EP1106945B1 - Procédé de séparation d'air par distillation cryogénique - Google Patents
Procédé de séparation d'air par distillation cryogénique Download PDFInfo
- Publication number
- EP1106945B1 EP1106945B1 EP00403354A EP00403354A EP1106945B1 EP 1106945 B1 EP1106945 B1 EP 1106945B1 EP 00403354 A EP00403354 A EP 00403354A EP 00403354 A EP00403354 A EP 00403354A EP 1106945 B1 EP1106945 B1 EP 1106945B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- liquid
- mixing
- gas
- process according
- 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.)
- Expired - Lifetime
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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
- F25J3/04709—Producing crude argon in a crude argon column as an auxiliary column system in at least a dual pressure main column system
- F25J3/04715—The auxiliary column system simultaneously produces oxygen
-
- 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
- F25J3/0446—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 the heat generated by mixing two different phases
-
- 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
- F25J3/0446—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 the heat generated by mixing two different phases
- F25J3/04466—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 the heat generated by mixing two different phases for producing oxygen as a mixing column overhead gas by mixing gaseous air feed and liquid oxygen
-
- 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
- F25J3/04969—Retrofitting or revamping of an existing air fractionation unit
-
- 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
- F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system
- F25J2200/06—Processes or apparatus using separation by rectification in a dual pressure main column system in a classical double column flow-sheet, 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
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/50—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen
-
- 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
- F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
-
- 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
- F25J2245/50—Processes or apparatus involving steps for recycling of process streams the recycled stream being oxygen
-
- 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
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/20—Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling or condensing streams
-
- 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
- Y10S62/923—Inert gas
- Y10S62/924—Argon
Definitions
- the present invention relates to a separation method and installation of air by cryogenic distillation.
- it relates to a method of pure oxygen production using a mixing column and possibly Argon production using an argon column
- EP-A-0269342 relates to the case in which the argon column is connected thermally with a mixing column so that the lead gas of the Argon column heats the mixing column.
- US-A-5551258 discloses a method according to the preamble of claim 1 wherein a mixing column is fed at the top by a liquid containing 55% vol. of oxygen, the top gas of the mixing column then serving to heat the tank condenser of the low pressure column.
- An object of the present invention is to increase the amount of gaseous oxygen pure (containing more than 99.5 mol% of oxygen) that can be produced by a double air separation column.
- the overhead gas of the mixing column can be withdrawn at the top of the mixing column or at most five theoretical plates below the top of the mixing column.
- Figure 1 The installation of Figure 1 comprises a double column 1 comprising a medium pressure column 3 and a low pressure column 5 connected between they by a vaporizer 7.
- the vaporizer includes liquid vaporization passages and two independent series of heating passages for two different heating gases.
- the low pressure column operates at between 1.4 and 2.7 bar and the column medium pressure operates at between 5 and 8 bar.
- the argon column 9 is fed from a first level of the column low pressure 5. There is also a mixing column 11 that operates at a pressure between 1.9 bar and 3.7 bar.
- An air flow 13 is sent to the column 3 and a blown air flow 14 is sent to column 5.
- a liquid flow containing 40 mol%. of oxygen is drawn from the medium pressure column vessel 3: a part 17 of this liquid feeds the low pressure column 5 after expansion in a valve and a part 19 of the liquid is relaxed to between 1.7 and 2.2 bar absolute in a valve and sent to head condenser 21 of the argon column 9 where it vaporizes at least partially.
- the vaporized liquid 23 is sent to the bottom of the mixing column.
- the nitrogen at the top of the medium pressure column condenses at least partially in the vessel vaporizer 7 and the condensate is sent to the column medium pressure and / or the low pressure column.
- a gas flow 41 containing at least 80 mol% of nitrogen is drawn off at the head of the medium pressure column as a product and constitutes 10 to 15% of supply air.
- a nitrogen-enriched liquid flow rate containing less than 2 mol% of oxygen is sent from the medium pressure column to the top of the column low pressure.
- a liquid flow 27 containing less than 5 mol% of nitrogen is drawn off in low pressure column vessel 5 below the gas withdrawal point 26 for the argon column 9.
- the second liquid is withdrawn from the low pressure column at a level at least 5 theoretical plateaus below the injection point of the low pressure column (or the point of injection most low), possibly at least 10 theoretical plateaus below the point injecting the low pressure column (or the lowest point of injection) and / or at a level of about one-third theoretical plateaus of the low pressure column above the tank of the low pressure column.
- This liquid is sent after pumping to between 1.9 and 3.7 bar at the head of the mixing column 11.
- this flow 27 is mixed with the liquid of tank 29 of the argon column before being pressurized and sent to the column of mixed.
- a gas flow 31 containing at most 5 mol% of nitrogen is sent from the head of the mixing column to the vaporizer 7 where it is condensed in separate passages from those in which the nitrogen of the column is condensed medium pressure in order to increase the reflux in a low pressure column.
- this nitrogen can condense air or other fluid less volatile than medium pressure nitrogen, provided that it is condensed in another system condenser, normally above the vaporizer.
- Part of the flow 31 may serve as an oxygen enriched product.
- An intermediate liquid 33 of the mixing column containing 80 mol%. of oxygen is sent to the low pressure column 5.
- the tank liquid 35 of the mixing column containing 65 mol%. of oxygen is sent to the low pressure column 5.
- a flow 37 containing more than 99.5 mol%. of oxygen is drawn off in the tank of the low pressure column 5 either in gaseous form or under liquid form.
- the low pressure column is fed from downwardly with lean liquid containing less than 1 mol% oxygen, the insufflation air 14, the non-vaporized rich liquid 45 of the head condenser of the argon column, the rich liquid 17, the liquid of the tank of the mixing column 35, the intermediate liquid of the mixing column 33 and the recondensed mixture 31 of the vaporizer 7.
- the low pressure column contains at least 80 theoretical trays and preferably at least 90 theoretical plateaus.
- Figure 2 differs from that of Figure 1 in that the column The mixture is tank-fed exclusively by a flow of air from possibly a turbine or booster (not shown). The steam of condenser 21 of the argon column is sent to the low pressure column just below the point of injection of the rich liquid 45.
- the argon column can be removed entirely or can be reduced to a simple liquid vaporizer heated by a gas from the low pressure column (which amounts to a column argon without theoretical distillation trays).
- the argon column and / or the low pressure column can be constructed in two sections as described in EP-A-0628777.
- the second liquid 27 is withdrawn from the low pressure column at a level at least 5 theoretical plateaus below the liquid injection point rich 45 of the low pressure column, possibly at least 10 theoretical plates below the injection point of the low pressure column, and / or at a level of about a third of theoretical plateaux of the low pressure column above the tank of the low pressure column.
- the second liquid 27 is drawn off, preferably, at a level between the low pressure column vessel 5 and the level of withdrawal of the feed 26 of the argon column 9, in the case where there is an argon column.
- medium pressure and low pressure columns can be built side by side.
- the frigories necessary for the apparatus can be provided by at least an inflation turbine and / or at least one Claude turbine and / or at least one nitrogen turbine.
- the apparatus can produce liquids and / or gases.
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)
Description
et une colonne basse pression comprenant un vaporiseur pour vaporiser le liquide de cuve de la colonne basse pression,
comprenant les étapes de :
- envoyer de l'air refroidi et comprimé à la colonne moyenne pression,
- envoyer un liquide enrichi en oxygène et un liquide enrichi en azote de la colonne moyenne pression à la colonne basse pression,
- envoyer du gaz à la cuve de la colonne de mélange,
- envoyer un deuxième liquide enrichi en oxygène de la colonne basse pression à la tête de la colonne de mélange, ce deuxième liquide étant moins volatil que le gaz alimentant la cuve de la colonne de mélange,
- soutirer un fluide riche en oxygène de la colonne basse pression
- envoyer au moins une partie d'un gaz, éventuellement le gaz de tête, de la colonne de mélange à des passages de chauffage du vaporiseur
- le gaz de tête de la colonne de mélange se condense au moins partiellement dans le vaporiseur et le condensat est envoyé à un niveau de la colonne basse pression, éventuellement au-dessus du premier niveau.
- on envoie le liquide de cuve de la colonne argon en tête de la colonne de mélange.
- on envoie un liquide de cuve et un liquide intermédiaire de la colonne de mélange à la double colonne.
- un gaz de la colonne moyenne pression ou de l'air se condense au moins partiellement dans d'autres passages de chauffage du vaporiseur.
- le gaz de tête de la colonne de mélange comprend 3 à 5% mol. d'azote.
- le gaz de tête de la colonne de mélange comprend au moins 93%mol., éventuellement au moins 95% mol. d'oxygène.
- le liquide envoyé en tête de la colonne de mélange contient au moins 98% mol. d'oxygène.
- la colonne de mélange fonctionne à une pression entre 0,5 et 1 bar au dessus de la pression de la colonne basse pression.
Claims (15)
- Procédé de séparation d'air par distillation cryogénique pour produire de l'oxygène avec une double colonne (1) comprenant :une colonne moyenne pression (3)une colonne basse pression (5) comprenant un vaporiseur (7) pour vaporiser le liquide de cuve de la colonne basse pression,envoyer de l'air refroidi et comprimé à la colonne moyenne pression,envoyer un liquide enrichi en oxygène et un liquide enrichi en azote de la colonne moyenne pression à la colonne basse pression,envoyer du gaz (23) à la cuve de la colonne de mélange (11),envoyer un deuxième liquide (27) enrichi en oxygène de la colonne basse pression à la tête de la colonne de mélange, ce deuxième liquide étant moins volatil que le gaz alimentant la cuve de la colonne de mélange,soutirer un fluide riche en oxygène 37 de la colonne basse pressionenvoyer au moins une partie d'un gaz, éventuellement le gaz de tête, de la colonne de mélange à des passages de chauffage du vaporiseur
- Procédé selon la revendication 1 dans lequel le gaz (23) envoyé en cuve de la colonne de mélange est un liquide vaporisé enrichi en oxygène, soutiré sous forme liquide (19) de la colonne moyenne pression et ensuite vaporisé.
- Procédé selon la revendication 2 dans lequel le liquide est vaporisé dans un condenseur de tete (21) d'une colonne argon (9).
- Procédé selon la revendication 2 dans lequel le liquide est vaporisé dans un condenseur chauffé par un gaz provenant de la colonne basse pression (5).
- Procédé selon l'une des revendications 1 à 4 dans lequel le gaz de tête de la colonne de mélange (11) se condense au moins partiellement dans le vaporiseur (7) et le condensat est éventuellement envoyé à un niveau au-dessus d'un premier niveau de la colonne basse pression d'où un gaz enrichi en argon est soutiré et envoyé dans une colonne d'argon.
- Procédé selon la revendication 3 comprenant l'étape d'envoyer le liquide de cuve de la colonne argon (9) en tête de la colonne de mélange (11).
- Procédé selon l'une des revendications 1 à 6 comprenant l'étape d'envoyer un liquide de cuve et/ou un liquide intermédiaire de la colonne de mélange (11) à la double colonne (1).
- Procédé selon l'une des revendications 1 à 7 dans lequel un gaz de la colonne moyenne pression ou de l'air se condense au moins partiellement dans d'autres passages de chauffage du vaporiseur.
- Procédé selon l'une des revendications 1 à 8 dans lequel le gaz de tête de la colonne de mélange(11 ) comprend 0,1 à 5 % mol.d'azote, de préférence entre 1 et 3 % mol.d'azote.
- Procédé selon l'une des revendications 1 à 9 dans lequel le gaz de tête de la colonne de mélange (11) comprend au moins 93 %, mol. éventuellement au moins 95% mol. d'oxygène.
- Procédé selon l'une des revendications 1 à 10 dans lequel le liquide envoyé en tête de la colonne de mélange (11) contient au moins 99% mol. d'oxygène.
- Procédé selon l'une des revendications 1 à 11 dans lequel on envoie de l'air à une turbine d'insufflation qui envoie de l'air à la colonne basse pression ou à la colonne de mélange (11).
- Procédé selon l'une des revendications 1 à 12 dans lequel on soutire du gaz en tête de la colonne moyenne pression comme produit.
- Procédé selon l'une des revendications 1 à 13 dans lequel le gaz envoyé à la cuve de la colonne de mélange est enrichi en oxygène par rapport à de l'air.
- Procédé selon l'une des revendications 1 à 14 dans lequel la colonne de mélange opère à une pression entre 0 ,5 et 1 bar au-dessus de la pression de la colonne basse pression.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9915208 | 1999-12-02 | ||
FR9915208A FR2801963B1 (fr) | 1999-12-02 | 1999-12-02 | Procede et installation de separation d'air par distillation cryogenique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1106945A1 EP1106945A1 (fr) | 2001-06-13 |
EP1106945B1 true EP1106945B1 (fr) | 2005-06-01 |
Family
ID=9552807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00403354A Expired - Lifetime EP1106945B1 (fr) | 1999-12-02 | 2000-11-30 | Procédé de séparation d'air par distillation cryogénique |
Country Status (6)
Country | Link |
---|---|
US (1) | US6385996B2 (fr) |
EP (1) | EP1106945B1 (fr) |
JP (1) | JP2001194058A (fr) |
AT (1) | ATE297001T1 (fr) |
DE (1) | DE60020500T2 (fr) |
FR (1) | FR2801963B1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2854232A1 (fr) * | 2003-04-23 | 2004-10-29 | Air Liquide | Procede de distillation d'air pour produire de l'argon |
CN102620520B (zh) * | 2012-04-09 | 2014-09-17 | 开封黄河空分集团有限公司 | 一种由空气分离制取压力氧气和压力氮气附产液氩的工艺 |
CN103162512B (zh) * | 2013-01-27 | 2015-06-10 | 南京瑞柯徕姆环保科技有限公司 | 一种等压分离制取氧氮的空分装置 |
JP5655104B2 (ja) | 2013-02-26 | 2015-01-14 | 大陽日酸株式会社 | 空気分離方法及び空気分離装置 |
EP3557166A1 (fr) | 2018-04-19 | 2019-10-23 | Linde Aktiengesellschaft | Procédé de décomposition à basse température de l'air et installation de décomposition de l'air |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4022030A (en) * | 1971-02-01 | 1977-05-10 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Thermal cycle for the compression of a fluid by the expansion of another fluid |
FR2584803B1 (fr) * | 1985-07-15 | 1991-10-18 | Air Liquide | Procede et installation de distillation d'air |
FR2655137B1 (fr) * | 1989-11-28 | 1992-10-16 | Air Liquide | Procede et installation de distillation d'air avec production d'argon. |
FR2680114B1 (fr) * | 1991-08-07 | 1994-08-05 | Lair Liquide | Procede et installation de distillation d'air, et application a l'alimentation en gaz d'une acierie. |
EP0636845B1 (fr) * | 1993-04-30 | 1999-07-28 | The BOC Group plc | Séparation d'air |
US5379599A (en) | 1993-08-23 | 1995-01-10 | The Boc Group, Inc. | Pumped liquid oxygen method and apparatus |
US5490391A (en) * | 1994-08-25 | 1996-02-13 | The Boc Group, Inc. | Method and apparatus for producing oxygen |
US5551258A (en) * | 1994-12-15 | 1996-09-03 | The Boc Group Plc | Air separation |
FR2774159B1 (fr) * | 1998-01-23 | 2000-03-17 | Air Liquide | Installation combinee d'un four et d'un appareil de distillation d'air et procede de mise en oeuvre |
US5865041A (en) * | 1998-05-01 | 1999-02-02 | Air Products And Chemicals, Inc. | Distillation process using a mixing column to produce at least two oxygen-rich gaseous streams having different oxygen purities |
GB9902101D0 (en) * | 1999-01-29 | 1999-03-24 | Boc Group Plc | Separation of air |
-
1999
- 1999-12-02 FR FR9915208A patent/FR2801963B1/fr not_active Expired - Fee Related
-
2000
- 2000-11-30 DE DE60020500T patent/DE60020500T2/de not_active Expired - Fee Related
- 2000-11-30 US US09/725,462 patent/US6385996B2/en not_active Expired - Fee Related
- 2000-11-30 AT AT00403354T patent/ATE297001T1/de not_active IP Right Cessation
- 2000-11-30 EP EP00403354A patent/EP1106945B1/fr not_active Expired - Lifetime
- 2000-12-04 JP JP2000368526A patent/JP2001194058A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE60020500T2 (de) | 2006-03-23 |
FR2801963A1 (fr) | 2001-06-08 |
US20010003909A1 (en) | 2001-06-21 |
FR2801963B1 (fr) | 2002-03-29 |
ATE297001T1 (de) | 2005-06-15 |
DE60020500D1 (de) | 2005-07-07 |
JP2001194058A (ja) | 2001-07-17 |
US6385996B2 (en) | 2002-05-14 |
EP1106945A1 (fr) | 2001-06-13 |
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