FR2918162A1 - Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler - Google Patents

Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler Download PDF

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Publication number
FR2918162A1
FR2918162A1 FR0756022A FR0756022A FR2918162A1 FR 2918162 A1 FR2918162 A1 FR 2918162A1 FR 0756022 A FR0756022 A FR 0756022A FR 0756022 A FR0756022 A FR 0756022A FR 2918162 A1 FR2918162 A1 FR 2918162A1
Authority
FR
France
Prior art keywords
subcooler
head
liquid
pressure column
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
FR0756022A
Other languages
French (fr)
Inventor
Patrice Cavagne
Alain Guillard
Xavier Pontone
Delphine Vallier
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
Priority to FR0753767A priority Critical patent/FR2913758B3/en
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR0756022A priority patent/FR2918162A1/en
Priority to BRPI0807965-0A2A priority patent/BRPI0807965A2/en
Priority to JP2009553182A priority patent/JP2010521646A/en
Priority to EP08762127.2A priority patent/EP2132509B1/en
Priority to PL08762127T priority patent/PL2132509T3/en
Priority to TR2018/10844T priority patent/TR201810844T4/en
Priority to US12/530,833 priority patent/US20100139318A1/en
Priority to CN2008800079868A priority patent/CN102016467A/en
Priority to RU2009137584/06A priority patent/RU2479805C2/en
Priority to PCT/FR2008/050280 priority patent/WO2008110732A2/en
Publication of FR2918162A1 publication Critical patent/FR2918162A1/en
Pending 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
    • F25J3/04406—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
    • F25J3/04866—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
    • 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.
    • F25J3/04878—Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same 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
    • F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
    • 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
    • F25J2235/52—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen enriched compared to air ("crude oxygen")

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

Abstract

The apparatus has an air supplying unit (11) supplying air from a main exchange line to a medium-pressure column (1). A liquid supplying unit supplies liquid from a tank (13) of an elongated shape member (B) to a head of an auxiliary column (2). The liquid supplying unit supplies the liquid from the tank of the column (1) to a subcooler (6) and the member (B). The liquid supplying unit supplies the liquid from the head of the column (1) to the subcooler and the member (B). A gas supplying unit supplies gas (15) from the head of the member (B) to the subcooler.

Description

L'invention est relative à un procédé et à un appareil pour distillationThe invention relates to a process and apparatus for distillation

d'air par distillation cryogénique. En particulier, elle concerne un appareil utilisant une double colonne de séparation d'air comprenant une colonne moyenne pression et une colonne basse pression, reliées thermiquement entre elles par un rebouilleur-condenseur. EP-A-1078212 décrit un appareil où un échangeur de chaleur est positionné en dessous de la colonne basse pression, celle-ci étant placée à côté de la colonne moyenne pression. Selon la présente invention, il est prévu un appareil de séparation d'air comprenant une ligne d'échange principale, un premier élément de forme allongée comprenant la colonne moyenne pression d'une double colonne, surmontée d'un rebouilleur-condenseur et d'une colonne auxiliaire contenant au moins un plateau théorique constituant la partie inférieure de la colonne basse pression, un deuxième élément de forme allongée constituant le restant de la colonne basse pression, des moyens pour envoyer de l'air de la ligne d'échange principale à la colonne moyenne pression, des moyens pour envoyer un gaz de tête de la colonne moyenne pression au rebouilleur-condenseur, des moyens pour envoyer le gaz de tête condensé du rebouilleur à la colonne moyenne pression, des moyens pour envoyer un gaz de tête de la colonne auxiliaire à la cuve du deuxième éléments de forme allongée, des moyens pour envoyer un liquide de cuve du deuxième élément de forme allongée en tête de la colonne auxiliaire, un sous-refroidisseur placé en dessous du premier ou du deuxième élément de forme allongée, des moyens pour envoyer un liquide de cuve de la colonne moyenne pression au sous-refroidisseur et ensuite au deuxième élément de forme allongée et/ou des moyens pour envoyer un liquide de la tête de la colonne moyenne pression au sous-refroidisseur et ensuite au deuxième élément de forme allongée, des moyens pour envoyer un gaz de tête du deuxième élément de forme allongée au sous-refroidisseur. De préférence le sous-refroidisseur est placé en dessous du deuxième 30 élément de forme allongée. Le sous-refroidisseur et le deuxième élément de forme allongée peuvent être placés dans un paquet dont la longueur ne dépasse pas 35 mètres, voire 30 mètres.  of air by cryogenic distillation. In particular, it relates to an apparatus using a double air separation column comprising a medium pressure column and a low pressure column, thermally connected together by a reboiler-condenser. EP-A-1078212 discloses an apparatus where a heat exchanger is positioned below the low pressure column, which is placed next to the medium pressure column. According to the present invention, there is provided an air separation apparatus comprising a main exchange line, a first elongate member comprising the medium pressure column of a double column, surmounted by a reboiler-condenser and an auxiliary column containing at least one theoretical plate constituting the lower part of the low pressure column, a second elongated element constituting the remainder of the low pressure column, means for sending air from the main exchange line to the medium-pressure column, means for sending a head gas from the medium-pressure column to the reboiler-condenser, means for sending the condensed overhead gas from the reboiler to the medium pressure column, means for sending a head gas from the reboiler; column auxiliary to the tank of the second elongate member, means for sending a tank liquid of the second elongate member at the head of the auxiliary column, a sub-cooler placed below the first or second elongated member, means for supplying a bottom liquid from the medium pressure column to the subcooler and then to the second elongate member and / or means for supplying liquid from the head of the medium pressure column to the subcooler and then to the second elongated member, means for feeding a head gas from the second elongate member to the subcooler. Preferably the subcooler is located below the second elongated member. The subcooler and the second elongated element may be placed in a package whose length does not exceed 35 meters or even 30 meters.

Cette configuration permet d'occuper au mieux le volume de la boîte froide en : - équilibrant les hauteurs des deux sections de colonnes, - plaçant le sous-refroidisseur intelligemment pour optimiser la section de la boîte froide, - laissant la colonne moyenne pression au sol permettant une alimentation de l'air diphasique en charge sur la colonne, - assurant une bonne mise en charge du liquide sur la pompe de remontée de liquide, -permettant d'avoir une boîte froide incluant tronçon parallèle et minaret d'une hauteur inférieure à 35m, voire 30m tout en utilisant des garnissages structurés ondulés-croisés. L'invention sera décrite en plus de détails en se référant au dessin qui montre un appareil de séparation d'air selon l'invention.  This configuration makes it possible to better occupy the volume of the cold box by: - balancing the heights of the two column sections, - placing the subcooler intelligently to optimize the section of the cold box, - leaving the medium pressure column on the ground enabling a two-phase supply of air on the column, - ensuring a good loading of the liquid on the liquid lift pump, - allowing to have a cold box including parallel section and minaret of a height less than 35m, even 30m while using cross-waved structured lining. The invention will be described in more detail with reference to the drawing which shows an air separation apparatus according to the invention.

Un appareil de séparation d'air comprend un premier élément de forme allongée A et un deuxième élément de forme allongée B. Le premier élément de forme allongée A comprend la colonne moyenne pression 1 d'une double colonne surmonté d'un rebouilleur condenseur 5. Au-dessus de ce rebouilleur se trouve une colonne auxiliaire contenant quelques plateaux théoriques de garnissages structurés ondulés-croisés, constituant la partie inférieure 2 de la colonne basse pression. Le deuxième élément de forme allongée B est composé du restant de la colonne basse pression 3 contenant également des garnissages structurés ondulé-croisés.  An air separation apparatus comprises a first elongate element A and a second elongate element B. The first elongate element A comprises the middle pressure column 1 of a double column surmounted by a condensing reboiler 5. Above this reboiler is an auxiliary column containing a few theoretical trays of cross-corrugated structured packing constituting the lower part 2 of the low pressure column. The second elongated element B is composed of the remainder of the low pressure column 3 also containing corrugated-structured structured packings.

En dessous du deuxième élément se trouve un sous-refroidisseur 6. L'appareil comprend des moyens 11 pour envoyer de l'air comprimé épuré et refroidi dans la ligne d'échange principale, à la colonne moyenne pression. De l'azote de la tête de la colonne est envoyé au rebouilleur 5 où il se condense.  Below the second element is a sub-cooler 6. The apparatus comprises means 11 for sending purified compressed air and cooled in the main exchange line, the medium pressure column. Nitrogen from the top of the column is sent to the reboiler 5 where it condenses.

De l'oxygène gazeux 17 est soutiré en cuve de la colonne auxiliaire. De la tête de la colonne auxiliaire, un gaz 15 enrichi en oxygène est soutiré et envoyé en cuve de la colonne 3. Un liquide de cuve 13 de la colonne 3 est envoyé en tête de la colonne auxiliaire 2 après avoir été pressurisé dans une pompe P.  Oxygen gas 17 is withdrawn from the bottom of the auxiliary column. From the head of the auxiliary column, an oxygen-enriched gas is withdrawn and sent to the bottom of the column 3. A tank liquid 13 of the column 3 is sent to the top of the auxiliary column 2 after having been pressurized in a pump P.

Le premier élément de forme allongée est posé au niveau du sol. Le deuxième élément de forme allongée est surélevé au moyen d'un châssis métallique, ce châssis étant lui même posé au niveau du sol. Ce châssis servant par la même occasion de support au sous refroidisseur . La pompe P est également disposée au niveau du sol. De cette manière, les têtes de la colonne auxiliaire 2 et du deuxième élément de forme allongée se trouvent substantiellement au même niveau. Dans le sous-refroidisseur, du liquide riche de la cuve de la colonne moyenne pression se refroidit avant d'être envoyé au deuxième élément de forme allongée. De même, un ou plusieurs liquides enrichis en azote provenant de la tête de la colonne moyenne pression peuvent s'y refroidir avant d'être envoyé(s) en tête du deuxième élément de forme allongée. Au moins un gaz de tête du deuxième élément de forme allongée se réchauffe dans le sous-refroidisseur avant d'être envoyé à la ligne d'échange principale.  The first elongated element is placed at ground level. The second elongate element is raised by means of a metal frame, this frame itself being placed at ground level. This chassis serving at the same time support the sub cooler. The pump P is also disposed at ground level. In this way, the heads of the auxiliary column 2 and the second elongated element are substantially at the same level. In the subcooler, rich liquid from the medium pressure column vessel cools before being fed to the second elongate member. Similarly, one or more nitrogen-enriched liquids from the head of the medium-pressure column can cool thereon before being sent to the head of the second elongate member. At least one overhead gas of the second elongate member is heated in the subcooler prior to being sent to the main exchange line.

Claims (3)

REVENDICATIONS 1. Appareil de séparation d'air comprenant une ligne d'échange principale, un premier élément de forme allongée (A) comprenant la colonne moyenne pression (1) d'une double colonne, surmontée d'un rebouilleur-condenseur (5) et d'une colonne auxiliaire (2) contenant au moins un plateau théorique constituant la partie inférieure de la colonne basse pression, un deuxième élément (B) de forme allongée constituant le restant de la colonne basse pression, des moyens (11) pour envoyer de l'air de la ligne d'échange principale à la colonne moyenne pression, des moyens pour envoyer un gaz de tête de la colonne moyenne pression au rebouilleur-condenseur, des moyens pour envoyer le gaz de tête condensé du rebouilleur à la colonne moyenne pression, des moyens pour envoyer un gaz de tête (15) de la colonne auxiliaire à la cuve du deuxième élément de forme allongée, des moyens pour envoyer un liquide de cuve (13) du deuxième élément de forme allongée en tête de la colonne auxiliaire, un sous-refroidisseur (6) placé en dessous du premier ou du deuxième élément de forme allongée, des moyens pour envoyer un liquide de cuve de la colonne moyenne pression au sous-refroidisseur et ensuite au deuxième élément de forme allongée et/ou des moyens pour envoyer un liquide de la tête de la colonne moyenne pression au sous-refroidisseur et ensuite au deuxième élément de forme allongée et des moyens pour envoyer un gaz de tête du deuxième élément de forme allongée au sous-refroidisseur.  An air separation apparatus comprising a main exchange line, a first elongate member (A) comprising the medium pressure column (1) of a double column, surmounted by a reboiler-condenser (5) and an auxiliary column (2) containing at least one theoretical plate constituting the lower part of the low pressure column, a second element (B) of elongated shape constituting the remainder of the low pressure column, means (11) for sending the air from the main exchange line to the medium pressure column, means for sending a head gas from the medium pressure column to the reboiler-condenser, means for sending the condensed overhead gas from the reboiler to the medium pressure column means for feeding a head gas (15) from the auxiliary column to the vessel of the second elongate member; means for supplying a bottom liquid (13) of the second elongated member at the top of the column; auxiliary means, a subcooler (6) placed below the first or second elongated member, means for supplying a bottom liquid from the medium pressure column to the subcooler and then to the second elongated member and / or means for supplying a liquid from the head of the medium pressure column to the subcooler and then to the second elongated member and means for feeding a head gas from the second elongated member to the subcooler. 2. Appareil selon la revendication 1 dans lequel le sous-refroidisseur (6) est placé en dessous du deuxième élément (B) de forme allongée.  2. Apparatus according to claim 1 wherein the subcooler (6) is placed below the second element (B) of elongate shape. 3. Appareil selon la revendication 2 dans lequel le sous-refroidisseur (6) et le deuxième élément de forme allongée (B) sont placés dans un paquet dont la longueur ne dépasse pas 35 mètres, voire 30 mètres.  3. Apparatus according to claim 2 wherein the subcooler (6) and the second elongated member (B) are placed in a package whose length does not exceed 35 meters or even 30 meters.
FR0756022A 2007-03-12 2007-06-26 Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler Pending FR2918162A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FR0753767A FR2913758B3 (en) 2007-03-12 2007-03-12 METHOD AND APPARATUS FOR AIR SEPARATION BY CRYOGENIC DISTILLATION
FR0756022A FR2918162A1 (en) 2007-03-12 2007-06-26 Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler
PL08762127T PL2132509T3 (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation
JP2009553182A JP2010521646A (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation
EP08762127.2A EP2132509B1 (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation
BRPI0807965-0A2A BRPI0807965A2 (en) 2007-03-12 2008-02-20 CRYGEN DISTILATION AIR SEPARATION PROCESS AND APPARATUS
TR2018/10844T TR201810844T4 (en) 2007-03-12 2008-02-20 Method and apparatus for separating air by cryogenic distillation.
US12/530,833 US20100139318A1 (en) 2007-03-12 2008-02-20 Method And Device For Separating Air By Cryogenic Distillation
CN2008800079868A CN102016467A (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation
RU2009137584/06A RU2479805C2 (en) 2007-03-12 2008-02-20 Method and plant for air separation by method of cryogenic distillation
PCT/FR2008/050280 WO2008110732A2 (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0753767A FR2913758B3 (en) 2007-03-12 2007-03-12 METHOD AND APPARATUS FOR AIR SEPARATION BY CRYOGENIC DISTILLATION
FR0756022A FR2918162A1 (en) 2007-03-12 2007-06-26 Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler

Publications (1)

Publication Number Publication Date
FR2918162A1 true FR2918162A1 (en) 2009-01-02

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FR0753767A Expired - Lifetime FR2913758B3 (en) 2007-03-12 2007-03-12 METHOD AND APPARATUS FOR AIR SEPARATION BY CRYOGENIC DISTILLATION
FR0756022A Pending FR2918162A1 (en) 2007-03-12 2007-06-26 Air separation apparatus for cold box, has liquid supplying unit supplying liquid from head of medium-pressure column to subcooler and elongated shape member, and gas supplying unit supplying gas from head of member to subcooler

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR0753767A Expired - Lifetime FR2913758B3 (en) 2007-03-12 2007-03-12 METHOD AND APPARATUS FOR AIR SEPARATION BY CRYOGENIC DISTILLATION

Country Status (10)

Country Link
US (1) US20100139318A1 (en)
EP (1) EP2132509B1 (en)
JP (1) JP2010521646A (en)
CN (1) CN102016467A (en)
BR (1) BRPI0807965A2 (en)
FR (2) FR2913758B3 (en)
PL (1) PL2132509T3 (en)
RU (1) RU2479805C2 (en)
TR (1) TR201810844T4 (en)
WO (1) WO2008110732A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010012920A1 (en) 2010-03-26 2011-09-29 Linde Aktiengesellschaft Apparatus for the cryogenic separation of air
CN209524679U (en) * 2018-10-29 2019-10-22 乔治洛德方法研究和开发液化空气有限公司 By low temperature distillation come the equipment of air distillation
EP4396509A1 (en) * 2021-09-01 2024-07-10 Linde GmbH Plant and process for low-temperature fractionation of air

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633272A1 (en) * 1976-07-23 1978-01-26 Linde Ag Dual-pressure rectification using two columns - the first having the high-pressure stage and part of the low-pressure
EP0870524A1 (en) * 1997-04-11 1998-10-14 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plant for separating a gas mixture by distillation
US5966967A (en) * 1998-01-22 1999-10-19 Air Products And Chemicals, Inc. Efficient process to produce oxygen
FR2780147A1 (en) * 1999-06-29 1999-12-24 Air Liquide Air distillation plant having distillation columns fitted with structured packing
US6134915A (en) * 1999-03-30 2000-10-24 The Boc Group, Inc. Distillation column arrangement for air separation plant
JP2004251569A (en) * 2003-02-21 2004-09-09 Hitachi Ltd Cryogenic air separator

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU851034A1 (en) * 1979-09-04 1981-07-30 Предприятие П/Я А-3605 Unit for air separation
RU2100717C1 (en) * 1994-06-30 1997-12-27 Открытое акционерное общество криогенного машиностроения Method of production of nitrogen under pressure
US6205815B1 (en) * 1997-04-11 2001-03-27 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plant for separation of a gas mixture by distillation
FR2774752B1 (en) * 1998-02-06 2000-06-16 Air Liquide AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX
FR2778234B1 (en) * 1998-04-30 2000-06-02 Air Liquide AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX
FR2778233B1 (en) * 1998-04-30 2000-06-02 Air Liquide AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX
US6666048B1 (en) * 1999-04-05 2003-12-23 L'air Liquide - Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Variable capacity fluid mixture separation apparatus and process
FR2807150B1 (en) * 2000-04-04 2002-10-18 Air Liquide PROCESS AND APPARATUS FOR PRODUCING OXYGEN ENRICHED FLUID BY CRYOGENIC DISTILLATION
DE10113791A1 (en) * 2001-03-21 2002-10-17 Linde Ag Recovery of argon comprises using air decomposition system consisting of high pressure column, low pressure column and middle pressure column
US7296437B2 (en) * 2002-10-08 2007-11-20 L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for separating air by cryogenic distillation and installation for implementing this process

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633272A1 (en) * 1976-07-23 1978-01-26 Linde Ag Dual-pressure rectification using two columns - the first having the high-pressure stage and part of the low-pressure
EP0870524A1 (en) * 1997-04-11 1998-10-14 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plant for separating a gas mixture by distillation
US5966967A (en) * 1998-01-22 1999-10-19 Air Products And Chemicals, Inc. Efficient process to produce oxygen
US6134915A (en) * 1999-03-30 2000-10-24 The Boc Group, Inc. Distillation column arrangement for air separation plant
FR2780147A1 (en) * 1999-06-29 1999-12-24 Air Liquide Air distillation plant having distillation columns fitted with structured packing
JP2004251569A (en) * 2003-02-21 2004-09-09 Hitachi Ltd Cryogenic air separator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"AIR TRANSPORTABLE OXYGEN: NITROGEN PLANT TYPE AT-70", PUBLICATION BOC CRYOPLANTS, BOC CRYOPLANTS ENGINEERING CENTRE, GUILDFORD, GB, September 1991 (1991-09-01), pages 1 - 5, XP001223906 *

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