature given.
EP99118724A 1999-08-05 1999-09-22 Procédé et dispositif pour la production d'oxygène sous pression Revoked EP1074805B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19936816A DE19936816A1 (de) 1999-08-05 1999-08-05 Verfahren und Vorrichtung zur Gewinnung von Sauerstoff unter überatmosphärischem Druck
DE19936816 1999-08-05

Publications (2)

Publication Number Publication Date
EP1074805A1 true EP1074805A1 (fr) 2001-02-07
EP1074805B1 EP1074805B1 (fr) 2005-01-19

Family

ID=7917229

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99118724A Revoked EP1074805B1 (fr) 1999-08-05 1999-09-22 Procédé et dispositif pour la production d'oxygène sous pression

Country Status (5)

Country Link
US (1) US6332337B1 (fr)
EP (1) EP1074805B1 (fr)
AT (1) ATE287518T1 (fr)
DE (2) DE19936816A1 (fr)
ES (1) ES2237008T3 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830928A1 (fr) * 2001-10-17 2003-04-18 Air Liquide Procede de separation d'air par distillation cryogenique et une installation pour la mise en oeuvre de ce procede
DE102007031759A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren und Vorrichtung zur Erzeugung von gasförmigem Druckprodukt durch Tieftemperaturzerlegung von Luft
DE102007031765A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren zur Tieftemperaturzerlegung von Luft
DE102009034979A1 (de) 2009-04-28 2010-11-04 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Erzeugung von gasförmigem Drucksauerstoff
EP2312248A1 (fr) 2009-10-07 2011-04-20 Linde Aktiengesellschaft Procédé et dispositif de production d'oxygène sous pression et de crypton/xénon
EP2458311A1 (fr) 2010-11-25 2012-05-30 Linde Aktiengesellschaft Procédé et dispositif de production d'un produit d'impression gazeux par décomposition à basse température d'air
DE102010052544A1 (de) 2010-11-25 2012-05-31 Linde Ag Verfahren zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft
EP2520886A1 (fr) 2011-05-05 2012-11-07 Linde AG Procédé et dispositif de production d'un produit comprimé à oxygène gazeux par décomposition à basse température d'air
EP2568242A1 (fr) 2011-09-08 2013-03-13 Linde Aktiengesellschaft Procédé et dispositif destinés à la production d'acier
EP2600090A1 (fr) 2011-12-01 2013-06-05 Linde Aktiengesellschaft Procédé et dispositif destinés à la production d'oxygène sous pression par décomposition à basse température de l'air
DE102011121314A1 (de) 2011-12-16 2013-06-20 Linde Aktiengesellschaft Verfahren zur Erzeugung eines gasförmigen Sauerstoff-Druckprodukts durch Tieftemperaturzerlegung von Luft
DE102013017590A1 (de) 2013-10-22 2014-01-02 Linde Aktiengesellschaft Verfahren zur Gewinnung eines Krypton und Xenon enthaltenden Fluids und hierfür eingerichtete Luftzerlegungsanlage
DE102012017488A1 (de) 2012-09-04 2014-03-06 Linde Aktiengesellschaft Verfahren zur Erstellung einer Luftzerlegungsanlage, Luftzerlegungsanlage und zugehöriges Betriebsverfahren
EP2784420A1 (fr) 2013-03-26 2014-10-01 Linde Aktiengesellschaft Procédé de séparation de l'air et installation de séparation de l'air
WO2014154339A2 (fr) 2013-03-26 2014-10-02 Linde Aktiengesellschaft Procédé de séparation d'air et installation de séparation d'air
EP2801777A1 (fr) 2013-05-08 2014-11-12 Linde Aktiengesellschaft Installation de décomposition de l'air dotée d'un entraînement de compresseur principal
EP2963369A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif cryogeniques de separation d'air
EP2963367A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procédé et dispositif cryogéniques de séparation d'air avec consommation d'énergie variable
EP2963370A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif cryogeniques de separation d'air
EP2963371A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif de production d'un produit de gaz sous pression par decomposition a basse temperature d'air

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702757A (en) * 1986-08-20 1987-10-27 Air Products And Chemicals, Inc. Dual air pressure cycle to produce low purity oxygen
EP0558082A1 (fr) * 1992-02-27 1993-09-01 Praxair Technology, Inc. Procédé de rectification cryogénique en utilisant une pompe de chaleur d'argon
US5355682A (en) * 1993-09-15 1994-10-18 Air Products And Chemicals, Inc. Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen
US5386692A (en) * 1994-02-08 1995-02-07 Praxair Technology, Inc. Cryogenic rectification system with hybrid product boiler
US5626036A (en) * 1994-08-29 1997-05-06 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for the production of oxygen by cryogenic distillation
US5765396A (en) * 1997-03-19 1998-06-16 Praxair Technology, Inc. Cryogenic rectification system for producing high pressure nitrogen and high pressure oxygen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2544340A1 (de) 1975-10-03 1977-04-14 Linde Ag Verfahren zur luftzerlegung
US5315833A (en) * 1991-10-15 1994-05-31 Liquid Air Engineering Corporation Process for the mixed production of high and low purity oxygen
US5379598A (en) * 1993-08-23 1995-01-10 The Boc Group, Inc. Cryogenic rectification process and apparatus for vaporizing a pumped liquid product
FR2711778B1 (fr) * 1993-10-26 1995-12-08 Air Liquide Procédé et installation de production d'oxygène et/ou d'azote sous pression.
GB9410686D0 (en) * 1994-05-27 1994-07-13 Boc Group Plc Air separation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4702757A (en) * 1986-08-20 1987-10-27 Air Products And Chemicals, Inc. Dual air pressure cycle to produce low purity oxygen
EP0558082A1 (fr) * 1992-02-27 1993-09-01 Praxair Technology, Inc. Procédé de rectification cryogénique en utilisant une pompe de chaleur d'argon
US5355682A (en) * 1993-09-15 1994-10-18 Air Products And Chemicals, Inc. Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen
US5386692A (en) * 1994-02-08 1995-02-07 Praxair Technology, Inc. Cryogenic rectification system with hybrid product boiler
US5626036A (en) * 1994-08-29 1997-05-06 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for the production of oxygen by cryogenic distillation
US5765396A (en) * 1997-03-19 1998-06-16 Praxair Technology, Inc. Cryogenic rectification system for producing high pressure nitrogen and high pressure oxygen

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830928A1 (fr) * 2001-10-17 2003-04-18 Air Liquide Procede de separation d'air par distillation cryogenique et une installation pour la mise en oeuvre de ce procede
WO2003033978A3 (fr) * 2001-10-17 2003-10-02 Air Liquide Procede de separation d'air par distillation cryogenique et une installation pour la mise en oeuvre de ce procede
US7219514B2 (en) 2001-10-17 2007-05-22 L'Air Liquide, Société Anonyme á Directoire et Conseil de Surveillance our l'Etude et l'Exploitation des Procédés Georges Claude Method for separating air by cryogenic distillation and installation therefor
DE102007031759A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren und Vorrichtung zur Erzeugung von gasförmigem Druckprodukt durch Tieftemperaturzerlegung von Luft
DE102007031765A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren zur Tieftemperaturzerlegung von Luft
EP2015013A2 (fr) 2007-07-07 2009-01-14 Linde Aktiengesellschaft Procédé et dispositif de production d'un gaz sous pression par séparation cryogénique d'air
EP2015012A2 (fr) 2007-07-07 2009-01-14 Linde Aktiengesellschaft Procédé pour la séparation cryogénique d'air
DE102009034979A1 (de) 2009-04-28 2010-11-04 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Erzeugung von gasförmigem Drucksauerstoff
EP2312248A1 (fr) 2009-10-07 2011-04-20 Linde Aktiengesellschaft Procédé et dispositif de production d'oxygène sous pression et de crypton/xénon
EP2458311A1 (fr) 2010-11-25 2012-05-30 Linde Aktiengesellschaft Procédé et dispositif de production d'un produit d'impression gazeux par décomposition à basse température d'air
DE102010052545A1 (de) 2010-11-25 2012-05-31 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft
DE102010052544A1 (de) 2010-11-25 2012-05-31 Linde Ag Verfahren zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft
EP2466236A1 (fr) 2010-11-25 2012-06-20 Linde Aktiengesellschaft Procédé de production d'un produit d'impression gazeux par décomposition à basse température de l'air
EP2520886A1 (fr) 2011-05-05 2012-11-07 Linde AG Procédé et dispositif de production d'un produit comprimé à oxygène gazeux par décomposition à basse température d'air
EP2568242A1 (fr) 2011-09-08 2013-03-13 Linde Aktiengesellschaft Procédé et dispositif destinés à la production d'acier
DE102011112909A1 (de) 2011-09-08 2013-03-14 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Gewinnung von Stahl
EP2600090A1 (fr) 2011-12-01 2013-06-05 Linde Aktiengesellschaft Procédé et dispositif destinés à la production d'oxygène sous pression par décomposition à basse température de l'air
DE102011121314A1 (de) 2011-12-16 2013-06-20 Linde Aktiengesellschaft Verfahren zur Erzeugung eines gasförmigen Sauerstoff-Druckprodukts durch Tieftemperaturzerlegung von Luft
DE102012017488A1 (de) 2012-09-04 2014-03-06 Linde Aktiengesellschaft Verfahren zur Erstellung einer Luftzerlegungsanlage, Luftzerlegungsanlage und zugehöriges Betriebsverfahren
EP2784420A1 (fr) 2013-03-26 2014-10-01 Linde Aktiengesellschaft Procédé de séparation de l'air et installation de séparation de l'air
WO2014154339A2 (fr) 2013-03-26 2014-10-02 Linde Aktiengesellschaft Procédé de séparation d'air et installation de séparation d'air
EP2801777A1 (fr) 2013-05-08 2014-11-12 Linde Aktiengesellschaft Installation de décomposition de l'air dotée d'un entraînement de compresseur principal
DE102013017590A1 (de) 2013-10-22 2014-01-02 Linde Aktiengesellschaft Verfahren zur Gewinnung eines Krypton und Xenon enthaltenden Fluids und hierfür eingerichtete Luftzerlegungsanlage
EP2963369A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif cryogeniques de separation d'air
EP2963367A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procédé et dispositif cryogéniques de séparation d'air avec consommation d'énergie variable
EP2963370A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif cryogeniques de separation d'air
EP2963371A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif de production d'un produit de gaz sous pression par decomposition a basse temperature d'air
WO2016005031A1 (fr) 2014-07-05 2016-01-14 Linde Aktiengesellschaft Procédé et dispositif de fractionnement de l'air à basse température à consommation d'énergie variable

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ES2237008T3 (es) 2005-07-16
EP1074805B1 (fr) 2005-01-19
US6332337B1 (en) 2001-12-25
DE19936816A1 (de) 2001-02-08
DE59911495D1 (de) 2005-02-24
ATE287518T1 (de) 2005-02-15

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