EP2591300A2 - Appareil et procede de separation d'air par distillation cryogenique - Google Patents
Appareil et procede de separation d'air par distillation cryogeniqueInfo
- Publication number
- EP2591300A2 EP2591300A2 EP11728893.6A EP11728893A EP2591300A2 EP 2591300 A2 EP2591300 A2 EP 2591300A2 EP 11728893 A EP11728893 A EP 11728893A EP 2591300 A2 EP2591300 A2 EP 2591300A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- storage
- liquid
- oxygen
- purity
- 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.)
- Withdrawn
Links
Classifications
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- 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
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- 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
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- 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
- F25J3/0204—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 characterised by the feed stream
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- 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
- F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
- F25J3/04206—Division of the main heat exchange line in consecutive sections having different functions including a so-called "auxiliary vaporiser" for vaporising and producing a gaseous product
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- 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
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- 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
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- 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
- F25J3/04824—Stopping of the process, e.g. defrosting or deriming; Back-up procedures
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- 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
- F25J3/04836—Variable air feed, i.e. "load" or product demand during specified periods, e.g. during periods with high respectively low power costs
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- 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
- F25J3/04854—Safety aspects of operation
- F25J3/0486—Safety aspects of operation of vaporisers for oxygen enriched liquids, e.g. purging of liquids
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- 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
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/02—Mixing or blending of fluids to yield a certain product
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- 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
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
- F25J2215/54—Oxygen production with multiple pressure O2
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- 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
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- 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
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/50—One fluid being oxygen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/62—Details of storing a fluid in a tank
Definitions
- the present invention relates to an apparatus and method for air separation by cryogenic distillation.
- a purge liquid is sent to a storage, and a portion of the storage liquid is sent into an exchanger to be mixed with oxygen gas.
- the storage is also powered by liquid transported by a truck, so it is a liquid oxygen injection with a supplement of external liquid, thereby vaporizing the purge with heated oxygen gas.
- WO2010 / 017968 discloses sending an auxiliary vaporizer purge to a storage.
- US-A-5566556 discloses an air separation process in which the bottom liquid of the low pressure column is sent to storage as a purge flow.
- An object of the present invention is to value the frigories of the waste flows and to reduce the investment of the apparatus.
- oxygen is withdrawn from the column system and sent to a customer, possibly after vaporization in an auxiliary vaporizer other than the heat exchanger,
- an oxygen-rich liquid flow having a second oxygen purity, optionally less than 98 mol% of oxygen is sent to a storage from an external source and / or the column system,
- v) liquid is occasionally withdrawn from the storage and sent to a backup vaporizer to produce a backup product in case of stopping the column system or increased oxygen requirements of a customer
- the flow rate having the first purity is withdrawn in liquid form and is vaporized in the heat exchanger.
- the third storage purity liquid flow is sent only if the liquid level in the storage is above a given threshold.
- the liquid flow is withdrawn from the auxiliary vaporizer.
- the liquid flow having a third purity is sent to the storage only if no air flow is sent to the column system.
- the column system comprising a double column constituted by a medium pressure column and a low pressure column and optionally an argon column or a column fed by the medium pressure column operating at an intermediate pressure between the medium pressure and the low pressure and the liquid having the third purity comes from at least the tank of the argon column and / or the column operating at the intermediate pressure and / or the low pressure column and / or the medium pressure column.
- the liquid having the third purity comes solely from at least one column of the system.
- the liquid having the third purity comes from at least the auxiliary vaporizer.
- the liquid having the third purity comes solely from the auxiliary vaporizer.
- a cryogenic distillation air separation apparatus comprising a column system comprising a medium pressure column and a low pressure column and optionally an intermediate pressure column or an argon column, a supply line for supplying compressed, purified and cooled air to the column system, a product line for withdrawing a high oxygen flow rate from the column low pressure column system and to send it to a customer, possibly after vaporization in an auxiliary vaporizer, a storage, a backup vaporizer connected to the storage, a conduit for supplying the storage with an oxygen-rich liquid and a filling line connected to the storage and to the medium pressure column vessel and / or to the vessel of the intermediate pressure column and / or the tank of the argon column.
- the apparatus comprises: means for controlling the delivery of liquid from a column vessel of the column system through the filling line to storage, which means is controlled according to the liquid level in the storage.
- the apparatus does not include a dedicated vaporizer for the vaporization of a purge flow of the medium pressure column and / or the intermediate pressure column and / or the argon column, if appropriate.
- the purge can compensate the evaporation losses in the storage and the excess is vaporized in the system of the emergency vaporization (without recovery of frigories in the cold box).
- the invention is intended to send a purge flow to a storage of liquid oxygen, possibly using a pump according to its pressure.
- a flow rich in oxygen contains at least 75 mol%. oxygen.
- the transfer pump may also be that used for the transfer of liquid oxygen production, if any.
- the emergency spray is not used (the client does not consume) and the vaporization of the liquid in the storage will promote the evacuation of nitrogen (lighter) and therefore the oxygen concentrate.
- a flow of compressed and purified air 1 is cooled in a heat exchanger 3 and divided into three.
- a flow 7 is withdrawn from the exchanger at an intermediate level, expanded in a turbine 9 and sent to a low pressure column 13 of a double column in gaseous form.
- Another flow 5 after having been supercharged in the compressor A liquefies in the heat exchanger 3, is expanded in a valve January 1 and sent to the medium pressure column 1 3.
- a third flow B sent directly into the column medium pressure.
- Flow rates enriched with nitrogen and oxygen are sent from the medium pressure column to the low pressure column in a known manner.
- the liquid oxygen accumulates around the reboiler 17.
- An oxygen flow 19 containing less than 98% of oxygen is withdrawn from the tank of the low pressure column 15 and pressurized by a pressure vessel. pump 23 up to 2 bars, alternatively the compression can be hydrostatic.
- Part of the oxygen at this pressure is sent to a vaporizer 24 where it vaporizes by heat exchange with a portion of the supply air (5 or B) which is then sent to the column.
- a flow rate 1 21 containing impurities is withdrawn from the vaporizer 24 permanently or punctually.
- the vaporized oxygen continues to heat up in the exchanger 3 as the flow rate 27 of low pressure oxygen.
- the rest of the oxygen is pressurized to a pressure of 10 bar in a pump 25 and vaporizes in the exchanger 3 as flow 29. Alternately, all the oxygen can be vaporized to the lower pressure and the flow rate 29 does not exist.
- a purge flow 21 is withdrawn from the tank of the low pressure column 15. This liquid is richer in nitrogen than would normally be the flow withdrawn in column vat since all the liquids accumulated in the packings of the column fall to the bottom of the column.
- the purge of the vessel of the low pressure column can also be mixed with a purge of the medium pressure column withdrawn by the line 51, which is even richer in nitrogen than the flow rate withdrawn from the bottom of the low pressure column.
- One or other of these purge rates or a mixture of both are sent to storage 31 if the liquid level measured by the LL element does not exceed a given threshold. If the liquid level is low enough, the valve 41 opens and the purge liquid is sent into the storage.
- liquid in the storage comes from a tanker 61 or from the apparatus itself by the flow 21, which can be diverted to storage punctually.
- the liquid in the storage from the truck has a purity of 99.5 mol%.
- the pump 23 can be used to send the purge liquid 21 to the storage.
- a flow of liquid oxygen is withdrawn from the storage 31 and sent to a backup vaporizer 37 heated by the water vapor, hot water, air or other fluid.
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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1055423 | 2010-07-05 | ||
FR1055421 | 2010-07-05 | ||
PCT/EP2011/061278 WO2012004241A2 (fr) | 2010-07-05 | 2011-07-05 | Appareil et procede de separation d'air par distillation cryogenique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2591300A2 true EP2591300A2 (fr) | 2013-05-15 |
Family
ID=45441586
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11728894.4A Active EP2591301B1 (fr) | 2010-07-05 | 2011-07-05 | Appareil et procédé de séparation d'air par distillation cryogénique |
EP11728893.6A Withdrawn EP2591300A2 (fr) | 2010-07-05 | 2011-07-05 | Appareil et procede de separation d'air par distillation cryogenique |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11728894.4A Active EP2591301B1 (fr) | 2010-07-05 | 2011-07-05 | Appareil et procédé de séparation d'air par distillation cryogénique |
Country Status (5)
Country | Link |
---|---|
US (2) | US20130098106A1 (fr) |
EP (2) | EP2591301B1 (fr) |
CN (2) | CN103282733B (fr) |
ES (1) | ES2820436T3 (fr) |
WO (2) | WO2012004242A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014169989A1 (fr) * | 2013-04-18 | 2014-10-23 | Linde Aktiengesellschaft | Dispositif de post-équipement pour la décomposition d'air à basse température, installation de post-équipement et procédé de post-équipement d'une installation de décomposition d'air à basse température |
FR3084736B1 (fr) * | 2018-08-01 | 2022-04-15 | Air Liquide | Procede et appareil de production d'argon par distillation cryogenique de l'air |
DE102019000335A1 (de) | 2019-01-18 | 2020-07-23 | Linde Aktiengesellschaft | Verfahren zur Bereitstellung von Luftprodukten und Luftzerlegungsanlage |
FR3095153B1 (fr) * | 2019-04-18 | 2021-11-26 | Air Liquide France Ind | Procédé d'alimentation en fluide cryogénique d'une machine d'usinage |
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Publication number | Priority date | Publication date | Assignee | Title |
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GB2125949B (en) * | 1982-08-24 | 1985-09-11 | Air Prod & Chem | Plant for producing gaseous oxygen |
DE3913880A1 (de) * | 1989-04-27 | 1990-10-31 | Linde Ag | Verfahren und vorrichtung zur tieftemperaturzerlegung von luft |
FR2652887B1 (fr) * | 1989-10-09 | 1993-12-24 | Air Liquide | Procede et installation de production d'oxygene gazeux a debit variable par distillation d'air. |
FR2699992B1 (fr) * | 1992-12-30 | 1995-02-10 | Air Liquide | Procédé et installation de production d'oxygène gazeux sous pression. |
FR2706195B1 (fr) * | 1993-06-07 | 1995-07-28 | Air Liquide | Procédé et unité de fourniture d'un gaz sous pression à une installation consommatrice d'un constituant de l'air. |
EP0793069A1 (fr) * | 1996-03-01 | 1997-09-03 | Air Products And Chemicals, Inc. | Générateur d'oxygène à deux degrés de pureté avec compresseur pour le rebouilleur |
FR2751737B1 (fr) * | 1996-07-25 | 1998-09-11 | Air Liquide | Procede et installation de production d'un gaz de l'air a debit variable |
JPH10132458A (ja) * | 1996-10-28 | 1998-05-22 | Nippon Sanso Kk | 酸素ガス製造方法及び装置 |
US5907959A (en) * | 1998-01-22 | 1999-06-01 | Air Products And Chemicals, Inc. | Air separation process using warm and cold expanders |
DK1051588T3 (da) * | 1998-01-30 | 2002-07-01 | Linde Ag | Fremgangsmåde og indretning til fordampning af flydende oxygen |
AU741499B2 (en) * | 1998-02-04 | 2001-11-29 | Ge Energy (Usa), Llc | Combined cryogenic air separation with integrated gasifier |
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- 2011-07-05 WO PCT/EP2011/061278 patent/WO2012004241A2/fr active Application Filing
- 2011-07-05 EP EP11728894.4A patent/EP2591301B1/fr active Active
- 2011-07-05 EP EP11728893.6A patent/EP2591300A2/fr not_active Withdrawn
- 2011-07-05 CN CN201180033395.XA patent/CN103282733B/zh not_active Expired - Fee Related
- 2011-07-05 US US13/805,367 patent/US9581386B2/en active Active
- 2011-07-05 ES ES11728894T patent/ES2820436T3/es active Active
- 2011-07-05 CN CN201180033186.5A patent/CN103282732B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
WO2012004241A2 (fr) | 2012-01-12 |
CN103282732B (zh) | 2016-08-03 |
ES2820436T3 (es) | 2021-04-21 |
US9581386B2 (en) | 2017-02-28 |
WO2012004241A3 (fr) | 2013-11-28 |
US20130098106A1 (en) | 2013-04-25 |
WO2012004242A2 (fr) | 2012-01-12 |
US20130133364A1 (en) | 2013-05-30 |
EP2591301B1 (fr) | 2020-09-02 |
CN103282732A (zh) | 2013-09-04 |
WO2012004242A3 (fr) | 2013-11-28 |
CN103282733B (zh) | 2015-11-25 |
EP2591301A2 (fr) | 2013-05-15 |
CN103282733A (zh) | 2013-09-04 |
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