EP0949471B1 - Unité de séparation de l'air à deux modes de fonctionnement - Google Patents

Unité de séparation de l'air à deux modes de fonctionnement Download PDF

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Publication number
EP0949471B1
EP0949471B1 EP19990106715 EP99106715A EP0949471B1 EP 0949471 B1 EP0949471 B1 EP 0949471B1 EP 19990106715 EP19990106715 EP 19990106715 EP 99106715 A EP99106715 A EP 99106715A EP 0949471 B1 EP0949471 B1 EP 0949471B1
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EP
European Patent Office
Prior art keywords
air
liquid
pressure
refrigeration
rectification
Prior art date
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Expired - Lifetime
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EP19990106715
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German (de)
English (en)
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EP0949471A1 (fr
Inventor
Jürgen Dipl.-Phys. Voit
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Linde GmbH
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Linde GmbH
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Application filed by Linde GmbH filed Critical Linde GmbH
Priority to EP19990106715 priority Critical patent/EP0949471B1/fr
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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
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04951—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network
    • F25J3/04957—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network and inter-connecting equipments upstream of the fractionation unit (s), i.e. at the "front-end"
    • 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
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed air
    • 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
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04024—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of purified feed air, so-called boosted air
    • 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
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    • 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
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    • 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
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    • 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
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    • 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
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F25J3/04145—Mechanically coupling of different compressors of the air fractionation process to the same driver(s)
    • 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
    • F25J3/04296—Claude expansion, i.e. expanded into the main or 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
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/04339—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air
    • F25J3/04345—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air and comprising a gas work expansion loop
    • 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
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    • 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
    • F25J3/04418—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 with thermally overlapping high and low pressure columns
    • 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
    • F25J3/04436—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 at least a triple pressure main column system
    • F25J3/04448—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 at least a triple pressure main column system in a double column flowsheet with an intermediate 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
    • F25J3/04472—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 cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
    • F25J3/04496—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 cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist
    • 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
    • F25J3/04472—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 cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
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    • F25J3/04503—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 cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist by exchanging "cold" between at least two different cryogenic liquids, e.g. independently from the main heat exchange line of the air fractionation and/or by using external alternating storage systems
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    • 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
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    • 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
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    • F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
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    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/40—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being air
    • 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
    • F25J2235/42—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being 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
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/40—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
    • F25J2240/42—Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval the fluid being air
    • 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
    • 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
    • Y10S62/90—Triple column

Definitions

  • the invention relates to a method for Generation of gaseous pressure product by low-temperature separation of air, at times in a gas operation and at times in a combined operation is operated.
  • the invention also relates to an apparatus for performing this method.
  • EP 0 044 679 A1 is a process for the production of gaseous Compressed oxygen (DGOX) and small amounts of liquid oxygen (LOX) known: cold supplies for air separation and the production of liquid product Air cooling circuit. It contains a compression with two compressor stages in series Compression of an air flow in the first stage to a medium pressure for one work-relieving relaxation of a partial flow of this air to a lower pressure and a second compressor stage to compress the remaining air flow to one higher pressure for throttle relaxation to the same low pressure.
  • the refrigeration cycle in such a The process cannot be switched off and the cooling capacity is reduced an energetically unfavorable operation.
  • the object of the invention is a method and a device of the aforementioned Kind with an energetically favorable production of the gaseous printed product and of the liquid product in variable quantities and with high availability of the Generation of the printed product.
  • the gas operation of the Air flow in the refrigeration circuit is reduced to zero and a compensation of Cold losses that are no longer covered by the refrigeration cycle are extremely cold stored liquid is used.
  • This enables the generation of gaseous printed product even with a full liquid product tank, for example stored liquid product in a heat exchanger in counterflow to used air is guided, this air is cooled, partially liquefied and the Rectification is supplied or by stored liquid directly to the rectification is fed.
  • Cryogenic liquid of at least one liquid fraction from the rectification for example liquid nitrogen (LIN), liquid oxygen (LOX) or liquid air Compensation for cold losses in gas operation can be in a tank be cached, being used as a tank to store these fractions Buffer tanks and / or product tanks can be used. Most is the use of Product tanks are the cheapest solution, while liquid air is more like a buffer tank Required, since liquid air usually doesn't matter as a product.
  • LIN liquid nitrogen
  • LOX liquid oxygen
  • Temporary storage can be used temporarily using at least two tanks be made, on the one hand with increased pressure oxygen (DGOX) demand in addition to the LOX from rectification from one tank LOX removed, compressed, evaporated in countercurrent and warmed and then as DGOX product is released and thereby recovered in countercurrent cold and is used to create and cache LIN product, where on the other hand, with low DGOX requirements, correspondingly little LOX from the Rectification system given as DGOX and more LOX temporarily stored becomes.
  • DGOX pressure oxygen
  • a two-column process can be used for rectification, one Head cooling of the pressure column with an intermediate liquid from a low pressure column accomplished and a sump heating of the low pressure column by indirect Heat exchange with air is made.
  • the two-column process is from DE 196 09 490 A1 and is particularly suitable if only a small one Oxygen purity is required.
  • a three-column process can also be used as the rectification system, being a double column with a high pressure part and a low pressure part and a Additional column is used under intermediate pressure.
  • the three-column process is from DE 195 37 913 A1 known. Even with oxygen purities> 99.5 mol% are with this Process energy savings possible.
  • the work-relieving relaxation can take place in at least one cooling turbine, the power on the shaft of such a turbine for driving either one electricity generating generator or a booster is used, the booster is used, for example, to recompress the air in the refrigeration cycle. In In both cases, the energy of the cooling turbine is used cheaply.
  • Characteristic of the device according to the invention is that the compressor station is designed with at least two compressors arranged in parallel, which are designed in this way are that only one of the compressors is in operation in gas operation, this compressor Throttle air supplies and the refrigeration circuit is not pressurized while in Operation with production of printed product and liquid product at least two in parallel arranged compressors are in operation and in addition to supplying throttle air the cooling circuit is pressurized with air.
  • a compressor station has several advantages.
  • a compressor is energetically connected to its gas operation cheapest operating point, with additional production of liquid product several, for example two compressors close to their optimal operating point used. With several compressors, one becomes simultaneously Machine redundancy created that ensures security of supply in gas operation increased accordingly.
  • Another advantage of the invention is that with a Compressor, operated as a cycle compressor, also an energy-efficient liquid product can be generated and that this liquid operation through machine redundancy is also made possible with high security of supply.
  • the refrigeration turbine in the refrigeration circuit wiring harness can function as a turbine / generator unit be trained.
  • the energy gained in the cooling turbine is transferred to the local power grid fed.
  • the cooling turbine in the wiring harness of the cooling circuit can act as a turbine / booster unit be formed, the booster in the wiring harness of the refrigeration circuit as Post-compressor air is switched from the compressor station in the refrigeration turbine gained energy, for example via a common wave with a Booster used to drive this booster.
  • a secondary compressor for air from the Compressor station can be arranged.
  • the changing demand can be energy-efficient with a high security of supply of the steelworks on gaseous printed products.
  • the Invention and further refinements of the invention are described below of exemplary embodiments illustrated in the drawings.
  • air to be broken down is drawn in at 1 and in an air compressor 30 a first pressure, essentially medium pressure column pressure (plus line losses) compressed, pre-cooled in a cooling device 31 in direct contact with water and in a cleaning device (molecular sieve system) 32 in particular of water and Free of carbon dioxide.
  • a first pressure essentially medium pressure column pressure (plus line losses) compressed, pre-cooled in a cooling device 31 in direct contact with water and in a cleaning device (molecular sieve system) 32 in particular of water and Free of carbon dioxide.
  • the cleaned air is divided into three sub-streams, the first of which without further measures to increase pressure via line 103, through a main heat exchanger 2 and is introduced via line 104 into a medium pressure column 6.
  • the medium pressure column 6 is - according to the respective product specification and the pressure loss - under operated at a pressure of 2 to 4 bar, preferably about 2.5 to 3.5 bar.
  • the second partial flow of the cleaned air is in a post-compressor 202 essential pressure column pressure (plus line losses) compressed, in Main heat exchanger 2 in indirect heat exchange with cold process streams cooled to dew point temperature and introduced into the bottom of a pressure column 7 (see positions 201,202,203,2,204 and 7).
  • the pressure column 7 is at one Working pressure of 5 to 10 bar, preferably operated 5.5 to 6.5 bar and is over a main capacitor 3 thermally coupled to a low pressure column 5.
  • Latter works at a pressure of 1.1 to 2.0 bar, preferably 1.3 to 1.7 bar.
  • the Air post-compressor 202 can be driven by the same motor shaft as that Air compressor 30.
  • the third partial flow is fed via a line 301 to a compressor station 305 for Turbine air (306, 307, 308) into a turbine 309 and / or for rectification air (313, 314, 315), the intake pressure 303 using a throttle device 302 can be reduced especially in underload operation.
  • the air of the third partial flow is about in the compression station 305
  • Medium pressure column pressure compressed to a pressure equal to an air condensation temperature corresponds, which is at least approximately equal to Evaporation temperature of the liquid pressurized oxygen 17 is alternatively the third partial flow of the cleaned air also on the pressure side of the air post-compressor 202 are branched off when air (312) from the expansion turbine 309 is fed into the pressure column 7.
  • the suction pressure of the compressor station 305 then corresponds to the pressure column pressure.
  • a first portion 307 of the highly compressed air 306 is at a temperature 308 which between the temperatures at the warm and cold ends of the Main heat exchanger 2 is fed to the expansion turbine 309 and there for example, medium pressure column pressure relaxed while working.
  • the embodiment is the turbine output by a brake generator to the The relaxed turbine outlet flow is partly through the Main heat exchanger 2 via lines 310,311 and 304 to the suction side of the Compressor station 305 returned, partly via line 312 in the bottom of the Medium pressure column 6 fed.
  • a second part 313 of the highly compressed air 306 is against the evaporating Pressurized oxygen 17 at least partially, preferably completely or in essentially completely liquefied, to a part 314 above the sump in the Low pressure column 5 and another part 315 in the bottom of the pressure column 7 relaxed.
  • Bottom liquid 70 and washing nitrogen 74 from the top of the pressure column 7 are in a supercooling counterflow 4 against a residual gas flow 50
  • Low pressure column 5 supercooled and in each case in the low pressure column 5 and / or in the Medium pressure column relaxed (lines 71, 72, 73, 75, 76 and 77).
  • Bottom liquid 60 and washing nitrogen 61 from the medium pressure column are also in the Subcooling countercurrent 4 subcooled against the residual gas stream 50 (not in Figure 1 shown) or the bottom liquid 60 directly into the top condenser 10 of the Medium pressure column and the washing nitrogen 61 on the head of the low pressure column 5 given up.
  • a residual gas stream 51 and products from the rectification section, in Example GOX and DGOX are approximately in the main heat exchanger 2 Ambient temperature warmed up (lines 51, 52, 54, 55, 17 and 18).
  • the Residual gas stream 52 can be completely or partially as stream 53 for the regeneration of the Molecular sieve station 32 can be used.
  • Liquid oxygen 15 is taken from the bottom of the low pressure column, depending on Product specification with the help of an oxygen pump 16 to the required Delivery pressure compressed or completely or partially into a removable storage tank 80 filled.
  • Liquid nitrogen 78 is drawn off from the top of the low pressure column 5 or branched off from one of the washing nitrogen lines 75 or 61 and likewise internally compressed (not shown in FIG. 1) or in a removable storage tank 79 fed.
  • the compressor station 305 consists of at least two in parallel switched compressors. This makes it possible to also use the removable storage system to operate as a pure gas apparatus, i.e. without liquid production the to generate internally compressed oxygen (DGOX).
  • DGOX internally compressed oxygen
  • one of the two compressors of the compression station 305 is taken out of operation and the second compressor takes over the task of compressing the inside Evaporate pressurized oxygen 17.
  • the compressor station 305 thus exists according to the invention from two compressors, each with a different function, from one for the generation of cold for liquid production and the other for Evaporation of the internally compressed oxygen is used.
  • the removable storage tanks 79 and 80 are used in the example of a time-limited Overproduction of DGOX, the removal of LOX and LIN as sales products, as Emergency supply tanks, as removable storage of the LOX and LIN cold contents and as Cooling supply with the cooling circuit switched off.
  • the compressor station shown in FIG. 1 can be single-stage or multi-stage machines with intercooling and / or aftercooling included.
  • the work output of the Expansion turbine 309 in the present embodiment to a booster transfer.
  • the air throttle flow 313 is cooled in the Main heat exchanger 2 and subsequent isenthalpic relaxation in the Double column 5,7 compressed to a pressure which is at least as large as that Final pressure of the compressor station 305 of the exemplary embodiment in FIG. 1.
  • air to be broken down is drawn in at 1 and in an air compressor 30 a first pressure, essentially medium pressure column pressure (plus line losses) compressed, pre-cooled in a cooling device 31 in direct contact with water and in a cleaning device (molecular sieve system) 32 in particular of water and Free of carbon dioxide.
  • a first pressure essentially medium pressure column pressure (plus line losses) compressed, pre-cooled in a cooling device 31 in direct contact with water and in a cleaning device (molecular sieve system) 32 in particular of water and Free of carbon dioxide.
  • the cleaned air is divided into three sub-streams, the first of which without further measures to increase pressure via line 103, through main heat exchanger 2 and can be introduced via line 104 into a medium pressure column 6.
  • the Medium pressure column 6 is - according to the respective product specification and Pressure loss - under a pressure of 2 to 4 bar, preferably about 2.5 to 3.5 bar operated.
  • the second partial flow of the cleaned air is applied to one in a post-compressor 202 Compresses pressure that corresponds to an air condensation temperature that at least approximately the same as the evaporation temperature of a liquid low-pressure oxygen 15 is, in the main heat exchanger 2 in indirect heat exchange with cold Process streams cooled and in a bottom condenser 3 of the low pressure column 5 introduced (see positions 201, 202, 203, 2, 204 and 3).
  • the Air post-compressor 202 can be driven by the same motor shaft as that Air compressor 30.
  • the two-column apparatus shown works with high oxygen purities (greater than 99.5%) in the limit case over into the normal double column apparatus (see e.g. patent DE 195 26 785 C1).
  • the second partial flow then goes to zero and that Low pressure column taps of streams 62 and 63 shift towards the swamp the low pressure column 5, so that the top capacitor 10 to the main capacitor of the Double column is and the pressure of the medium pressure column corresponding to the thermal coupling increased
  • the third partial flow is fed via a line 301 to a compressor station 305 for Turbine air (306, 307, 308) into a turbine 309 and / or for rectification air (313, 314, 315) supplied, the suction pressure 303 thereof with the aid of a throttle device 302 can be reduced in particular in underload operation.
  • the air of the third Partial flow is in the compressor station 305 from about medium pressure column pressure compresses a pressure that corresponds to an air condensation temperature that at least approximately equal to the vaporization temperature of the liquid pressurized oxygen 17 is.
  • a first partial stream 307 of the highly compressed air 306 is fed via line 308 to a Temperature that is between the temperatures at the warm and cold ends of the Main heat exchanger 2 is fed to the expansion turbine 309 and there for example, medium pressure column pressure relaxed while working.
  • the embodiment is the turbine output by a brake generator to the The relaxed turbine outlet flow is partly through the Main heat exchanger 2 via lines 310,311 and 304 to the suction side of the Compressor station 305 returned, partly via line 312 in the bottom of the Medium pressure column 6 fed
  • a second partial flow 313 of the highly compressed air 306 is against the evaporating pressurized oxygen 17 at least partially, preferably completely or essentially completely liquefied, to a part 314 above the sump in the low pressure column 5 and another part 315 in the swamp of the Medium pressure column 6 relaxed.
  • Liquid oxygen 15 is taken from the bottom of the low pressure column, depending on Product specification with the help of an oxygen pump 16 to the required Delivery pressure compressed or completely or partially into a removable storage tank 80 filled.
  • Liquid nitrogen 78 is drawn off from the top of the low pressure column 5 or branched off from the washing nitrogen line 61 and likewise internally compressed (in 1 not shown) or fed into the removable storage tank 79.
  • the compressor station 305 consists of at least two in parallel switched compressors. This makes it possible to also use the removable storage system to operate as a pure gas apparatus, i.e. without liquid production the to generate internally compressed oxygen (DGOX).
  • DGOX internally compressed oxygen
  • one of the two compressors of the compression station 305 is taken out of operation and the second compressor takes over the task of compressing the inside Evaporate pressurized oxygen 17.
  • the compressor station 305 thus exists according to the invention from two compressors, each with a different function, from one for the generation of cold for liquid production and the other for Evaporation of the internally compressed oxygen is used.
  • the removable storage tanks 79 and 80 are used in the example of a time-limited Overproduction of DGOX, the removal of LOX and LIN as sales products, as Emergency supply tanks, as removable storage of the LOX and LIN cold contents and as Cooling supply with the cooling circuit switched off.
  • the compressor station shown in FIG. 3 can be single-stage or multi-stage machines with intercooling and / or aftercooling included.
  • the work performance of the Expansion turbine 309 in the present embodiment to a booster transfer.
  • the air throttle flow 313 is cooled in the Main heat exchanger 2 and subsequent isenthalpic expansion into the columns 5 and 6 compressed to a pressure at least as large as the ultimate pressure of the Compressor station 305 of the exemplary embodiment in FIG. 3.
  • the table shows the product flows, the alternating storage flows, for the (circulation and throttle air) compressor station the number of compressors in operation, the air flows and the energy requirements of the system. All gas and liquid flows are given in m 3 / h, whereby m 3 / h in the normal state are meant at 1atm and 273 K.
  • the operating cases A1, A2 and A3 are characterized in that both compressors of the compressor station are in operation and supply a turbine flow and a throttle flow.

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  • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation Of Gases By Adsorption (AREA)

Claims (12)

  1. Procédé en vue de la production d'un produit comprimé gazeux par fractionnement à basse température d'air, qui est exploité par moments dans un fonctionnement à gaz et par moments dans un fonctionnement combiné,
    étant donné que, dans le fonctionnement à gaz et dans le fonctionnement combiné,
    de l'air de charge purifié est refroidi sous surpression, partiellement liquéfié et soumis, en vue de l'extraction de fractions gazeuses et liquides, à une rectification,
    du liquide réfrigéré d'au moins une des fractions liquides provenant de la rectification sous pression élevée est évaporé par échange thermique indirect avec l'air de charge, est échauffé et est obtenu en tant que produit comprimé gazeux,
    étant donné que, dans le fonctionnement combiné, du produit comprimé gazeux et du produit liquide sont obtenus et
    que le froid requis à cet effet est produit dans un cycle frigorifique d'air, dans lequel l'air est comprimé dans le cycle frigorifique et est détendu en fournissant du travail, de la chaleur étant retirée ce faisant de l'air, et l'air détendu en fournissant du travail étant à nouveau réchauffé, au moins en partie à contre-courant de l'air de charge à refroidir et étant alors à nouveau comprimé en retour,
    que le liquide réfrigéré est produit par rectification et est au moins stocké en partie,
    et étant donné que, au cours du fonctionnement à gaz, le débit d'air dans le cycle frigorifique est réduit à zéro et que du liquide stocké réfrigéré est utilisé pour compenser les pertes de froid, qui ne peuvent plus être couvertes par le cycle frigorifique.
  2. Procédé selon la revendication 1, caractérisé en ce que le liquide réfrigéré d'au moins une fraction liquide provenant de la rectification, par exemple, l'azote liquide (LIN), l'oxygène liquide (LOX) ou l'air liquide, est stocké de manière intermédiaire dans un réservoir en vue de la compensation des pertes de froid dans le fonctionnement à gaz, des récipients tampon et/ou les réservoirs de produit étant utilisés en tant que réservoir en vue du stockage de ces fractions.
  3. Procédé selon la revendication 1, caractérisé en ce que l'on effectue par moments, par utilisation d'au moins deux réservoirs, un stockage alternant, étant donné que, d'une part, dans le cas d'une demande en oxygène comprimé accrue (DGOX), en plus du LOX provenant de la rectification, du LOX stocké de manière intermédiaire dans un réservoir est prélevé, comprimé, évaporé à contre-courant et échauffé et alors fourni en tant que produit DGOX et que, de ce fait, en contre courant, du froid est récupéré et est utilisé en vue de la production et du stockage intermédiaire de produit LIN, étant donné que, d'autre part, en cas de demande affaiblie de DGOX, suffisamment peu de LOX est extrait en tant que DGOX du système de rectification et qu'à titre de compensation, plus de LOX est stocké de manière intermédiaire.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on utilise un procédé à deux colonnes, un refroidissement de tête de la colonne sous pression étant réalisé à l'aide d'un liquide intermédiaire provenant d'une colonne basse pression et un chauffage du puits de la colonne basse pression étant effectué par échange thermique indirect avec l'air.
  5. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on utilise, en tant que système de rectification, un procédé à trois colonnes, une colonne double ayant une section haute pression et une section basse pression et une colonne auxiliaire sous une pression intermédiaire étant utilisées.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'en tant qu'air de charge, qui est amené en échange thermique indirect avec le liquide réfrigéré qui s'évapore, à partir duquel l'on extrait le produit comprimé gazeux, l'on utilise l'air en provenance du cycle frigorifique en aval de la compression ou de l'air qui a subi une post-compression en aval de la compression.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la détente fournissant du travail se fait dans au moins une turbine à expansion, la puissance sur l'arbre d'une turbine de ce genre étant utilisée en vue de l'entraínement d'un générateur produisant du courant ou d'un booster, le booster étant utilisé par exemple, en vue de la post-compression de l'air dans le cycle frigorifique.
  8. Dispositif en vue de l'exécution du procédé selon l'une quelconque des revendications 1 à 7, ayant
    un compresseur principal pour l'air de charge, la pression de sortie du compresseur d'air principal étant aussi la pression de travail d'une unité de purification subséquente,
    un conduit d'air pur en provenance de l'unité de purification allant vers un poste de compression pour l'air dans le cycle frigorifique et pour l'air pour la rectification,
    et un conduit sous pression en provenance du poste de compression, qui débouche, d'une part, dans une tubulure de conduits du cycle frigorifique avec au moins une turbine à expansion et, d'autre part, dans une dérivation pour l'air d'étranglement vers les colonnes,
    et le poste de compression étant exécuté avec au moins deux compresseurs disposés en parallèle, lesquels sont arrangés de telle sorte qu'en cas de fonctionnement à gaz un seul des compresseurs est en fonctionnement, ce compresseur livrant l'air d'étranglement et le cycle frigorifique n'étant pas alimenté en air, alors qu'en cas de fonctionnement combiné, avec la production de produit comprimé et de produit liquide, au moins deux compresseurs disposés en parallèle sont en fonctionnement et qu'en outre, pour fournir l'air d'étranglement, le cycle frigorifique est également alimenté en air et que le dispositif présente des moyens en vue du stockage de produit liquide.
  9. Dispositif selon la revendication 8, caractérisé en ce que la turbine à expansion est construite dans le passage de conduits du cycle frigorifique en tant qu'unité turbines/générateur.
  10. Dispositif selon la revendication 8, caractérisé en ce que la turbine à expansion est construite dans le passage de conduits du cycle frigorifique en tant qu'unité turbines/booster, le booster étant branché dans la tubulure de conduits du cycle frigorifique en tant que post-compresseur d'air en provenance du poste de compression.
  11. Dispositif selon la revendication 8 ou 9, caractérisé en ce que l'on dispose dans la tubulure de conduits pour l'air d'étranglement un post-compresseur pour l'air provenant du poste de compression.
  12. Utilisation du procédé selon l'une quelconque des revendications 1 à 7, et du dispositif selon l'une quelconque des revendications 8 à 11, dans une installation de fractionnement de l'air en vue de la fourniture d'une usine sidérurgique en azote et en oxygène.
EP19990106715 1998-04-08 1999-04-01 Unité de séparation de l'air à deux modes de fonctionnement Expired - Lifetime EP0949471B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990106715 EP0949471B1 (fr) 1998-04-08 1999-04-01 Unité de séparation de l'air à deux modes de fonctionnement

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19815885 1998-04-08
DE1998115885 DE19815885A1 (de) 1998-04-08 1998-04-08 Verfahren und Vorrichtung zur Erzeugung von gasförmigem Druckprodukt bei der Tieftemperaturzerlegung von Luft
EP98112276 1998-07-02
EP98112276 1998-07-02
EP19990106715 EP0949471B1 (fr) 1998-04-08 1999-04-01 Unité de séparation de l'air à deux modes de fonctionnement

Publications (2)

Publication Number Publication Date
EP0949471A1 EP0949471A1 (fr) 1999-10-13
EP0949471B1 true EP0949471B1 (fr) 2002-12-18

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Country Status (7)

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US (1) US6185960B1 (fr)
EP (1) EP0949471B1 (fr)
AT (1) ATE230098T1 (fr)
CZ (1) CZ297724B6 (fr)
DE (1) DE19815885A1 (fr)
HU (1) HUP9900988A2 (fr)
PL (1) PL191500B1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007031759A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren und Vorrichtung zur Erzeugung von gasförmigem Druckprodukt durch Tieftemperaturzerlegung von Luft
DE102007031765A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren zur Tieftemperaturzerlegung von Luft
DE102009034979A1 (de) 2009-04-28 2010-11-04 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Erzeugung von gasförmigem Drucksauerstoff
EP2312248A1 (fr) 2009-10-07 2011-04-20 Linde Aktiengesellschaft Procédé et dispositif de production d'oxygène sous pression et de crypton/xénon
EP2458311A1 (fr) 2010-11-25 2012-05-30 Linde Aktiengesellschaft Procédé et dispositif de production d'un produit d'impression gazeux par décomposition à basse température d'air
DE102010052544A1 (de) 2010-11-25 2012-05-31 Linde Ag Verfahren zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft
EP2520886A1 (fr) 2011-05-05 2012-11-07 Linde AG Procédé et dispositif de production d'un produit comprimé à oxygène gazeux par décomposition à basse température d'air
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EP2784420A1 (fr) 2013-03-26 2014-10-01 Linde Aktiengesellschaft Procédé de séparation de l'air et installation de séparation de l'air
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EP2801777A1 (fr) 2013-05-08 2014-11-12 Linde Aktiengesellschaft Installation de décomposition de l'air dotée d'un entraînement de compresseur principal
EP2963367A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procédé et dispositif cryogéniques de séparation d'air avec consommation d'énergie variable
EP2963371A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif de production d'un produit de gaz sous pression par decomposition a basse temperature d'air
EP2963370A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif cryogeniques de separation d'air
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CN102032755A (zh) * 2010-08-03 2011-04-27 苏州制氧机有限责任公司 空气分离装置
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CN113686099B (zh) * 2021-08-09 2022-08-09 北京科技大学 一种基于内压缩空分储能装置的物质回收方法

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DE102007031759A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren und Vorrichtung zur Erzeugung von gasförmigem Druckprodukt durch Tieftemperaturzerlegung von Luft
DE102007031765A1 (de) 2007-07-07 2009-01-08 Linde Ag Verfahren zur Tieftemperaturzerlegung von Luft
EP2015012A2 (fr) 2007-07-07 2009-01-14 Linde Aktiengesellschaft Procédé pour la séparation cryogénique d'air
EP2015013A2 (fr) 2007-07-07 2009-01-14 Linde Aktiengesellschaft Procédé et dispositif de production d'un gaz sous pression par séparation cryogénique d'air
DE102009034979A1 (de) 2009-04-28 2010-11-04 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Erzeugung von gasförmigem Drucksauerstoff
EP2312248A1 (fr) 2009-10-07 2011-04-20 Linde Aktiengesellschaft Procédé et dispositif de production d'oxygène sous pression et de crypton/xénon
EP2458311A1 (fr) 2010-11-25 2012-05-30 Linde Aktiengesellschaft Procédé et dispositif de production d'un produit d'impression gazeux par décomposition à basse température d'air
DE102010052544A1 (de) 2010-11-25 2012-05-31 Linde Ag Verfahren zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft
DE102010052545A1 (de) 2010-11-25 2012-05-31 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Gewinnung eines gasförmigen Druckprodukts durch Tieftemperaturzerlegung von Luft
EP2466236A1 (fr) 2010-11-25 2012-06-20 Linde Aktiengesellschaft Procédé de production d'un produit d'impression gazeux par décomposition à basse température de l'air
EP2520886A1 (fr) 2011-05-05 2012-11-07 Linde AG Procédé et dispositif de production d'un produit comprimé à oxygène gazeux par décomposition à basse température d'air
DE102011112909A1 (de) 2011-09-08 2013-03-14 Linde Aktiengesellschaft Verfahren und Vorrichtung zur Gewinnung von Stahl
EP2568242A1 (fr) 2011-09-08 2013-03-13 Linde Aktiengesellschaft Procédé et dispositif destinés à la production d'acier
EP2600090A1 (fr) 2011-12-01 2013-06-05 Linde Aktiengesellschaft Procédé et dispositif destinés à la production d'oxygène sous pression par décomposition à basse température de l'air
DE102011121314A1 (de) 2011-12-16 2013-06-20 Linde Aktiengesellschaft Verfahren zur Erzeugung eines gasförmigen Sauerstoff-Druckprodukts durch Tieftemperaturzerlegung von Luft
DE102012017488A1 (de) 2012-09-04 2014-03-06 Linde Aktiengesellschaft Verfahren zur Erstellung einer Luftzerlegungsanlage, Luftzerlegungsanlage und zugehöriges Betriebsverfahren
EP2784420A1 (fr) 2013-03-26 2014-10-01 Linde Aktiengesellschaft Procédé de séparation de l'air et installation de séparation de l'air
WO2014154339A2 (fr) 2013-03-26 2014-10-02 Linde Aktiengesellschaft Procédé de séparation d'air et installation de séparation d'air
EP2801777A1 (fr) 2013-05-08 2014-11-12 Linde Aktiengesellschaft Installation de décomposition de l'air dotée d'un entraînement de compresseur principal
DE102013017590A1 (de) 2013-10-22 2014-01-02 Linde Aktiengesellschaft Verfahren zur Gewinnung eines Krypton und Xenon enthaltenden Fluids und hierfür eingerichtete Luftzerlegungsanlage
EP2963367A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procédé et dispositif cryogéniques de séparation d'air avec consommation d'énergie variable
EP2963371A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif de production d'un produit de gaz sous pression par decomposition a basse temperature d'air
EP2963370A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif cryogeniques de separation d'air
EP2963369A1 (fr) 2014-07-05 2016-01-06 Linde Aktiengesellschaft Procede et dispositif cryogeniques de separation d'air
WO2016005031A1 (fr) 2014-07-05 2016-01-14 Linde Aktiengesellschaft Procédé et dispositif de fractionnement de l'air à basse température à consommation d'énergie variable

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CZ297724B6 (cs) 2007-03-14
DE19815885A1 (de) 1999-10-14
HU9900988D0 (en) 1999-06-28
CZ9901213A3 (cs) 2001-02-14
EP0949471A1 (fr) 1999-10-13
HUP9900988A2 (hu) 2003-06-28
ATE230098T1 (de) 2003-01-15
US6185960B1 (en) 2001-02-13
PL332409A1 (en) 1999-10-11
PL191500B1 (pl) 2006-05-31

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