EP2895811A1 - Procédé et appareil de séparation d'air par distillation cryogénique. - Google Patents
Procédé et appareil de séparation d'air par distillation cryogénique.Info
- Publication number
- EP2895811A1 EP2895811A1 EP13767026.1A EP13767026A EP2895811A1 EP 2895811 A1 EP2895811 A1 EP 2895811A1 EP 13767026 A EP13767026 A EP 13767026A EP 2895811 A1 EP2895811 A1 EP 2895811A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- exchanger
- pressure
- air
- flow
- 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.)
- Granted
Links
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
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
-
- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/04084—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of 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
- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of 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
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
-
- 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
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low 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
- F25J3/04406—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
- F25J3/04406—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
- F25J3/0443—A main column system not otherwise provided, e.g. a modified double column flowsheet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
- F25J3/04812—Different modes, i.e. "runs" of operation
Definitions
- the present invention relates to a method and apparatus for air separation by cryogenic distillation.
- the invention proposes in particular a method and describes an apparatus for the transient production of a gas from an apparatus producing, in normal operation, oxygen and nitrogen gas and liquid oxygen and nitrogen.
- the apparatus comprises a double column having a first column operating at a first so-called medium pressure (MP) and a second column operating at a second so-called low pressure (BP), lower than the first pressure.
- MP medium pressure
- BP low pressure
- This gas, produced in transient mode may for example be pure nitrogen and under pressure and used during inerting phases of petrochemical processes requiring continuous large amounts of nitrogen over several days before requiring the gas requirements of normal walking.
- the present invention proposes an arrangement of dedicated body heat exchangers making it possible to specifically produce the gaseous requirement during the transient phase, and also produce the need for the other gas (s) (eg oxygen); the production of liquid nitrogen and oxygen can be reduced or even zero during the transient phase.
- the arrangement of the exchange bodies then makes it possible to produce in normal operation the gas and liquid requirements.
- the flexibility required of the main exchanger of the separating apparatus is all the greater as the productions required (in terms of pressure and flow) between different operating modes are remote.
- the dimensioning of the heat exchanger resulting from the different operating steps thus departs from a technico-economic optimum for a given step.
- An alternative solution is the production of medium pressure nitrogen gas from a medium pressure (MP) column and compressor compression. If the gas withdrawal from the MP column is insufficient, vaporization of stored liquid nitrogen will then be necessary.
- MP medium pressure
- the nitrogen can be produced by the upper stages of a low pressure column and then compressed by a compressor.
- the present invention provides an arrangement of dedicated body heat exchangers comprising a dedicated transient exchange line for specifically producing the gaseous requirement during the transient phase.
- the transient gas considered in this example is nitrogen but the invention is also applicable to other gases produced by the air separation apparatus.
- the transient nitrogen is pumped from the first column (MP column) and vaporized through a dedicated line of exchanger (called here exchange line transient) against high pressure air (HP) coming from the discharge of a booster possibly driven by a turbine; simultaneously, the pumped oxygen is vaporized through another dedicated line of exchangers against HP air from the discharge of the same booster or a second booster.
- the production of nitrogen gas which is normally produced from the MP column and heated against MP air from the air purification unit in a dedicated third exchange line, is stopped.
- the transient nitrogen production is stopped while the normal production of nitrogen gas from the MP column is established.
- the production of gaseous oxygen is maintained, and the liquid productions are adjusted to their normal instructions.
- the exchange line dedicated to the production of transient nitrogen gas only involves fluids that will change state as it passes: liquid nitrogen (LIN) vaporises into high pressure nitrogen (HP GAN) against HP air that liquefies.
- LIN liquid nitrogen
- HP GAN high pressure nitrogen
- the expected gain in compactness is substantial because, for the same 'charge' exchanged, the exchange volume can be less than half the volume usually required in the presence of a third fluid without change of state. Either, (Volume / Charge) transient exchanger
- This solution also makes it possible to specifically produce the necessary nitrogen according to the step required by the customer by a redistribution of the flows on the bodies of exchange concerned by the production.
- the transient phase only the transient nitrogen is produced and the passage of the exchange body used for the normal nitrogen is stopped.
- the normal phase only normal nitrogen is produced and the transient exchange body is stopped.
- a method for producing a first pressurized gas and a second gas in a pointwise manner by cryogenic distillation of the air in a double column comprising a first column and a second column, the second column operating at a lower pressure than the first column in which:
- a first step air is cooled to a first pressure which is substantially the operating pressure of the first column, in a first heat exchanger and is sent to the first column, two gas flows rich in nitrogen from the first and second columns are heated in the first heat exchanger, no fluid is heated or cooled in a second heat exchanger, at least one air flow at a second pressure greater than the first pressure cools in a third heat exchanger, a pressurized liquid vaporizes in the third exchanger and a nitrogen-rich gas flow from the second column is heated in the third heat exchanger, and ii) in a second step, air cools to the first pressure in the first exchanger and is sent to the first column, a gas flow rich in nitrogen from the second column is heated in the first exchanger, a pressurized liquid flow from the double column heats up and vaporizes in the second exchanger to form a gas required punctually, a flow of air at the second pressure cools and eventually condenses in the second exchanger, this air flow and the pressurized
- one of the air flows at the pressure greater than the operating pressure of the first column cools partially in the third heat exchanger in the first and second steps, is expanded in a turbine and sent to the first or second column.
- the flow rate sent to the turbine comes from a first booster the other of the air flows at the pressure greater than the operating pressure of the first column comes from a second booster driven by the turbine.
- a quantity of liquid is produced as the final product according to the first step and a lower quantity of liquid is produced than that produced in the first step as the final product according to the second step.
- the pressurized liquid flow is rich in nitrogen.
- a cryogenic distillation air separation installation comprising a double column comprising a first column and a second column, the second column operating at a lower pressure than the first column, a first column heat exchanger, a second heat exchanger capable of, and connected to, supply lines for allowing indirect heat exchange between only two fluids, a third heat exchanger, means for sending a flow of air to a first pressure substantially equal to the operating pressure of the first column at the first exchanger and the first exchanger at the first column, means for dividing air at a second pressure greater than the first pressure into first and second fractions , means for sending the first fraction at the second pressure to the second exchanger through a first era of the supply lines, a valve to prevent the sending of the first fraction to the second exchanger, means to send the second fraction to the second pressure to the third exchanger, possibly other means to send an air flow at a pressure greater than the first pressure at the third exchanger, means for sending a pressurized liquid from the double column to vaporize in
- the first exchanger a valve for preventing the delivery of nitrogen-rich gas from the first column to the first exchanger, means for sending a nitrogen enriched gas from the double column to the first exchanger and means for sending an enriched gas in nitrogen from the double column to the third exchanger.
- At least the first and third heat exchangers are brazed aluminum plate and fin exchangers.
- the apparatus used comprises three heat exchangers 1, 2, 3 which can be brazed aluminum plate and fin heat exchangers. It also comprises a system of distillation columns 25, comprising at least one double distillation column.
- the double column comprises a first column operating at a first pressure and a second column operating at a second pressure, lower than the first pressure.
- the apparatus comprises three air compressors, a main compressor, a first booster for supercharging a portion 13 of the air from the main compressor, a portion of the air of the first booster supplying a turbine and a second booster to boost a compressor. part 7 of the air from the first booster, this second booster being driven by the turbine. An air flow 5 at the first pressure is sent from the main compressor to the first column without being overpressed. Part 7 of the air is at least partially condensed before being sent to the column system.
- the apparatus has at least two operating steps. According to a first of these steps, which is the normal operation of the process, the air flow 5 at the first pressure is cooled in the exchanger 1 and sent to the first column where it is separated. A flow of nitrogen gas 23 from the first column and a flow of residual nitrogen 21 from the second column are heated in this first exchanger 1: the heat exchanger 1 allows the exchange between three fluids.
- the second heat exchanger 2 receives no fluid to cool or to heat.
- the third exchanger 3 cools air 7, 1 1 from the second booster driven by the turbine.
- the air partially condensed 1 1 is sent to the system of columns 25.
- the air 13 of the first booster is cooled and is sent to an intermediate temperature thereof to the turbine and then to the first or second column .
- the third exchanger heats residual nitrogen 17 from the second column and liquid oxygen from the second column after a pressurization step.
- the liquid oxygen can be replaced by gaseous oxygen from the second column.
- cryogenic liquid as final product 27 which may be liquid nitrogen and / or liquid oxygen.
- a second step called a transient step
- the air flow 5 at the first pressure is cooled in the exchanger 1 and sent to the first column where it is separated.
- a flow of residual nitrogen 21 from the second column is heated in this first exchanger 1: the heat exchanger 1 exchanges between two fluids only, the flow 23 is no longer sent to the exchanger 1, the valve V1 being closed.
- the second exchanger 2 receives air 9 through a valve V2 from the second booster and pump-pressurized liquid nitrogen 19 from the first column through the valve V3.
- the third exchanger 3 cools air 7, 1 1 from the second booster driven by the turbine.
- the partially condensed air 1 1 is sent to the system of columns 25.
- the air 13 of the first booster is cooled and is sent to an intermediate temperature thereof to the turbine, thus driving the second booster , and then to the first or second column.
- the third exchanger heats residual nitrogen 17 from the second column and liquid oxygen from the second column after a pressurization step.
- the liquid oxygen can be replaced by gaseous oxygen from the second column.
- cryogenic liquid 27 as final product which may be liquid nitrogen and / or liquid oxygen
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1258549A FR2995393B1 (fr) | 2012-09-12 | 2012-09-12 | Procede et appareil de separation d'air par distillation cryogenique. |
| PCT/FR2013/051985 WO2014041274A1 (fr) | 2012-09-12 | 2013-08-28 | Procédé et appareil de séparation d'air par distillation cryogénique. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2895811A1 true EP2895811A1 (fr) | 2015-07-22 |
| EP2895811B1 EP2895811B1 (fr) | 2016-11-23 |
Family
ID=47215601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13767026.1A Active EP2895811B1 (fr) | 2012-09-12 | 2013-08-28 | Procédé et appareil de séparation d'air par distillation cryogénique. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10012435B2 (fr) |
| EP (1) | EP2895811B1 (fr) |
| CN (1) | CN104620067B (fr) |
| FR (1) | FR2995393B1 (fr) |
| WO (1) | WO2014041274A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2963367A1 (fr) * | 2014-07-05 | 2016-01-06 | Linde Aktiengesellschaft | Procédé et dispositif cryogéniques de séparation d'air avec consommation d'énergie variable |
| FR3066809B1 (fr) * | 2017-05-24 | 2020-01-31 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et appareil pour la separation de l'air par distillation cryogenique |
| EP3438584B1 (fr) * | 2017-08-03 | 2020-03-11 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé et appareil de séparation d'air par distillation cryogénique |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3367023D1 (en) * | 1982-05-03 | 1986-11-20 | Linde Ag | Process and apparatus for obtaining gaseous oxygen at elevated pressure |
| US5355682A (en) * | 1993-09-15 | 1994-10-18 | Air Products And Chemicals, Inc. | Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen |
| JP2010536004A (ja) * | 2007-08-10 | 2010-11-25 | レール・リキード−ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | 極低温蒸留によって空気を分離する方法及び装置 |
| US20120125044A1 (en) * | 2010-11-19 | 2012-05-24 | Neil Mark Prosser | Feed compression method and apparatus for air separation process |
-
2012
- 2012-09-12 FR FR1258549A patent/FR2995393B1/fr active Active
-
2013
- 2013-08-28 CN CN201380047233.0A patent/CN104620067B/zh active Active
- 2013-08-28 WO PCT/FR2013/051985 patent/WO2014041274A1/fr not_active Ceased
- 2013-08-28 US US14/426,489 patent/US10012435B2/en active Active
- 2013-08-28 EP EP13767026.1A patent/EP2895811B1/fr active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014041274A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150241121A1 (en) | 2015-08-27 |
| EP2895811B1 (fr) | 2016-11-23 |
| CN104620067B (zh) | 2017-03-08 |
| WO2014041274A1 (fr) | 2014-03-20 |
| FR2995393B1 (fr) | 2014-10-03 |
| CN104620067A (zh) | 2015-05-13 |
| FR2995393A1 (fr) | 2014-03-14 |
| US10012435B2 (en) | 2018-07-03 |
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