EP1966554B1 - Lufttrennvorrichtung durch kryogenische destillation - Google Patents

Lufttrennvorrichtung durch kryogenische destillation Download PDF

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Publication number
EP1966554B1
EP1966554B1 EP06842175.9A EP06842175A EP1966554B1 EP 1966554 B1 EP1966554 B1 EP 1966554B1 EP 06842175 A EP06842175 A EP 06842175A EP 1966554 B1 EP1966554 B1 EP 1966554B1
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EP
European Patent Office
Prior art keywords
line
column
section
exchange
exchange line
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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.)
Active
Application number
EP06842175.9A
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English (en)
French (fr)
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EP1966554A2 (de
Inventor
Benoit Davidian
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
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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
Priority to PL06842175T priority Critical patent/PL1966554T3/pl
Publication of EP1966554A2 publication Critical patent/EP1966554A2/de
Application granted granted Critical
Publication of EP1966554B1 publication Critical patent/EP1966554B1/de
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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
    • F25J3/04624—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 integrated mass and heat exchange, so-called non-adiabatic rectification, e.g. dephlegmator, reflux exchanger
    • 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
    • F25J3/04254—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using the cold stored in external cryogenic fluids
    • 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
    • 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
    • F25J3/04296—Claude expansion, i.e. expanded into the main or 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
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
    • 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
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger
    • F25J5/007—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative heat exchanger combined with mass exchange, i.e. in a so-called dephlegmator
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/02—Processes or apparatus using separation by rectification in a single pressure main column system
    • 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
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/42—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/44—Particular materials used, e.g. copper, steel or alloys thereof or surface treatments used, e.g. enhanced surface

Definitions

  • the cold box is higher, but much less wide because the exchanger is above the column, which results in a significant gain.
  • a compressed air flow 1 is purified in a purification unit (not shown) and sent to the hot end of an exchange line 3.
  • the exchange line comprises a conventional heat exchange section 3A and a section 3B of deflegmation. The two sections are contiguous and the exchange line is a plate and finned heat exchanger.
  • the air 1 cools in the exchange line to the cold end of the section 3A, then leaves the exchange line to be sent to the base of a single distillation column 7.
  • the column 7 contains packings structured or trays 9.
  • the air separates into an oxygen-enriched flow 11 and a nitrogen-enriched flow.
  • the oxygen-enriched flow 11 is withdrawn in liquid form from column 7 and sent to the cold end of section 3B.
  • the nitrogen-enriched gas exits directly from the top of the column in the passages of section 3B.
  • the exchange line 3 has the same width as the head of the column 7 and is welded to the ferrule of the column (by a round-square or round-rectangular adapter piece).
  • the frigories necessary for distillation are provided by liquid nitrogen liquor 13 from storage in a manner known as described in US Pat. EP-A-0452177 .
  • an air turbine 5 or vaporized rich liquid may be provided.
  • Section 3B includes two nitrogen passages for a rich liquid passage.
  • the rich liquid vaporizes entirely in this section 3B of the exchange line 3 so that it is completely converted into a gas 15.
  • Section 3A of the exchange line is composed of the classic main exchange line.
  • the nitrogen gas 17 and the vaporized rich liquid 15 heat up against the incoming air 1.
  • the exchange line 3 is preferably copper or aluminum and the column 7 will be stainless steel. If the exchange line is aluminum and the stainless steel column, provide a joint junction (s) between the two. Otherwise the exchange line 3 and the column 7 may be aluminum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Claims (6)

  1. Gerät zur Trennung von Luft durch kryogene Destillation zur Herstellung von Stickstoff, umfassend:
    a) eine Austauschleitung (3), die ein Austauscher mit Platten und gelöteten Rippen ist,
    b) eine einfache Destillationskolonne (7), die Platten und / oder strukturierte Auskleidungen enthält,
    c) eine Leitung (1) zum Leiten von komprimierter und gereinigter Luft an die Austauschleitung
    d) eine Leitung zum Zuführen komprimierter, gereinigter und gekühlter Luft von der Austauschleitung zu der Destillationskolonne,
    e) eine Leitung (11) zum Absaugen einer mit Sauerstoff angereicherten Flüssigkeit von der Kolonne und zum Leiten derselben zu der Austauschleitung, und wobei die Austauschleitung zwei zusammenhängende Abschnitte umfasst, die ein Dephlegmierungsabschnitt (3B) und ein Wärmeaustauschabschnitt (3A) sind; wobei der Dephlegmierungsabschnitt mit der Kolonne und mit der Leitung für mit Sauerstoff angereicherter Flüssigkeit verbunden ist, und wobei der Wärmeaustauschabschnitt mit der Luftleitung und dem Dephlegmierungsabschnitt verbunden ist, wobei sich die Austauschleitung (3) oberhalb der Destillationskolonne (7) befindet,
    dadurch gekennzeichnet, dass der Dephlegmierungsabschnitt (3B) an dem Kopf der Kolonne (7) befestigt ist, und dass die Kolonne und der Dephlegmierungsabschnitt so angeordnet sind, dass das mit Stickstoff angereicherte Gas direkt aus dem Kopf der Kolonne in die Durchgänge dieses Abschnitts austritt.
  2. Gerät nach Anspruch 1, umfassend Mittel zum Ansaugen (13) und / oder zur Entspannung von Luft (5) oder von verdampfter reicher Flüssigkeit.
  3. Gerät nach Anspruch 1 oder 2, wobei die Leitung zum Zuführen komprimierter, gereinigter und gekühlter Luft von der Austauschleitung zu der Destillationskolonne mit dem kalten Ende des Wärmeaustauschabschnitts (3A) verbunden ist.
  4. Gerät nach einem der vorhergehenden Ansprüche, umfassend Mittel zur Umverteilung der Durchgänge zwischen dem Wärmeaustauschabschnitt und dem Dephlegmierungsabschnitt.
  5. Gerät nach einem der vorhergehenden Ansprüche, wobei die Austauschleitung (3) aus Kupfer oder Aluminium ist und / oder die Destillationskolonne (7) aus Edelstahl ist.
  6. Gerät nach einem der vorhergehenden Ansprüche, wobei die Austauschleitung (3) und die Destillationskolonne (7) aus Aluminium sind.
EP06842175.9A 2005-12-20 2006-12-15 Lufttrennvorrichtung durch kryogenische destillation Active EP1966554B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06842175T PL1966554T3 (pl) 2005-12-20 2006-12-15 Urządzenie do rozdzielania powietrza za pomocą destylacji kriogenicznej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0553971A FR2895069B1 (fr) 2005-12-20 2005-12-20 Appareil de separation d'air par distillation cryogenique
PCT/FR2006/051366 WO2007074276A2 (fr) 2005-12-20 2006-12-15 Appareil de separation d'air par distillation cryogenique

Publications (2)

Publication Number Publication Date
EP1966554A2 EP1966554A2 (de) 2008-09-10
EP1966554B1 true EP1966554B1 (de) 2018-08-15

Family

ID=36660838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06842175.9A Active EP1966554B1 (de) 2005-12-20 2006-12-15 Lufttrennvorrichtung durch kryogenische destillation

Country Status (9)

Country Link
US (1) US20080271481A1 (de)
EP (1) EP1966554B1 (de)
JP (1) JP5074416B2 (de)
CN (1) CN101341370B (de)
DK (1) DK1966554T3 (de)
ES (1) ES2689041T3 (de)
FR (1) FR2895069B1 (de)
PL (1) PL1966554T3 (de)
WO (1) WO2007074276A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2026025A1 (de) * 2007-07-30 2009-02-18 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Gewinnung von Druckstickstoff durch Tieftemperaturzerlegung von Luft in einer Einzelsäule
FR2929384A1 (fr) * 2008-03-27 2009-10-02 Air Liquide Appareil de separation d'air comprenant une simple colonne de distillation
WO2009063146A1 (fr) * 2008-03-28 2009-05-22 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Echangeur de chaleur et appareil de séparation d'air par distillation cryogénique incorporant un tel échangeur
FR2973486B1 (fr) * 2011-03-31 2013-05-03 Air Liquide Procede de separation d'air par distillation cryogenique
EP3914870A4 (de) * 2019-01-25 2022-09-07 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Verfahren und vorrichtung zum zuführen eines stützgases unter druck
CN113350815A (zh) * 2020-03-05 2021-09-07 乔治洛德方法研究和开发液化空气有限公司 用于蒸馏塔的液体分配器

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JP2716762B2 (ja) * 1988-12-12 1998-02-18 大同ほくさん株式会社 高純度窒素ガス製造装置
FR2660741A1 (fr) 1990-04-10 1991-10-11 Air Liquide Procede et installation de production d'azote gazeux, et systeme de fourniture d'azote correspondant.
FR2665755B1 (fr) * 1990-08-07 1993-06-18 Air Liquide Appareil de production d'azote.
FR2675568B1 (fr) * 1991-04-19 1993-07-16 Air Liquide Procede de separation cryogenique de melanges contenant de l'oxygene et garnissages organises pour la mise en óoeuvre de ce procede.
FR2690231B1 (fr) * 1992-04-17 1994-06-03 Air Liquide Echangeur de chaleur a ruissellement et installation de distillation d'air comportant un tel echangeur.
US5275004A (en) * 1992-07-21 1994-01-04 Air Products And Chemicals, Inc. Consolidated heat exchanger air separation process
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JP3957842B2 (ja) * 1997-11-25 2007-08-15 大陽日酸株式会社 窒素製造方法及び装置
US5899093A (en) * 1998-05-22 1999-05-04 Air Liquide Process And Construction, Inc. Process and apparatus for the production of nitrogen by cryogenic distillation
US6079223A (en) * 1999-05-04 2000-06-27 Praxair Technology, Inc. Cryogenic air separation system for producing moderate purity oxygen and moderate purity nitrogen
US6125656A (en) * 1999-11-03 2000-10-03 Praxair Technology, Inc. Cryogenic rectification method for producing nitrogen gas and liquid nitrogen
US6237366B1 (en) * 2000-04-14 2001-05-29 Praxair Technology, Inc. Cryogenic air separation system using an integrated core
US6295836B1 (en) * 2000-04-14 2001-10-02 Praxair Technology, Inc. Cryogenic air separation system with integrated mass and heat transfer
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JP4520667B2 (ja) * 2001-07-17 2010-08-11 大陽日酸株式会社 空気分離方法および装置
EP1300640A1 (de) * 2001-10-04 2003-04-09 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Gewinnung von hoch reinem Stickstoff durch Tieftemperaturzerlegung von Luft
US6907751B2 (en) * 2002-07-30 2005-06-21 Air Products And Chemicals, Inc. Liquid distributor
JP4230213B2 (ja) * 2002-12-24 2009-02-25 大陽日酸株式会社 空気液化分離装置及び方法

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None *

Also Published As

Publication number Publication date
ES2689041T3 (es) 2018-11-08
FR2895069B1 (fr) 2014-01-31
US20080271481A1 (en) 2008-11-06
WO2007074276A2 (fr) 2007-07-05
FR2895069A1 (fr) 2007-06-22
WO2007074276A3 (fr) 2007-09-13
EP1966554A2 (de) 2008-09-10
JP2009520176A (ja) 2009-05-21
CN101341370A (zh) 2009-01-07
JP5074416B2 (ja) 2012-11-14
CN101341370B (zh) 2011-09-14
PL1966554T3 (pl) 2018-11-30
DK1966554T3 (en) 2018-10-15

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