EP0567360B2 - Verfahren und Apparat zum Überführen einer Flüssigkeit - Google Patents

Verfahren und Apparat zum Überführen einer Flüssigkeit Download PDF

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Publication number
EP0567360B2
EP0567360B2 EP19930400745 EP93400745A EP0567360B2 EP 0567360 B2 EP0567360 B2 EP 0567360B2 EP 19930400745 EP19930400745 EP 19930400745 EP 93400745 A EP93400745 A EP 93400745A EP 0567360 B2 EP0567360 B2 EP 0567360B2
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EP
European Patent Office
Prior art keywords
column
pressure
liquid
point
expansion valve
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Expired - Lifetime
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EP19930400745
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English (en)
French (fr)
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EP0567360A1 (de
EP0567360B1 (de
Inventor
Bernard Darredeau
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LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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Air Liquide SA
LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
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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 method of transfer of a liquid, via a riser fitted an expansion valve, a first column of distillation operating at a first press, typically relatively high, to equipment, especially to a second distillation column, operating at a second press, typically relatively low, less than the first press.
  • Apparatuses for the separation of gases from air by distillation cryogenic most often use the scheme classic double column. Liquids produced in tank (liquid rich in oxygen), in the middle (lean liquid) and at the top (liquid nitrogen) of the column medium pressure (or MP column), are sent at an intermediate point or at the top of the column low pressure (or BP column). Most of the time, for economic reasons, the low pressure column is placed above the medium pressure column. It is therefore necessary to send liquids to a point located higher than the point where they are taken. Conventionally, the pressure difference between the average column pressure and the low pressure column is higher at hydrostatic pressure of the liquid column between the sampling point in the column MP and the end point of the BP column.
  • the invention aims to allow, in a simple way and efficient, safe transfer of liquids, without use of a pump.
  • the method according to the invention is characterized by injecting it into the riser, downstream of the expansion valve, a lightening gas available at a pressure higher than the pressure created by a column of said liquid between the injection point of the gas and the point of introduction of the liquid into said equipment.
  • the invention relates to a process for transferring a liquid, via a pipe rising fitted with an expansion valve, a first distillation column operating at a first pressure on equipment, especially one second distillation column, operating at a second pressure, less than first pressure, characterized in that the liquid is sub-cooled before its expansion, at except for a minority fraction of this liquid, so as to produce a controlled amount of gas from flash, this flash gas is injected downstream of the expansion valve and serves as a lightening gas for the liquid.
  • this installation also relates to an installation distillation intended for the implementation of such a process.
  • this installation of type comprising a first distillation column operating at first pressure, equipment, in particular a second distillation column, operating at a second press, less than the first pressure, and a riser fitted with a expansion valve and connecting a liquid withdrawal point from the first column to an introduction point of liquid in said equipment, is characterized in that that it includes means of injection into the pipe rising, downstream of the expansion valve, by a lightening gas available at higher pressure at the pressure created by a column of said liquid between the gas injection point and the point of introduction of the liquid in said equipment.
  • the invention relates to an installation according to claim 10.
  • the air distillation installation shown in the figure 1 essentially comprises a double column distillation 1.
  • This includes a medium column pressure 2 surmounted by a low pressure column 3.
  • a vaporizer-condenser 4 puts in exchange relation thermal steam at the top of column 2, consisting practically pure nitrogen, and the tank liquid column 3, consisting of oxygen at a determined purity.
  • Porture liquid (impure nitrogen) is drawn off in one intermediate point of column 2 via line 11 equipped with an expansion valve (not shown) and, after sub-cooling and expansion, is introduced in an intermediate point in column 3. Liquid nitrogen practically pure is withdrawn at the head of column 3 via a pipe 12 fitted with an expansion valve 13, sub-cooled in a sub-cooler 14 upstream of this expansion valve, relaxed in the latter and introduced at the top of column 3.
  • an air line 19 is tapped into supply line 5 and splits into two branches 20, 21.
  • Each of these branches is equipped with an expansion valve 22, 23 and joined respectively lines 6 and 9 just downstream of their expansion valves 7 and 10.
  • a pipe 24 gas equipped with a relief valve 25 starts from the top from column 2 and joins line 12 just by downstream of the expansion valve 13.
  • Another line for gas 26, fitted with an expansion valve (not shown), starts from a location in column 2 next to the point of withdrawal of the poor liquid (line 11) and joined this pipe 11 just downstream of the expansion valve of it.
  • a low flow of conveyed air at the supply pressure of column 2, through the pipe 19, 20, is expanded in the expansion valve 22 and injected into the newly expanded rich liquid in the expansion valve 7.
  • the air bubbles lighten the rich liquid and reduce the pressure required for bring up to column 2.
  • a low air flow conveyed by line 19, 21 is relaxed in the expansion valve 23 and injected into the rich liquid which has just been expanded in the expansion valve 10.
  • the total diverted air flow via line 19 is weak, typically less than 1 % of the air flow entering the installation.
  • the lightening gas corresponding in line 24 must be nitrogen practically pure.
  • the compositions of the liquid rich and poor liquid are not critical, so that the corresponding lightening gases can have somewhat different compositions from these liquids, provided that they do not pollute them, all the more more than the flow of these gases is very low.
  • the main expansion valves 7, 10 and 13 are placed as low as possible to guarantee feeding them with frank liquid, and we introduce gas bubbles just downstream of these valves trigger to assist the upward propulsion of liquids in question. More specifically, the pressure of lightening gas must be sufficient to overcome the height of liquid above the injection point of the gas, and this pressure is obtained, in the example shown, thanks to the fact that every 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 ascent liquid nitrogen via line 12, two variants obtaining lightening gas. In these two variants, the pipe 24 and the expansion valve 25 are eliminated.
  • a minority flow control of liquid nitrogen conveyed by line 12 bypass the sub-cooler 14 via a bypass pipe 24A fitted, preferably at its lowest point, an expansion valve 25A and ending downstream of the expansion valve 13.
  • the expansion valve 25A is deleted, and there is provision, in line 12, a three-way valve 27 having an input connected to the line 12 upstream of the sub-cooler 14, an outlet connected to the input of this subcooler and another output connected to the 24A bypass line.
  • this pipe 24A ends upstream of the expansion valve 13.

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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)
  • Gas Separation By Absorption (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (10)

  1. Verfahren zum Überführen einer Flüssigkeit über eine mit einem Druckminderventil (7, 10, 13) ausgestattete Steigleitung (6, 9, 11, 12) von einer ersten Destillationskolonne (2), die bei einem ersten Druck arbeitet, zu einer Einrichtung (3), insbesondere einer zweiten Destillationskolonne, die bei einem tieferen Druck als dem ersten Druck arbeitet, dadurch gekennzeichnet, dass man in die Steigleitung stromab von dem Druckminderventil ein Verdünnungsgas einleitet, das bei einem Druck vorliegt, der höher ist als der von einer Flüssigkeitskolonne zwischen dem Einleitungspunkt des Gases und dem Einführungspunkt der Flüssigkeit in die Einrichtung (3) erzeugte Druck.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Verdichtungsgas bei dem Druck der ersten Destillationskolonne (2) vorliegt und in die Flüssigkeit in der Steigleitung oberhalb des Entnahmepunktes der Flüssigkeit eingeleitet wird.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass man als Verdünnungsgas ein an einem Punkt der ersten Kolonne entnommenes Gas verwendet, das derart ausgewählt wird, dass die Zusammensetzung der überführten Flüssigkeit nicht wesentlich verändert wird.
  4. Verfahren nach Anspruch 2 zum Überführen der Wannenflüssigkeit von einer Mitteldruck-Kolonne (2) einer doppelten Luftdestillationskolonne (1) zu einem Zwischenpunkt einer Niederdruck-Kolonne (3), welche über die Mitteldruck-Kolonne hinausragt, und/oder zu dem Kopfkondensator einer mit der Niederdruck-Kolonne (3) verbundenen Sauerstoff/Argon-Trennkolonne, dadurch gekennzeichnet, dass man als Verdünnungsgas einen geringen Durchfluss an Zufuhrluft der doppelten Kolonne (1) verwendet.
  5. Verfahren zum Überführen einer Flüssigkeit über eine mit einem Druckminderventil (7, 10, 13) ausgestattete Steigleitung (6, 9, 11, 12) von einer ersten Destillationskolonne (2), die bei einem ersten Druck arbeitet, zu einer Einrichtung (3), insbesondere einer zweiten Destillationskolonne, die bei einem zweiten tieferen Druck als dem ersten Druck arbeitet, dadurch gekennzeichnet, dass man die Flüssigkeit vor ihrer Entspannung mit Ausnahme eines kleinen Bruchteils der Flüssigkeit derart unterkühlt, dass eine kontrollierte Menge an Flash-Gas erzeugt wird, wobei das Flash-Gas stromab von dem Druckminderventil (7, 10, 13) eingeleitet wird und als Verdünnungsgas der Flüssigkeit dient.
  6. Destillationsanlage mit einer ersten Destillationskolonne (2), die bei einem ersten Druck arbeitet, einer Einrichtung (3), insbesondere einer zweiten Destillationskolonne, die bei einem zweiten tieferen als dem ersten Druck arbeitet, und einer mit einem Druckminderventil (7, 10, 13) ausgestatteten Steigleitung (6, 9, 11, 12), die einen Entnahmepunkt der Flüssigkeit der ersten Kolonne (2) mit einem Einführungspunkt der Flüssigkeit in die Einrichtung (3) verbindet, der sich oberhalb des Entnahmepunktes befindet, dadurch gekennzeichnet, dass sie stromab von dem Druckminderventil in der Steigleitung eine Einrichtung (19 bis 26) zum Einleiten eines Verdünnungsgases aufweist, das bei einem Druck vorliegt, der höher ist als der von einer Flüssigkeitskolonne zwischen dem Einleitungspunkt des Gases und dem Einführungspunkt der Flüssigkeit in die Einrichtung (3) erzeugte Druck.
  7. Anlage nach Anspruch 6, dadurch gekennzeichnet, dass das Verdünnungsgas in der ersten Kolonne (2) oder an deren Eingang abgezweigt wird und dass die Einleit-Einrichtung (19 bis 26) in die Steigleitung (6, 9, 11, 12) in einer Höhe oberhalb des Ausgangspunktes der Leitung mündet.
  8. Anlage nach Anspruch 7, dadurch gekennzeichnet, dass die Einleit-Einrichtung eine mit einem Druckminderventil (25) ausgestattete Gasleitung (11, 24) aufweist, die von einem zu dem Entnahmepunkt der Flüssigkeit benachbarten Punkt der ersten Kolonne (2) aus verläuft.
  9. Anlage nach Anspruch 7, bei welcher die erste Kolonne (2) die Mitteldruck-Kolonne (2) einer doppelten Luftdestillationskolonne (1) ist und die Einrichtung (3) die Niederdruck-Kolonne (3) ist, die über die Mitteldruck-Kolonne der doppelten Kolonne und/oder den Kopfkondensator einer mit der Niederdruck-Kolonne (3) verbundenen Sauerstoff/Argon-Trennkolonne hinausragt, dadurch gekennzeichnet, dass die Einleit-Einrichtung eine mit einem Druckminderventil (22, 23) ausgestattete Leitung (19 bis 21) aufweist, die von der Ankunftsleitung (5) der zu destillierenden Luft oder von der Wanne der Mitteldruck-Kolonne (2) aus verläuft.
  10. Destillationsanlage mit einer ersten Destillationskolonne (2), die bei einem relativ hohen Druck arbeitet, einer Einrichtung (3), insbesondere einer zweiten Destillationskolonne, die bei einem relativ tiefen Druck arbeitet, und einer mit einem Druckminderventil (7, 10, 13) ausgestatteten Steigleitung (6, 9, 11, 12), die einen Entnahmepunkt der Flüssigkeit der ersten Kolonne (2) mit einem Einführungspunkt der Flüssigkeit in die Einrichtung (3) verbindet, dadurch gekennzeichnet, dass die Steigleitung (6, 12) eine Unterkühl-Einrichtung (8, 14) stromauf von dem Druckminderventil (7, 13) durchläuft und mit einer Umgehungsleitung (24A) für die Unterkühl-Einrichtung und das Ventil (13) versehen ist, wobei diese Umgehungsleitung mit einem Druckminderventil (25A) ausgerüstet ist.
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 EP0567360A1 (de) 1993-10-27
EP0567360B1 EP0567360B1 (de) 1996-05-15
EP0567360B2 true EP0567360B2 (de) 2002-06-12

Family

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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)

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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
DE19921949A1 (de) * 1999-05-12 2000-11-16 Linde Ag Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft
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
FR2853405A1 (fr) * 2003-04-01 2004-10-08 Air Liquide Procede et installation de separation d'air par distillation cryogenique
FR2853406A1 (fr) * 2003-04-01 2004-10-08 Air Liquide Procede et appareil de separation d'air par distillation cryogenique
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
US20140165648A1 (en) * 2012-12-18 2014-06-19 Air Liquide Process & Construction, Inc. Purification of inert gases to remove trace impurities
US20140165649A1 (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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EP0567360A1 (de) 1993-10-27
DE69302619D1 (de) 1996-06-20
US5337569A (en) 1994-08-16
FR2689223A1 (fr) 1993-10-01
CN1076775A (zh) 1993-09-29
CN1078946C (zh) 2002-02-06
FR2689223B1 (fr) 1994-05-06
DE69302619T2 (de) 1996-09-26
ES2086895T5 (es) 2002-12-16
CA2092139A1 (fr) 1993-09-25
CA2092139C (fr) 2004-05-04
JPH0618162A (ja) 1994-01-25
ES2086895T3 (es) 1996-07-01
EP0567360B1 (de) 1996-05-15

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