EP0422974A1 - Verfahren und Apparat zur Herstellung von Sauerstoffgas mit variablen Mengen durch Lufttrennung - Google Patents

Verfahren und Apparat zur Herstellung von Sauerstoffgas mit variablen Mengen durch Lufttrennung Download PDF

Info

Publication number
EP0422974A1
EP0422974A1 EP90402596A EP90402596A EP0422974A1 EP 0422974 A1 EP0422974 A1 EP 0422974A1 EP 90402596 A EP90402596 A EP 90402596A EP 90402596 A EP90402596 A EP 90402596A EP 0422974 A1 EP0422974 A1 EP 0422974A1
Authority
EP
European Patent Office
Prior art keywords
flow
air
oxygen
tank
variable
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
EP90402596A
Other languages
English (en)
French (fr)
Other versions
EP0422974B1 (de
Inventor
Bernard Darredeau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9386209&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0422974(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to AT90402596T priority Critical patent/ATE85696T1/de
Publication of EP0422974A1 publication Critical patent/EP0422974A1/de
Application granted granted Critical
Publication of EP0422974B1 publication Critical patent/EP0422974B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

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
    • F25J3/04006—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
    • F25J3/04151—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
    • F25J3/04248—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
    • 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
    • F25J3/04472—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
    • F25J3/04496—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist
    • F25J3/04503—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist by exchanging "cold" between at least two different cryogenic liquids, e.g. independently from the main heat exchange line of the air fractionation and/or by using external alternating storage systems
    • F25J3/04509—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist by exchanging "cold" between at least two different cryogenic liquids, e.g. independently from the main heat exchange line of the air fractionation and/or by using external alternating storage systems within the cold part of the air fractionation, i.e. exchanging "cold" within the fractionation and/or main heat exchange line
    • F25J3/04515—Simultaneously changing air feed and products output
    • 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/939—Partial feed stream expansion, air

Definitions

  • the present invention relates to the production of a variable flow rate of gaseous oxygen by air distillation. It relates firstly to a process of the type in which a variable quantity of oxygen is stored in liquid form in a first tank from which a variable flow of oxygen is taken and vaporized with, correspondingly, storage of another fluid in liquid form in a second reservoir.
  • the object of the invention is to provide a method which can be implemented more simply.
  • the subject of the invention is a method of the aforementioned type, characterized in that said fluid consists of a fraction of the air to be treated, in that a constant flow of liquid oxygen is sent into said first tank and a constant flow of liquefied air from said second tank into the distillation apparatus, and in that it is drawn from the first tank, depending on the oxygen demand gaseous, a variable flow of liquid oxygen which is vaporized by condensation of a corresponding variable flow of air to be treated.
  • the flow rates of each fluid introduced into the distillation apparatus and of each fluid withdrawn from this apparatus are kept constant, and the total air flow to be treated in the same way as the air flow condensed by oxygen vaporization.
  • the invention also relates to an installation intended for the implementation of such a method.
  • This installation of the type comprising a main air compressor, a double column distillation apparatus supplied by this compressor, a first storage tank for a variable quantity of liquid oxygen, a second storage tank for a variable quantity of another fluid in liquid form, and means for taking a variable flow of liquid oxygen in the first tank and vaporizing it and, approximately at the same time, adding said fluid in liquid form in the second tank, is characterized in that said vaporization means comprise a heat exchanger connected on the one hand to the outlet of the main compressor and on the other hand to the second tank, the lower part of the latter being also connected to the distillation apparatus, and in that the installation comprises means for passing a constant flow of liquid oxygen into the first tank, means for taking a variable flow of oxy liquid gene in this tank, means for varying the air flow rate sent to the heat exchanger, and means for send a constant flow of liquefied air from the second tank to the distillation apparatus.
  • FIGS. 1 and 2 schematically represent two embodiments of the installation according to the invention.
  • the installation shown in FIG. 1 essentially comprises a main air compressor 1 with variable flow rate, for example of the centrifugal type with movable blades, an adsorption purification device 2, a heat exchange line 3, a turbine 4 for keeping cold, an apparatus 5 for air distillation consisting of a double column itself comprising a medium pressure column 6 surmounted by a low pressure column 7 and a vaporizer-condenser 8, an auxiliary heat exchanger 9, a liquid oxygen tank 10 and a liquefied air tank 11.
  • This installation is intended to produce a variable flow of gaseous oxygen via a line 12, at a pressure slightly higher than atmospheric pressure.
  • the nominal flow of air to be treated, compressed to 6 bars by the compressor 1, cooled to room temperature and purified in the device 2, is divided into two flows each having a constant flow: - A first flow is cooled in passages 13 of the exchange line; a part has left this exchange line after partial cooling, expanded to 1 bar in the turbine 4 and blown into the low pressure column 7 near its dew point; the rest continues to cool down to the vicinity of its dew point at 6 bars, then is injected at the bottom of the medium pressure column 6 via a pipe 14. - A second flow is cooled to the vicinity of its dew point in passages 15 of the exchange line and then condensed in the exchanger 9 and stored in liquid form in the tank 11.
  • a constant flow of liquefied air is withdrawn from the bottom of this tank and is divided into a first constant flow at 6 bars sent to the medium pressure column via a line 16, and a second constant relaxed flow to 1 bar in an expansion valve 17 then injected into the low pressure column 7.
  • the vaporizer-condenser 8 vaporizes a constant flow of liquid oxygen in the bottom of the low pressure column by condensing a roughly equal flow of nitrogen from the top of the medium pressure column.
  • "Rich liquid” oxygen-enriched air
  • "lean liquid” nitrogen almost pure taken from the top of the medium pressure column and expanded to around 1 bar in an expansion valve 19 is injected at the top of the low pressure column.
  • a constant flow of liquid oxygen corresponding to 20% of the incoming air flow, passes, via a line 20, into the tank 10.
  • a constant flow identical liquid oxygen is withdrawn from the bottom of this tank, vaporized in the exchanger 9, heated in passages 21 of the exchange line and supplied to the production line 12.
  • a constant flow of impure nitrogen drawn off from the top of the low pressure column, is heated in passages 22 of the exchange line and evacuated as waste via a pipe 23.
  • Fig. 2 The installation shown in Fig. 2 is intended to supply gaseous oxygen under pressure. it differs from the previous one only in that a variable flow pump 24 is mounted in the pipe which connects the bottom of the tank 10 to the exchanger 9, and that an air blower 25 with movable blades is mounted in the pipe which conveys the fraction of the compressed air flow to the passages 15 of the heat exchange line.
  • the nominal operation of the installation is the same as above, except that the liquid oxygen withdrawn from the tank 10 is brought by the pump 24 to the desired pressure, then is vaporized under this pressure in the exchanger 9. To be able to carry out this vaporization, the corresponding air flow is boosted to a pressure somewhat higher than the oxygen vaporization pressure by the booster 25, condensed in the exchanger 9, then expanded to 6 bars in an expansion valve 26 before being stored in the tank 11.
  • each variation in the demand for gaseous oxygen in the pipe 12 requires a corresponding variation in the flow rate of the pump 24, a variation of the same order in the flow rate of air boosted by the booster 25, and an identical variation in the flow of air compressed by the main compressor 1.
  • the invention is particularly suitable for imparting flexibility to oxygen production installations with oxygen demands which vary frequently and rapidly.
  • the invention also applies to the case where, the oxygen demand always being greater than a given minimum value, a constant flow of gaseous oxygen equal to this minimum value is withdrawn directly from the bottom of the column low pressure 7 via a line 27, as indicated in phantom in Figs. 1 and 2, then reheated in the exchange line.
  • This variant makes it possible to reduce the capacity of the tanks 10 and 11.
  • constant productions of liquid oxygen and / or nitrogen gas and / or liquid nitrogen can be ensured simultaneously by the double column, via pipes 28 and / or 29 and / or 30, also as shown in dashed lines in FIGS. 1 and 2.

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)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP90402596A 1989-10-09 1990-09-20 Verfahren und Apparat zur Herstellung von Sauerstoffgas mit variablen Mengen durch Lufttrennung Revoked EP0422974B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90402596T ATE85696T1 (de) 1989-10-09 1990-09-20 Verfahren und apparat zur herstellung von sauerstoffgas mit variablen mengen durch lufttrennung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8913159 1989-10-09
FR8913159A FR2652887B1 (fr) 1989-10-09 1989-10-09 Procede et installation de production d'oxygene gazeux a debit variable par distillation d'air.

Publications (2)

Publication Number Publication Date
EP0422974A1 true EP0422974A1 (de) 1991-04-17
EP0422974B1 EP0422974B1 (de) 1993-02-10

Family

ID=9386209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90402596A Revoked EP0422974B1 (de) 1989-10-09 1990-09-20 Verfahren und Apparat zur Herstellung von Sauerstoffgas mit variablen Mengen durch Lufttrennung

Country Status (10)

Country Link
US (1) US5082482A (de)
EP (1) EP0422974B1 (de)
JP (1) JP3117702B2 (de)
AT (1) ATE85696T1 (de)
AU (1) AU625950B2 (de)
CA (1) CA2027071C (de)
DE (1) DE69000903T2 (de)
ES (1) ES2037535T3 (de)
FR (1) FR2652887B1 (de)
ZA (1) ZA908000B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556861A1 (de) * 1992-02-21 1993-08-25 Praxair Technology, Inc. Tieftemperaturluftzerlegung für die Herstellung von gasförmigem Sauerstoff
FR2751737A1 (fr) * 1996-07-25 1998-01-30 Air Liquide Procede et installation de production d'un gaz de l'air a debit variable
EP0952417A3 (de) * 1998-04-09 2000-04-12 The BOC Group plc Lufttrennung
FR2929697A1 (fr) * 2008-04-07 2009-10-09 Air Liquide Procede de production d'azote gazeux variable et d'oxygene gazeux variable par distillation d'air

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670278B1 (fr) * 1990-12-06 1993-01-22 Air Liquide Procede et installation de distillation d'air en regime variable de production d'oxygene gazeux.
GB2274407B (en) * 1993-01-22 1996-06-12 Boc Group Plc The separation of gas mixtures
FR2706195B1 (fr) * 1993-06-07 1995-07-28 Air Liquide Procédé et unité de fourniture d'un gaz sous pression à une installation consommatrice d'un constituant de l'air.
US5471843A (en) * 1993-06-18 1995-12-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and installation for the production of oxygen and/or nitrogen under pressure at variable flow rate
FR2706595B1 (fr) * 1993-06-18 1995-08-18 Air Liquide Procédé et installation de production d'oxygène et/ou d'azote sous pression à débit variable.
US5379598A (en) * 1993-08-23 1995-01-10 The Boc Group, Inc. Cryogenic rectification process and apparatus for vaporizing a pumped liquid product
FR2723184B1 (fr) * 1994-07-29 1996-09-06 Grenier Maurice Procede et installation de production d'oxygene gazeux sous pression a debit variable
US5666823A (en) 1996-01-31 1997-09-16 Air Products And Chemicals, Inc. High pressure combustion turbine and air separation system integration
GB9925097D0 (en) * 1999-10-22 1999-12-22 Boc Group Plc Air separation
US6253576B1 (en) * 1999-11-09 2001-07-03 Air Products And Chemicals, Inc. Process for the production of intermediate pressure oxygen
US6233970B1 (en) 1999-11-09 2001-05-22 Air Products And Chemicals, Inc. Process for delivery of oxygen at a variable rate
FR2842124B1 (fr) * 2002-07-09 2005-03-25 Air Liquide Procede de conduite d'une installation de production de gaz alimentee en electricite et cette installation de production
GB0219415D0 (en) * 2002-08-20 2002-09-25 Air Prod & Chem Process and apparatus for cryogenic separation process
US7228715B2 (en) * 2003-12-23 2007-06-12 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Cryogenic air separation process and apparatus
US20100192629A1 (en) * 2009-01-30 2010-08-05 Richard John Jibb Oxygen product production method
US20100192628A1 (en) * 2009-01-30 2010-08-05 Richard John Jibb Apparatus and air separation plant
US8726691B2 (en) * 2009-01-30 2014-05-20 Praxair Technology, Inc. Air separation apparatus and method
FR2949845B1 (fr) * 2009-09-09 2011-12-02 Air Liquide Procede d'operation d'au moins un appareil de separation d'air et d'une unite de combustion de combustibles carbones
FR2961586B1 (fr) * 2010-06-18 2014-02-14 Air Liquide Installation et procede de separation d'air par distillation cryogenique
CN103282732B (zh) * 2010-07-05 2016-08-03 乔治洛德方法研究和开发液化空气有限公司 通过低温蒸馏分离空气的装置和方法
JP6464399B2 (ja) * 2014-10-03 2019-02-06 神鋼エア・ウォーター・クライオプラント株式会社 空気分離装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250848B (de) * 1967-09-28 Linde Aktiengesellschaft, Wiesbaden Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft bei Sauerstoffabnahmeschwankungen
GB1178006A (en) * 1966-03-25 1970-01-14 Air Liquide Process for the production of a Gas in the Gaseous State under Pressure in Variable Quantities, and in the Liquid State
FR2335809A1 (fr) * 1975-12-19 1977-07-15 Linde Ag Procede de separation de l'air

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846853A (en) * 1954-06-01 1958-08-12 Union Carbide Corp High pressure scrubber liquefier in air separation systems
BE547614A (de) * 1955-05-31
USRE25193E (en) * 1957-08-16 1962-07-03 Method and apparatus for separating gaseous mixtures
GB864855A (en) * 1958-05-19 1961-04-12 Air Prod Inc Improvements in and relating to methods and apparatus for fractionating gaseous mixtures
US3174293A (en) * 1960-11-14 1965-03-23 Linde Eismasch Ag System for providing gas separation products at varying rates
DE1112997B (de) * 1960-08-13 1961-08-24 Linde Eismasch Ag Verfahren und Einrichtung zur Gaszerlegung durch Rektifikation bei tiefer Temperatur
GB2080929B (en) * 1980-07-22 1984-02-08 Air Prod & Chem Producing gaseous oxygen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250848B (de) * 1967-09-28 Linde Aktiengesellschaft, Wiesbaden Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft bei Sauerstoffabnahmeschwankungen
GB1178006A (en) * 1966-03-25 1970-01-14 Air Liquide Process for the production of a Gas in the Gaseous State under Pressure in Variable Quantities, and in the Liquid State
FR2335809A1 (fr) * 1975-12-19 1977-07-15 Linde Ag Procede de separation de l'air

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556861A1 (de) * 1992-02-21 1993-08-25 Praxair Technology, Inc. Tieftemperaturluftzerlegung für die Herstellung von gasförmigem Sauerstoff
FR2751737A1 (fr) * 1996-07-25 1998-01-30 Air Liquide Procede et installation de production d'un gaz de l'air a debit variable
WO1998004877A1 (fr) * 1996-07-25 1998-02-05 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procede et installation de production d'un gaz de l'air a debit variable
US6062044A (en) * 1996-07-25 2000-05-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and plant for producing an air gas with a variable flow rate
EP0952417A3 (de) * 1998-04-09 2000-04-12 The BOC Group plc Lufttrennung
US6170291B1 (en) 1998-04-09 2001-01-09 The Boc Group Plc Separation of air
FR2929697A1 (fr) * 2008-04-07 2009-10-09 Air Liquide Procede de production d'azote gazeux variable et d'oxygene gazeux variable par distillation d'air

Also Published As

Publication number Publication date
JPH03134481A (ja) 1991-06-07
AU6388290A (en) 1991-04-11
ATE85696T1 (de) 1993-02-15
EP0422974B1 (de) 1993-02-10
AU625950B2 (en) 1992-07-16
FR2652887B1 (fr) 1993-12-24
DE69000903T2 (de) 1993-07-01
FR2652887A1 (fr) 1991-04-12
DE69000903D1 (de) 1993-03-25
ZA908000B (en) 1991-08-28
CA2027071A1 (fr) 1991-04-10
JP3117702B2 (ja) 2000-12-18
CA2027071C (fr) 2000-07-18
ES2037535T3 (es) 1993-06-16
US5082482A (en) 1992-01-21

Similar Documents

Publication Publication Date Title
EP0422974B1 (de) Verfahren und Apparat zur Herstellung von Sauerstoffgas mit variablen Mengen durch Lufttrennung
EP0504029B1 (de) Verfahren zur Herstellung von gasförmigem Sauerstoff unter Druck
EP0576314B1 (de) Verfahren und Apparat zur Herstelling von gasförmigem Sauerstoff unter Druck
EP1447634B1 (de) Verfahren und Vorrichtung zur Erzeugung von mindestens einem gasförmigen unter hohem Druck stehenden Produktstrom, wie Sauerstoff, Stickstoff oder Argon, durch Tieftemperaturzerlegung von Luft
EP0689019B1 (de) Verfahren und Einrichtung zur Herstellung von gasförmigem Drucksauerstoff
EP0848220B1 (de) Verfahren und Anlage zur Lieferung eines Luftgases in variablen Mengen
EP0694746B1 (de) Verfahren zur Herstellung von Druckgas mit variabelen Mengen
EP2122282A2 (de) Verfahren und vorrichtung zur trennung einer mischung aus kohlenmonoxid, methan, wasserstoff und optional stickstoff durch kryogene destillation
EP0618415B1 (de) Verfahren und Vorrichtung zur Herstellung von gasförmigem Sauerstoff und/oder gasförmigem Stickstoff unter Druck durch Zerlegung von Luft
FR2681415A1 (fr) Procede et installation de production d'oxygene gazeux sous haute pression par distillation d'air.
EP0914584B1 (de) Verfahren und einrichtung zur herstellung eines luftgases mit variablen mengen
EP1711765B1 (de) Kryogenes destillationsverfahren und anlage zur lufttrennung
EP0677713B1 (de) Verfahren und Vorrichtung zur Herstellung von Sauerstoff durch Rektifikation von Luft
FR2697620A1 (fr) Procédé et installation de production d'azote gazeux à débit variable.
CA2125944C (fr) Procede et installation de production d'oxygene et/ou d'azote sous pression a debit variable
FR2929697A1 (fr) Procede de production d'azote gazeux variable et d'oxygene gazeux variable par distillation d'air
EP0595673A1 (de) Verfahren und Anlage zur Herstellung von Stickstoff und Sauerstoff
FR2915271A1 (fr) Procede et appareil de separation des gaz de l'air par distillation cryogenique
WO2003006902A1 (fr) Procede et installation de production de vapeur d'eau et de distillation d'air
FR2864213A1 (fr) Procede et installation de production sous forme gazeuse et sous haute pression d'au moins un fluide choisi parmi l'oxygene, l'argon et l'azote par distillation cryogenique de l'air
JP2004197981A (ja) 空気分離装置及び該装置を用いた製品ガス製造方法
FR2827186A1 (fr) Procede et installation de distillation d'air et de production de vapeur d'eau
FR2685460A1 (fr) Procede et installation de production d'oxygene gazeux sous pression par distillation d'air.
FR2811712A1 (fr) Installation de distillation d'air et de production d'electricite et procede correspondant
FR2947042A1 (fr) Echangeur principal d'un appareil de separation d'air et procede de refroidissement d'air utilisant un tel echangeur

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19900924

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT NL SE

17Q First examination report despatched

Effective date: 19920409

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19930210

REF Corresponds to:

Ref document number: 85696

Country of ref document: AT

Date of ref document: 19930215

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69000903

Country of ref document: DE

Date of ref document: 19930325

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930305

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2037535

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: LINDE AKTIENGESELLSCHAFT

Effective date: 19931110

NLR1 Nl: opposition has been filed with the epo

Opponent name: LINDE AG.

EAL Se: european patent in force in sweden

Ref document number: 90402596.2

APCC Communication from the board of appeal sent

Free format text: ORIGINAL CODE: EPIDOS OBAPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19990807

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19990816

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19990818

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19990819

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990823

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19990825

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19990907

Year of fee payment: 10

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19990930

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 990930

NLR2 Nl: decision of opposition
APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO