US20100139318A1 - Method And Device For Separating Air By Cryogenic Distillation - Google Patents

Method And Device For Separating Air By Cryogenic Distillation Download PDF

Info

Publication number
US20100139318A1
US20100139318A1 US12/530,833 US53083308A US2010139318A1 US 20100139318 A1 US20100139318 A1 US 20100139318A1 US 53083308 A US53083308 A US 53083308A US 2010139318 A1 US2010139318 A1 US 2010139318A1
Authority
US
United States
Prior art keywords
elongated shape
pressure column
column
conveying
cooler
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.)
Abandoned
Application number
US12/530,833
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Assigned to L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE reassignment L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CAVAGNE, PATRICE, GUILLARD, ALAIN, PONTONE, XAVIER, VALLIER, DELPHINE
Publication of US20100139318A1 publication Critical patent/US20100139318A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—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")

Definitions

  • the invention relates to a method and an apparatus for distilling air by cryogenic distillation.
  • it relates to an apparatus using a double air separation column comprising a medium pressure column and a low pressure column connected thermally together by a reboiler-condenser.
  • EP-A-1078212 describes an apparatus where a heat exchanger is positioned below the low pressure column, this being placed beside the medium pressure column.
  • an air separation apparatus comprising a main exchange line, a first element with an elongated shape 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 element with an elongated shape constituting the remainder of the low pressure column, means for conveying air from the main exchange line to the medium pressure column, means for conveying a head gas from the medium pressure column to the reboiler-condenser, means for conveying the condensed head gas from the reboiler to the medium pressure column, means for conveying a head gas from the auxiliary column to the vessel of the second element with an elongated shape, means for conveying a vessel liquid from the second element with an elongated shape into the head of the auxiliary column, a sub-cooler placed below the first or second element with an elongated shape, means for conveying a vessel liquid
  • the sub-cooler is placed below the second element with an elongated shape.
  • the sub-cooler and the second element with an elongated shape may be placed in a pack of which the length does not exceed 35 metres, or even 30 metres.
  • An air separation apparatus comprises a first element with an elongated shape A and a second element with an elongated shape B.
  • the first element with an elongated shape A comprises the medium pressure column 1 of a double column surmounted by a reboiler condenser 5 .
  • An auxiliary column is located above this reboiler containing a few theoretical plates of structured corrugated-crossed packings, constituting the lower part 2 of the low pressure column.
  • the second element with an elongated shape B is composed of the remainder of the low pressure column 3 also containing structured corrugated-crossed packings.
  • a sub-cooler 6 is located below the second element.
  • the apparatus includes means 11 for conveying purified compressed and cooled air in the main exchange line, to the medium pressure column. Nitrogen from the head of the column is conveyed to the reboiler 5 where it is condensed.
  • Gaseous oxygen 17 is withdrawn from the vessel of the auxiliary column.
  • An oxygen-rich gas 15 is withdrawn from the head of the auxiliary column and conveyed to the vessel of the column 3 .
  • a vessel liquid 13 from the column 3 is conveyed to the head of the auxiliary column 2 after having been pressurised in a pump P.
  • the first element with an elongated shape is placed at ground level.
  • the second element with an elongated shape is raised up by means of a metal frame, this frame being itself placed at ground level. This frame serves at the same time to support the cooler.
  • the pump P is also positioned at ground level.
  • the heads of the auxiliary column 2 and the second element with an elongated shape are situated substantially at the same level.
  • the rich liquid from the vessel of the medium pressure column is cooled in the sub-cooler before being conveyed to the second element with an elongated shape.
  • one or more nitrogen-rich liquids coming from the head of the medium pressure column may be cooled there before being conveyed to the head of the second element with an elongated shape.
  • At least one head gas from the second element with an elongated shape is reheated in the sub-cooler before being conveyed to the main exchange line.

Abstract

A method and an apparatus for distilling air by cryogenic distillation is presented. The invention relates to an apparatus using a double air separation column comprising a medium pressure column and a low pressure column connected thermally together by a reboiler-condenser.

Description

  • The invention relates to a method and an apparatus for distilling 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 connected thermally together by a reboiler-condenser.
  • EP-A-1078212 describes an apparatus where a heat exchanger is positioned below the low pressure column, this being placed beside the medium pressure column.
  • According to the present invention, an air separation apparatus is provided comprising a main exchange line, a first element with an elongated shape 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 element with an elongated shape constituting the remainder of the low pressure column, means for conveying air from the main exchange line to the medium pressure column, means for conveying a head gas from the medium pressure column to the reboiler-condenser, means for conveying the condensed head gas from the reboiler to the medium pressure column, means for conveying a head gas from the auxiliary column to the vessel of the second element with an elongated shape, means for conveying a vessel liquid from the second element with an elongated shape into the head of the auxiliary column, a sub-cooler placed below the first or second element with an elongated shape, means for conveying a vessel liquid from the medium pressure column to the sub-cooler and then to the second element with an elongated shape and/or means for conveying a head liquid from the medium pressure column to the sub-cooler and then to the second element with an elongated shape, and means for conveying a head gas from the second element with an elongated shape to the sub-cooler.
  • Preferably, the sub-cooler is placed below the second element with an elongated shape.
  • The sub-cooler and the second element with an elongated shape may be placed in a pack of which the length does not exceed 35 metres, or even 30 metres.
  • This configuration makes it possible to best occupy the volume of the cold box by:
  • balancing the heights of the two column sections,
  • placing the sub-cooler intelligently in order to optimise the cross section of the cold box,
  • leaving the medium pressure column on the ground permitting a diphasic air feed charged on the column,
  • ensuring the satisfactory charging of liquid on the pump for raising liquid,
  • making it possible to have a cold box including a parallel section and minaret with a height less than 35 m, or even 30 m while using structured corrugated-crossed packings.
  • The invention will be described in greater detail with reference to the drawing that shows an air separation apparatus according to the invention.
  • An air separation apparatus comprises a first element with an elongated shape A and a second element with an elongated shape B. The first element with an elongated shape A comprises the medium pressure column 1 of a double column surmounted by a reboiler condenser 5. An auxiliary column is located above this reboiler containing a few theoretical plates of structured corrugated-crossed packings, constituting the lower part 2 of the low pressure column.
  • The second element with an elongated shape B is composed of the remainder of the low pressure column 3 also containing structured corrugated-crossed packings.
  • A sub-cooler 6 is located below the second element.
  • The apparatus includes means 11 for conveying purified compressed and cooled air in the main exchange line, to the medium pressure column. Nitrogen from the head of the column is conveyed to the reboiler 5 where it is condensed.
  • Gaseous oxygen 17 is withdrawn from the vessel of the auxiliary column.
  • An oxygen-rich gas 15 is withdrawn from the head of the auxiliary column and conveyed to the vessel of the column 3. A vessel liquid 13 from the column 3 is conveyed to the head of the auxiliary column 2 after having been pressurised in a pump P.
  • The first element with an elongated shape is placed at ground level. The second element with an elongated shape is raised up by means of a metal frame, this frame being itself placed at ground level. This frame serves at the same time to support the cooler. The pump P is also positioned at ground level.
  • In this way, the heads of the auxiliary column 2 and the second element with an elongated shape are situated substantially at the same level.
  • The rich liquid from the vessel of the medium pressure column is cooled in the sub-cooler before being conveyed to the second element with an elongated shape.
  • Similarly, one or more nitrogen-rich liquids coming from the head of the medium pressure column may be cooled there before being conveyed to the head of the second element with an elongated shape.
  • At least one head gas from the second element with an elongated shape is reheated in the sub-cooler before being conveyed to the main exchange line.

Claims (3)

1. An apparatus for separating air comprising a main exchange line, a first element with an elongated shape (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 with an elongated shape (B) constituting the remainder of the low pressure column, means (11) for conveying air from the main exchange line to the medium pressure column, means for conveying a head gas from the medium pressure column to the reboiler-condenser, means for conveying the condensed head gas from the reboiler to the medium pressure column, means for conveying a head gas (15) from the auxiliary column to the vessel of the second element with an elongated shape, means for conveying a vessel liquid (13) from the second element with an elongated shape into the head of the auxiliary column, a sub-cooler (6) placed below the first or second element with an elongated shape, means for conveying a vessel liquid from the medium pressure column to the sub-cooler and then to the second element with an elongated shape and/or means for conveying a head liquid from the medium pressure column to the sub-cooler and then to the second element with an elongated shape, and means for conveying a head gas from the second element of elongated shape to the sub-cooler.
2. The apparatus as claimed in claim 1, wherein the sub-cooler (6) is placed below the second element with an elongated shape (B).
3. The apparatus as claimed in claim 2, wherein the sub-cooler (6) and the second element with an elongated shape (B) are placed in a pack of which the length does not exceed 35 meters, or even 30 meters.
US12/530,833 2007-03-12 2008-02-20 Method And Device For Separating Air By Cryogenic Distillation Abandoned US20100139318A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR0753767 2007-03-12
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
FR0756022 2007-06-26
PCT/FR2008/050280 WO2008110732A2 (en) 2007-03-12 2008-02-20 Method and device for separating air by cryogenic distillation

Publications (1)

Publication Number Publication Date
US20100139318A1 true US20100139318A1 (en) 2010-06-10

Family

ID=39760146

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/530,833 Abandoned US20100139318A1 (en) 2007-03-12 2008-02-20 Method And Device For Separating Air 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9170048B2 (en) 2010-03-26 2015-10-27 Linde Aktiengesellschaft Device for the cryogenic separation of air
US10969167B2 (en) * 2018-10-29 2021-04-06 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude Apparatus for the distillation of air by cryogenic distillation
WO2023030683A1 (en) * 2021-09-01 2023-03-09 Linde Gmbh Plant and process for low-temperature fractionation of air

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US6167723B1 (en) * 1998-04-30 2001-01-02 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Installation for the distillation of air and corresponding cold box
US6182470B1 (en) * 1998-04-30 2001-02-06 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Air distillation plant and corresponding cold box
US20010052243A1 (en) * 2000-04-04 2001-12-20 Benoit Davidian Process and unit for the production of a fluid enriched in oxygen by cryogenic distillation
US6530242B2 (en) * 2001-03-21 2003-03-11 Linde Aktiengesellschaft Obtaining argon using a three-column system for the fractionation of air and a crude argon column
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
US20050193765A1 (en) * 2002-10-08 2005-09-08 Emmanuel Garnier Process for separating air by cryogenic distillation and installation for implementing this process

Family Cites Families (8)

* 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
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
FR2761897B1 (en) * 1997-04-11 1999-05-14 Air Liquide INSTALLATION FOR SEPARATING A GAS MIXTURE BY DISTILLATION
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
FR2780147B1 (en) * 1999-06-29 2001-01-05 Air Liquide AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX
JP2004251569A (en) * 2003-02-21 2004-09-09 Hitachi Ltd Cryogenic air separator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966967A (en) * 1998-01-22 1999-10-19 Air Products And Chemicals, Inc. Efficient process to produce oxygen
US6167723B1 (en) * 1998-04-30 2001-01-02 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Installation for the distillation of air and corresponding cold box
US6182470B1 (en) * 1998-04-30 2001-02-06 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Air distillation plant and corresponding cold box
US6134915A (en) * 1999-03-30 2000-10-24 The Boc Group, Inc. Distillation column arrangement for air separation plant
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
US20010052243A1 (en) * 2000-04-04 2001-12-20 Benoit Davidian Process and unit for the production of a fluid enriched in oxygen by cryogenic distillation
US6530242B2 (en) * 2001-03-21 2003-03-11 Linde Aktiengesellschaft Obtaining argon using a three-column system for the fractionation of air and a crude argon column
US20050193765A1 (en) * 2002-10-08 2005-09-08 Emmanuel Garnier Process for separating air by cryogenic distillation and installation for implementing this process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9170048B2 (en) 2010-03-26 2015-10-27 Linde Aktiengesellschaft Device for the cryogenic separation of air
US10969167B2 (en) * 2018-10-29 2021-04-06 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude Apparatus for the distillation of air by cryogenic distillation
WO2023030683A1 (en) * 2021-09-01 2023-03-09 Linde Gmbh Plant and process for low-temperature fractionation of air
WO2023030682A3 (en) * 2021-09-01 2023-04-27 Linde Gmbh Plant and process for low-temperature air separation

Also Published As

Publication number Publication date
EP2132509B1 (en) 2018-06-27
CN102016467A (en) 2011-04-13
FR2913758B3 (en) 2009-11-13
PL2132509T3 (en) 2018-11-30
WO2008110732A3 (en) 2010-03-11
FR2918162A1 (en) 2009-01-02
WO2008110732A2 (en) 2008-09-18
TR201810844T4 (en) 2018-08-27
BRPI0807965A2 (en) 2014-06-10
FR2913758A1 (en) 2008-09-19
RU2009137584A (en) 2011-04-20
JP2010521646A (en) 2010-06-24
RU2479805C2 (en) 2013-04-20
EP2132509A2 (en) 2009-12-16

Similar Documents

Publication Publication Date Title
CA2900122C (en) Air separation plant, method for obtaining a product containing argon, and method for creating an air separation plant
CN111065872B (en) System and method for recovering non-condensable gases such as neon, helium, xenon, and krypton from an air separation unit
US6776004B2 (en) Air fractionation process and installation with mixing column and krypton-xenon recovery
US11846468B2 (en) Method and unit for low-temperature air separation
CN107850387B (en) Method and apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system
US5934104A (en) Multiple column nitrogen generators with oxygen coproduction
US20100139318A1 (en) Method And Device For Separating Air By Cryogenic Distillation
US20100221168A1 (en) Cryogenic system for neon production
EP0483302B1 (en) Cryogenic air separation method for the production of oxygen and medium pressure nitrogen
EP0640802B1 (en) Air separation
US10443931B2 (en) Method and device for the cryogenic decomposition of air
US20100024478A1 (en) Process and device for recovering argon by low-temperature separation of air
US10401083B2 (en) Plant for producing oxygen by cryogenic air separation
CA2347762A1 (en) Cryogenic air separation system with split kettle recycle
DK1966554T3 (en) Apparatus for separating air by cryogenic distillation
EP2447653A1 (en) Process for cryogenic air separation using a side condenser
US7296437B2 (en) Process for separating air by cryogenic distillation and installation for implementing this process
US9964353B2 (en) System and method for generation of oxygen by low-temperature air separation
AU776702B2 (en) Process and device for the low-temperature fractionation of air
WO2009136077A3 (en) Method and apparatus for separating air by cryogenic distillation
US20210348842A1 (en) System and method for recovery of nitrogen, argon, and oxygen in moderate pressure cryogenic air separation unit
JP4148512B2 (en) Air separation method and apparatus used therefor
US20070137248A1 (en) Method and apparatus for separating air by cryogenic distillation
CN115516263A (en) Optimization of medium pressure nitrogen and argon producing cryogenic air separation units
JPH06307762A (en) Manufacture of argon

Legal Events

Date Code Title Description
AS Assignment

Owner name: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EX

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CAVAGNE, PATRICE;GUILLARD, ALAIN;PONTONE, XAVIER;AND OTHERS;REEL/FRAME:023956/0146

Effective date: 20090804

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION