EP0567360A1 - Verfahren und Apparat zum Überführen einer Flüssigkeit - Google Patents

Verfahren und Apparat zum Überführen einer Flüssigkeit Download PDF

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Publication number
EP0567360A1
EP0567360A1 EP19930400745 EP93400745A EP0567360A1 EP 0567360 A1 EP0567360 A1 EP 0567360A1 EP 19930400745 EP19930400745 EP 19930400745 EP 93400745 A EP93400745 A EP 93400745A EP 0567360 A1 EP0567360 A1 EP 0567360A1
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EP
European Patent Office
Prior art keywords
column
liquid
pressure
point
gas
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
EP19930400745
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English (en)
French (fr)
Other versions
EP0567360B2 (de
EP0567360B1 (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.)
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
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Publication date
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Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP0567360A1 publication Critical patent/EP0567360A1/de
Application granted granted Critical
Publication of EP0567360B1 publication Critical patent/EP0567360B1/de
Publication of EP0567360B2 publication Critical patent/EP0567360B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • 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
    • F25J3/0423—Subcooling of liquid process streams
    • 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
    • F25J3/04763—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
    • F25J3/04793—Rectification, e.g. columns; Reboiler-condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/0509—"Dewar" vessels
    • 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
    • F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
    • F25J2235/06—Lifting of liquids by gas lift, e.g. "Mammutpumpe"
    • 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
    • F25J2245/40—Processes or apparatus involving steps for recycling of process streams the recycled stream 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
    • 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
    • Y10S62/912—External refrigeration system
    • Y10S62/913—Liquified gas

Definitions

  • the present invention relates to a process for transferring a liquid, via a riser fitted with an expansion valve, from a first distillation column operating at a first pressure, typically relatively high, to equipment, in particular to a second distillation column, operating at a second pressure, typically relatively low, lower than the first pressure.
  • Apparatuses for the separation of gases from air by cryogenic distillation most often use the conventional double column scheme.
  • the liquids produced in the tank oxygen-rich liquid
  • in the intermediate part lean liquid
  • liquid nitrogen liquid nitrogen
  • the medium pressure column or MP column
  • the low pressure column is placed above the medium pressure column. Liquids must therefore be sent to a point higher than the point where they are taken.
  • the pressure difference between the medium pressure column and the low pressure column is greater than the hydrostatic pressure of the liquid column between the sampling point in the MP column and the arrival point of the LP column.
  • the invention aims to allow, in a simple and effective manner, a safe transfer of liquids, without the use of a pump.
  • the process according to the invention is characterized in that a lightening gas available at a pressure higher than the pressure created by a column is injected into the riser, downstream of the expansion valve. of said liquid between the gas injection point and the point of introduction of the liquid into said equipment.
  • the subject of the invention is a process for transferring a liquid, via a rising pipe fitted with an expansion valve, from a first distillation column operating at a first pressure to equipment, in particular a second distillation column, operating at a second pressure, lower than the first pressure, characterized in that the liquid is sub-cooled before its expansion, with the exception of a minority fraction of this liquid, so as to produce a controlled amount of flash gas serving as liquid lightening gas.
  • the invention also relates to a distillation installation intended for the implementation of such a process.
  • this installation of the type comprising a first distillation column operating at a first pressure, equipment, in particular a second distillation column, operating at a second pressure, lower than the first pressure, and a riser pipe equipped with '' an expansion valve and connecting a point of withdrawal of liquid from the first column to a point of introduction of liquid into said equipment, is characterized in that it comprises means for injecting into the riser, downstream of the expansion valve, a lightening gas available at a pressure greater than the pressure created by a column of said liquid between the point of injection of the gas and the point of introduction of the liquid into said equipment.
  • the installation according to the invention of the type comprising a first distillation column operating at a relatively high pressure, equipment, in particular a second distillation column, operating at a relatively low pressure, and a riser fitted an expansion valve and connecting a point of withdrawal of liquid from the first column to a point of introduction of liquid from said equipment, is characterized in that the riser pipe passes through a sub-cooler upstream of the expansion valve and is provided with a bypass of this subcooler.
  • the air distillation installation represented in FIG. 1 essentially comprises a double distillation column 1.
  • This comprises a medium pressure column 2 surmounted by a low pressure column 3.
  • a vaporizer-condenser 4 puts in relation to heat exchange the head vapor of column 2, consisting of practically pure nitrogen, and the tank liquid of column 3, consisting of oxygen at a determined purity.
  • Lean liquid (impure nitrogen) is drawn off at an intermediate point in column 2 via a pipe 11 fitted with an expansion valve (not shown) and, after sub-cooling and expansion, is introduced at an intermediate point of column 3.
  • Almost pure liquid nitrogen is drawn off at the head of column 3 via a line 12 fitted with an expansion valve 13, sub-cooled in a sub-cooler 14 upstream of this expansion valve, expanded in the latter and introduced at the top of column 3.
  • FIG. 1 also shows pipes 15 for the production of gaseous oxygen starting from the bottom of the column 3, 16 for producing pure nitrogen, starting from the top of this column 3.17 of air blowing in an intermediate point in column 3, and 18 for discharging residual gas (impure nitrogen) from the upper part of this column.
  • an air line 19 is pricked on the supply line 5 and is divided into two branches 20, 21. Each of these branches is equipped with an expansion valve 22, 23 and joins the lines 6 and 9 respectively just downstream of their expansion valves 7 and 10.
  • a gas line 24 equipped with an expansion valve 25 starts from the top of the column 2 and joins the line i-te 12 just downstream of the expansion valve 13.
  • Another gas line 26, equipped with an expansion valve (not shown) starts from a location of the column 2 near the point of withdrawal of the lean liquid (line 11) and joins this line 11 just downstream of the expansion valve thereof.
  • the air bubbles lighten the rich liquid and reduce the pressure necessary to bring it back up to column 2.
  • a low air flow conveyed by the pipe 19, 21 is expanded in the expansion valve 23 and injected into the rich liquid which has just been expanded in the expansion valve 10.
  • the air flow total deflected by line 19 is low, typically less than 1% of the air flow entering the installation.
  • the corresponding lightening gas in line 24 must be practically pure nitrogen.
  • the compositions of the rich liquid and of the lean liquid are not critical, so that the corresponding lightening gases may have compositions slightly different from these liquids, provided that they do not pollute them, all the more that the flow of these gases is very low.
  • the main expansion valves 7, 10 and 13 are placed as low as possible to guarantee their supply with clean liquid, and gas bubbles are introduced just downstream of these expansion valves to assist propulsion towards the top of the liquids in question. More precisely, the pressure of the lightening gases must be sufficient to overcome the height of liquid which overcomes the point of injection of the gas, and this pressure is obtained, in the example shown, thanks to the fact that each gas, which is available at the pressure of column 3, is injected above the point of withdrawal of the associated liquid.
  • FIGS 2 and 3 illustrate, in the case of the rise of liquid nitrogen via line 12, two variants for obtaining the lightening gas. In these two variants, the pipe 24 and the expansion valve 25 are eliminated.
  • a controlled minority flow of liquid nitrogen conveyed by the pipe 12 by-passes the sub-cooler 14 via a by-pass pipe 2 equipped, preferably at its lowest point, with a expansion valve 25A and terminating downstream of the expansion valve 13.
  • the liquid thus derived, not being sub-cooled, produces by expansion, a relatively large and adjustable quantity of flash gas, which serves as lightening gas.
  • the expansion valve 25A is omitted, and there is provided, in line 12, a three-way valve 27 having an inlet connected to line 12 upstream of the subcooler 14, an outlet connected at the input of this subcooler and another output connected to the 24A bypass line.
  • this pipe 24A ends upstream of the expansion valve 13.
  • FIGS. 2 and 3 although based on the same idea as that of FIG. 1, are less effective in the sense that they make it possible to lighten the rising liquids while limiting the production of gases to a minimum. flash, which is unfavorable to distillation, but that they do not allow the restarting of the installation in the event of accidental blockage of the risers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Gas Separation By Absorption (AREA)
EP19930400745 1992-03-24 1993-03-23 Verfahren und Apparat zum Überführen einer Flüssigkeit Expired - Lifetime EP0567360B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9203500A FR2689223B1 (fr) 1992-03-24 1992-03-24 Procede et installation de transfert de fluide en provenance d'une colonne de distillation, notamment d'air.
FR9203500 1992-03-24

Publications (3)

Publication Number Publication Date
EP0567360A1 true EP0567360A1 (de) 1993-10-27
EP0567360B1 EP0567360B1 (de) 1996-05-15
EP0567360B2 EP0567360B2 (de) 2002-06-12

Family

ID=9427993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930400745 Expired - Lifetime EP0567360B2 (de) 1992-03-24 1993-03-23 Verfahren und Apparat zum Überführen einer Flüssigkeit

Country Status (8)

Country Link
US (1) US5337569A (de)
EP (1) EP0567360B2 (de)
JP (1) JPH0618162A (de)
CN (1) CN1078946C (de)
CA (1) CA2092139C (de)
DE (1) DE69302619T2 (de)
ES (1) ES2086895T5 (de)
FR (1) FR2689223B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052465A1 (de) * 1999-05-12 2000-11-15 Linde Aktiengesellschaft Verfahren und Vorrichung zur Tieftemperaturzerlegung von Luft
FR2853406A1 (fr) * 2003-04-01 2004-10-08 Air Liquide Procede et appareil de separation d'air par distillation cryogenique
FR2853405A1 (fr) * 2003-04-01 2004-10-08 Air Liquide Procede et installation de separation d'air par distillation cryogenique

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FR2753638B1 (fr) * 1996-09-25 1998-10-30 Procede pour l'alimentation d'une unite consommatrice d'un gaz
GB9705889D0 (en) * 1997-03-21 1997-05-07 Boc Group Plc Heat exchange method and apparatus
CN1073883C (zh) * 1998-05-15 2001-10-31 中国石油化工总公司 一种采用管壁补气与排气实现循环流化床多段化操作的方法及其装置
DE19933558C5 (de) * 1999-07-16 2010-04-15 Linde Ag Dreisäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft
EP1338856A3 (de) * 2002-01-31 2003-09-10 L'AIR LIQUIDE, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Verfahren und Vorrichtung zur Zerlegung von Luft durch Tieftemperaturdestillation
US6568208B1 (en) * 2002-05-03 2003-05-27 Air Products And Chemicals, Inc. System and method for introducing low pressure reflux to a high pressure column without a pump
DE102010011803A1 (de) * 2010-03-18 2011-09-22 Linde Aktiengesellschaft Verfahren zum Betreiben einer 2-Phasen-Steigleitung im Teillastbetrieb
CN102734591B (zh) * 2012-07-12 2015-08-19 杭州杭氧股份有限公司 一种低温液体节流阀输送液体的自动提升装置
US20140165649A1 (en) * 2012-12-18 2014-06-19 Air Liquide Process & Construction, Inc. Purification of inert gases to remove trace impurities
US20140165648A1 (en) * 2012-12-18 2014-06-19 Air Liquide Process & Construction, Inc. Purification of inert gases to remove trace impurities
CN107998681A (zh) * 2017-12-29 2018-05-08 上海联风能源科技有限公司 一种低压差下将液体输送到高位的方法及其装置

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FR2320512A1 (fr) * 1975-08-08 1977-03-04 Linde Ag Procede et installation de rectification d'un melange de gaz a bas point d'ebullition

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FR2650379B1 (fr) † 1989-07-28 1991-10-18 Air Liquide Appareil de vaporisation-condensation pour double colonne de distillation d'air, et installation de distillation d'air comportant un tel appareil
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059440A (en) * 1960-01-19 1962-10-23 John J Loporto Fluid transfer arrangement
FR2320512A1 (fr) * 1975-08-08 1977-03-04 Linde Ag Procede et installation de rectification d'un melange de gaz a bas point d'ebullition

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Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052465A1 (de) * 1999-05-12 2000-11-15 Linde Aktiengesellschaft Verfahren und Vorrichung zur Tieftemperaturzerlegung von Luft
FR2853406A1 (fr) * 2003-04-01 2004-10-08 Air Liquide Procede et appareil de separation d'air par distillation cryogenique
FR2853405A1 (fr) * 2003-04-01 2004-10-08 Air Liquide Procede et installation de separation d'air par distillation cryogenique

Also Published As

Publication number Publication date
FR2689223B1 (fr) 1994-05-06
EP0567360B2 (de) 2002-06-12
CN1078946C (zh) 2002-02-06
CN1076775A (zh) 1993-09-29
CA2092139C (fr) 2004-05-04
ES2086895T3 (es) 1996-07-01
JPH0618162A (ja) 1994-01-25
EP0567360B1 (de) 1996-05-15
ES2086895T5 (es) 2002-12-16
DE69302619T2 (de) 1996-09-26
FR2689223A1 (fr) 1993-10-01
US5337569A (en) 1994-08-16
DE69302619D1 (de) 1996-06-20
CA2092139A1 (fr) 1993-09-25

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