BRPI0808718B1 - COOLING AND HEATING FLOW UNIT - Google Patents
COOLING AND HEATING FLOW UNIT Download PDFInfo
- Publication number
- BRPI0808718B1 BRPI0808718B1 BRPI0808718-0A BRPI0808718A BRPI0808718B1 BR PI0808718 B1 BRPI0808718 B1 BR PI0808718B1 BR PI0808718 A BRPI0808718 A BR PI0808718A BR PI0808718 B1 BRPI0808718 B1 BR PI0808718B1
- Authority
- BR
- Brazil
- Prior art keywords
- turbine
- pressure
- compressor
- air
- flow
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000470 constituent Substances 0.000 abstract description 5
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- 238000004821 distillation Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000009834 vaporization Methods 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 239000012263 liquid product Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- F25J3/04139—Combination of different types of drivers mechanically coupled to the same compressor, possibly split on multiple compressor casings
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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
- F25J3/04012—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
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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
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
- F25J3/04054—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of 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
- F25J3/04—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
- F25J3/04163—Hot end purification of the feed air
- F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
- F25J3/04175—Hot end purification of the feed air by adsorption of the impurities at a pressure of substantially more than the highest 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
- F25J3/04248—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
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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
- F25J3/04296—Claude expansion, i.e. expanded into the main or 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
- F25J3/04248—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
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
- F25J3/04381—Details relating to the work expansion, e.g. process parameter etc. using work extraction by mechanical coupling of compression and expansion so-called companders
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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
- F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
- F25J3/04393—Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion
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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
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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
- F25J2215/40—Air or oxygen enriched air, i.e. generally less than 30mol% of 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
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
- F25J2240/04—Multiple expansion turbines in parallel
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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)
Abstract
unidade de resfriamento e de aquecimento de vazões em um processo de produção de pelo menos um gás do ar por destilação criogênica pelo menos em um primeiro modo de funcionamento, uma turbina auxiliar (27) aspira uma fração gasosa da vazão de ar resfriado na linha de troca principal (7), a pressão de aspiração da turbina auxiliar é sensivelmente superior ou substancialmente igual à pressão média, e uma parte dos constituintes do ar é produzida sob forma líquida como produto final em um segundo modo de funcionamento, a vazão de ar tratado na turbina auxiliar é reduzida e a produção de líquido como produto final é diminuída.flow cooling and heating unit in a process of producing at least one cryogenic distillation air gas at least in a first mode of operation, an auxiliary turbine (27) aspirates a gaseous fraction of the cooled air flow in the main exchange (7), the suction pressure of the auxiliary turbine is substantially greater than or substantially equal to the mean pressure, and a portion of the air constituents are produced in liquid form as the end product in a second mode of operation, the treated air flow rate. in the auxiliary turbine is reduced and the production of liquid as an end product is decreased.
Description
UNIDADE DE RESFRIAMENTO E DE AQUECIMENTO DE VAZÕESFLOW COOLING AND HEATING UNIT
Os processos tradicionais de produção de gases do ar sob forma líquida ou gasosa apresentavam arquiteturas de processos distintas. Assim encontrava-se:The traditional processes of producing air gases in liquid or gaseous form had different process architectures. Thus it was found:
- um aparelho de separação do ar produzindo os constituintes principais (O2, N2, Ar) , em pressão atmosférica ou ligeiramente superior;- an air separation device producing the main constituents (O2, N2, Ar), at atmospheric pressure or slightly higher;
- uma etapa de compressão dos produtos por meio de compressores;- a step of compressing the products by means of compressors;
- um ciclo independente de liquefação de nitrogênio permitindo produzir todo ou parte de cada um dos constituintes sob forma líquida, se necessário.- an independent nitrogen liquefaction cycle allowing to produce all or part of each of the constituents in liquid form, if necessary.
Esta configuração permitia uma grande flexibilidade de utilização, pois cada uma das três funções utilizadas (separação, compressão, liquefação) podiam ser funcionadas ou paradas de maneira independente sem afetar o funcionamento das duas outras.This configuration allowed a great flexibility of use, since each of the three functions used (separation, compression, liquefaction) could be operated or stopped independently without affecting the operation of the other two.
No entanto, esta configuração sofre de uma falta de competitividade importante, tendo em conta o custo muito elevado desta arquitetura, o que exige um aparelho por função.However, this configuration suffers from an important lack of competitiveness, taking into account the very high cost of this architecture, which requires one device per function.
Os processos mais recentes de produção de gases do ar, que chamamos processos integrados, apresentam a vantagem de poder combinar em só um equipamento estas três funções. Os aparelhos ditos à bomba, incluindo os ciclos de expansão de ar ou eventualmente de nitrogênio, permitem produzir a partir do mesmo equipamento os constituintes do ar sob forma gasosa sob pressão e líquido.The most recent air gas production processes, which we call integrated processes, have the advantage of being able to combine these three functions in just one device. The devices referred to the pump, including cycles of air expansion or possibly nitrogen, make it possible to produce the constituents of air in the form of gas under pressure and liquid from the same equipment.
Entre estes, o processo com patamares de vaporização deslocados para emitir produtos sob pressão, tais comoAmong these, the process with displaced vaporization levels to emit products under pressure, such as
Petição 870190044460, de 10/05/2019, pág. 9/21Petition 870190044460, of 05/10/2019, p. 9/21
2/10 descritos na patente EP-A-0504029 ou ainda FR-A-2688052, são particularmente interessantes, pois permitem a combinação destas funções a partir de um único compressor de ar, a alta pressão. A eficácia energética do conjunto é comparável ao processo tradicional e o investimento é grandemente diminuído.2/10 described in patent EP-A-0504029 or FR-A-2688052, are particularly interesting, as they allow the combination of these functions from a single air compressor, at high pressure. The energy efficiency of the complex is comparable to the traditional process and investment is greatly reduced.
Em contrapartida a flexibilidade de produção é afetada pela combinação 3 em 1” das funções, e poderá-se mais dificilmente operar ou parar uma função sem afetar o conj unto.On the other hand, production flexibility is affected by the 3 in 1 ”combination of functions, and it will be more difficult to operate or stop a function without affecting the set.
O objetivo desta invenção é poder combinar as vantagens econômicas dos processos integrados, conservando ao mesmo tempo a adaptação e a flexibilidade oferecida pelos processos tradicionais.The purpose of this invention is to be able to combine the economic advantages of integrated processes, while retaining the adaptation and flexibility offered by traditional processes.
De acordo com a invenção, é previsto um processo de produção de pelo menos um gás do ar por destilação criogênica em um sistema de colunas compreendendo pelo menos uma coluna de pressão média operando a uma pressão média e uma coluna de pressão baixa operando a uma pressão baixa, termicamente ligadas entre si na qual em um primeiro e um segundo modo de funcionamento:According to the invention, a process for producing at least one air gas by cryogenic distillation is provided in a column system comprising at least one medium pressure column operating at medium pressure and one low pressure column operating at pressure low, thermally linked together in which in a first and a second operating mode:
a) a totalidade de uma vazão de ar comprimido é levada a uma alta pressão, pelo menos 500 kPa acima da pressão da coluna de pressão média, e depurada a esta alta pressão, chamada pressão principal;a) the entire flow of compressed air is brought to a high pressure, at least 500 kPa above the pressure of the medium pressure column, and purified at this high pressure, called the main pressure;
b) esta pressão principal é eventualmente variável em função das produções pedidas;b) this main pressure is possibly variable depending on the production requested;
c) uma primeira parte da vazão de ar em pelo menos na pressão principal é resfriada em uma linha de troca até uma temperatura intermediária e é expandida em pelo menos umac) a first part of the air flow in at least the main pressure is cooled in an exchange line to an intermediate temperature and is expanded in at least one
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3/10 primeira turbina;3/10 first turbine;
d) eventualmente uma segunda parte da vazão de ar é expandida em pelo menos uma segunda turbina (21B) cujas condições de admissão e de descarga difere de mais de 500 kPa e de mais de 15°C ou são idênticas em termos de pressão e temperatura as da primeira turbina;d) eventually a second part of the air flow is expanded in at least one second turbine (21B) whose intake and discharge conditions differ from more than 500 kPa and more than 15 ° C or are identical in terms of pressure and temperature those of the first turbine;
e) eventualmente o trabalho fornecido pela primeira ou uma terceira turbina serve pelo menos parcialmente ao trabalho requerido por um compressor;e) eventually the work provided by the first or a third turbine serves at least partially the work required by a compressor;
f) a pressão de admissão da primeira turbina é muito sensivelmente superior à pressão média e eventualmente superior à pressão principal;f) the intake pressure of the first turbine is much higher than the average pressure and possibly higher than the main pressure;
g) a pressão de descarga da primeira turbina é superior ou igual à pressão média, preferivelmente sensivelmente igual à pressão média;g) the discharge pressure of the first turbine is greater than or equal to the average pressure, preferably substantially equal to the average pressure;
h) um/o compressor comprime pelo menos uma fração da vazão de ar a uma alta pressão, superior ou igual à pressão de ar principal resfriado na linha de troca até uma temperatura criogênica (<-100°C), e retorna a vazão comprimida na linha de troca, onde pelo menos uma parte se liquidifica na extremidade fria após é enviada no sistema de colunas após expansão;h) a compressor compresses at least a fraction of the air flow at a high pressure, greater than or equal to the main air pressure cooled in the exchange line to a cryogenic temperature (<-100 ° C), and returns the compressed flow in the exchange line, where at least part of it liquefies on the cold end after it is sent in the column system after expansion;
i) um produto líquido sob pressão do sistema de colunas se vaporiza na linha de troca;i) a liquid product under pressure from the column system vaporizes in the exchange line;
e no primeiro modo de funcionamento,and in the first mode of operation,
j) uma turbina auxiliar aspira uma fração gasosa da vazão de ar resfriado na linha de troca principal;j) an auxiliary turbine draws a gaseous fraction of the flow of cooled air in the main exchange line;
k) a pressão de aspiração da turbina auxiliar é superior ou substancialmente igual à pressão principal, preferivelmente superior de pelo menos 200 kPa ouk) the suction pressure of the auxiliary turbine is greater or substantially equal to the main pressure, preferably greater than at least 200 kPa, or
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4/10 substancialmente igual à pressão principal;4/10 substantially equal to the main pressure;
l) a pressão de descarga da turbina auxiliar é superior ou substancialmente igual à pressão atmosférica, preferivelmente substancialmente igual à pressão baixa;l) the discharge pressure of the auxiliary turbine is greater than or substantially equal to atmospheric pressure, preferably substantially equal to low pressure;
m) pelo menos uma parte da vazão de ar expandido na turbina auxiliar é aquecido na linha de troca;m) at least part of the expanded air flow in the auxiliary turbine is heated in the exchange line;
n) uma parte dos constituintes do ar é produzida sob forma líquida como produto final;n) a part of the air constituents is produced in liquid form as a final product;
e no segundo modo de funcionamento,and in the second mode of operation,
o) a vazão de ar tratada na turbina auxiliar é reduzida em relação à vazão tratada na turbina auxiliar no primeiro modo de funcionamento, eventualmente a zero eo) the flow of air treated in the auxiliary turbine is reduced in relation to the flow treated in the auxiliary turbine in the first operating mode, possibly to zero and
p) a produção de líquido como produto final é diminuída, em relação à produção de líquido como produto final no primeiro modo de funcionamento, eventualmente à zero.p) the production of liquid as a final product is reduced, in relation to the production of liquid as a final product in the first mode of operation, possibly at zero.
De acordo com de outros aspectos facultativos:According to other optional aspects:
- todas as turbinas são travadas por um compressor de ar;- all turbines are stopped by an air compressor;
- pelo menos um compressor acoplado a uma das turbinas aspira em temperatura ambiente;- at least one compressor coupled to one of the turbines aspirates at room temperature;
- de todos os compressores, só o compressor ligado mecanicamente à primeira turbina tem uma temperatura de aspiração abaixo de -100°C;- of all compressors, only the compressor mechanically connected to the first turbine has a suction temperature below -100 ° C;
- a temperatura de aspiração da primeira turbina difere de mais de 15°C, da temperatura de pseudovaporização do oxigênio;- the suction temperature of the first turbine differs by more than 15 ° C from the temperature of pseudo-vaporization of oxygen;
- a vazão de ar principal penetrante é reduzida, durante o segundo modo, preferivelmente uma vazão pelo menos igual à redução durante o segundo modo da vazão de ar- the main penetrating air flow is reduced, during the second mode, preferably a flow rate at least equal to the reduction during the second air flow mode
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5/10 enviada à turbina auxiliar;5/10 sent to the auxiliary turbine;
- a variação da vazão de ar principal é assegurada pelas palhetas variáveis de um compressor;- the variation of the main air flow is ensured by the variable vanes of a compressor;
- a variação de vazão de ar principal é assegurada pelo funcionamento e/ou a parada de um compressor de ar auxiliar;- the variation of the main air flow is ensured by the operation and / or the stop of an auxiliary air compressor;
- a pressão de ar principal varia entre o primeiro modo e o segundo modo;- the main air pressure varies between the first mode and the second mode;
- a primeira parte do ar é comprimida a uma pressão superior à pressão principal a montante da primeira turbina de modo que retorna na primeira turbina substancialmente a uma pressão superior à pressão principal;- the first part of the air is compressed at a pressure higher than the main pressure upstream of the first turbine so that it returns to the first turbine substantially at a pressure higher than the main pressure;
- a temperatura de aspiração da turbina auxiliar é mais elevada que a temperatura de aspiração da primeira turbina;- the suction temperature of the auxiliary turbine is higher than the suction temperature of the first turbine;
- o ar expandido na turbina auxiliar é rejeitado na atmosfera.- the expanded air in the auxiliary turbine is discharged into the atmosphere.
De acordo com outro aspecto da invenção, é previsto uma unidade de resfriamento e aquecimento de vazões destinadas e fornecendo um sistema de colunas de separação de ar compreendendo uma linha de troca, uma primeira turbina, uma turbina auxiliar, um compressor, a linha de troca compreendendo:According to another aspect of the invention, a flow cooling and heating unit is provided for and providing an air separation column system comprising an exchange line, a first turbine, an auxiliary turbine, a compressor, the exchange line comprising:
i) pelo menos uma passagem para receber uma primeirai) at least one ticket to receive a first ticket
compressor, pelo menos uma passagem ligada ao compressor sendo ligada à primeira turbina,compressor, at least one passage connected to the compressor being connected to the first turbine,
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6/10 iii) pelo menos duas passagens para receber pelo menos dois fluidos (35,37) que se aquecem, iv) pelo menos uma passagem para receber uma segunda vazão de ar depurado, pelo menos uma passagem para receber a segunda vazão de ar depurado sendo ligada à aspiração da turbina auxiliar e a descarga da turbina auxiliar sendo ligada a pelo menos uma passagem de ar a ser aquecido.6/10 iii) at least two passages to receive at least two fluids (35,37) that heat up, iv) at least one pass to receive a second flow of purified air, at least one passage to receive the second flow of air purified being connected to the suction of the auxiliary turbine and the discharge of the auxiliary turbine being connected to at least one passage of air to be heated.
A unidade pode ser disposta de modo que em operação, uma das condições seguintes é preenchida:The unit can be arranged so that in operation, one of the following conditions is fulfilled:
à temperatura de aspiração da primeira turbinaat the suction temperature of the first turbine
v) a temperatura de descarga do compressor é superior à temperatura de descarga da turbina auxiliar.v) the discharge temperature of the compressor is higher than the discharge temperature of the auxiliary turbine.
Propõe-se aqui melhorar a flexibilidade de produção dos processos do tipo mono-máquinas, tais como descritos previamente:It is proposed here to improve the production flexibility of the mono-machine type processes, as previously described:
- seja oferecendo a possibilidade de reduzir ou mesmo anular a produção de líquido das unidades utilizando um processo tal como descrito na EP-A-0504029;- either offering the possibility to reduce or even cancel the liquid production of the units using a process as described in EP-A-0504029;
- seja oferecendo a possibilidade de produzir de maneira eficaz os líquidos com processos tais como foram descritos na FR-A-2688052;- either by offering the possibility to efficiently produce liquids with processes as described in FR-A-2688052;
- e oferecendo a possibilidade de fazer um ou outro de maneira reversível, e energeticamente eficaz nos dois casos.- and offering the possibility of making one or the other in a reversible way, and energy efficient in both cases.
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7/107/10
Este processo utiliza um sistema de destilação conhecido (colunas de pressão média e de pressão baixa termicamente ligadas, eventualmente uma coluna à pressão intermediária e/ou uma coluna de mistura e/ou uma coluna de mistura de argônio, etc.) e coloca-se pelo menos duas turbinas de expansão.This process uses a known distillation system (medium pressure and low pressure columns thermally bonded, possibly an intermediate pressure column and / or a mixing column and / or an argon mixing column, etc.) and is placed at least two expansion turbines.
Duas vazões estão em pressão substancialmente igual se as suas pressões diferem somente pelas perdas de carga.Two flows are at substantially equal pressure if their pressures differ only due to head losses.
A fração gasosa da vazão de ar aspirado pela turbina auxiliar é previamente expandida na primeira e/ou na segunda turbina, eventualmente enviada à coluna de pressão média e retirada da coluna de pressão média antes de ser enviada à turbina auxiliar, após ter sido aquecido na linha de troca principal.The gas fraction of the flow of air aspirated by the auxiliary turbine is previously expanded in the first and / or second turbine, eventually sent to the medium pressure column and removed from the medium pressure column before being sent to the auxiliary turbine, after being heated in the main exchange line.
No primeiro modo de funcionamento, a produção de produto líquido, todos os produtos finais confundidos, constitui 1%, ou 2% ou 5% da vazão de ar enviado às colunas (ou à coluna se só a coluna de pressão média é alimentada em ar).In the first mode of operation, the production of liquid product, all final products confused, constitutes 1%, or 2% or 5% of the air flow sent to the columns (or to the column if only the medium pressure column is fed with air ).
A invenção será descrita em mais detalhe referindo-se às figuras, que mostram as instalações de separação de ar capazes de funcionar de acordo com o processo da invenção.The invention will be described in more detail with reference to the figures, which show the air separation installations capable of operating according to the process of the invention.
Na Figura 1, uma vazão de ar comprimido 1 provindo de um compressor principal é comprimida em um compressor 3 a uma alta pressão pelo menos 500 kPa acima da pressão da coluna de pressão média, esta alta pressão sendo chamada pressão principal. Esta pressão principal pode, por exemplo, estar entre 1000 e 2500 kPa. A esta pressão principal a vazão 5 é em seguida depurada em água e dióxido de carbono (não ilustrado). A vazão total de ar comprimido e depuradoIn Figure 1, a flow of compressed air 1 from a main compressor is compressed into a compressor 3 at a high pressure at least 500 kPa above the pressure of the medium pressure column, this high pressure being called the main pressure. This main pressure can, for example, be between 1000 and 2500 kPa. At this main pressure, the flow rate 5 is then purified with water and carbon dioxide (not shown). The total flow of compressed and purified air
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8/10 é enviada a uma linha de troca 7 onde se resfria até uma temperatura T1. A esta temperatura, a vazão 5 é dividida em duas para formar uma vazão 9 que se liquidifica e é enviada ao sistema de colunas e uma vazão 11. A vazão 11 deixa a linha de troca 7 à temperatura T1 diferente de mais de ±5°C da temperatura de vaporização do oxigênio pressurizado 33 e é enviada a um compressor frio 13 para produzir uma vazão 15 a uma pressão muito sensivelmente superior à pressão média e eventualmente superior à pressão principal. A vazão 15 a uma temperatura T2 de saída do compressor frio se resfria na linha de troca 7 até uma temperatura T3 mais elevada que T1. A esta temperatura T3, a vazão 15 é dividida em duas vazões 17, 19. A vazão 17 é expandida em uma turbina 21 a partir da temperatura T3 próxima da temperatura de pseudovaporização do oxigênio pressurizado 33.8/10 is sent to an exchange line 7 where it is cooled to a temperature T1. At this temperature, flow rate 5 is divided into two to form a flow rate 9 which becomes liquid and sent to the column system and flow rate 11. Flow rate 11 leaves exchange line 7 at temperature T1 different from more than ± 5 ° C of the vaporization temperature of the pressurized oxygen 33 and is sent to a cold compressor 13 to produce a flow 15 at a pressure much higher than the average pressure and possibly higher than the main pressure. The flow 15 at a temperature T2 of the cold compressor outlet is cooled in the exchange line 7 to a temperature T3 higher than T1. At this temperature T3, the flow 15 is divided into two flows 17, 19. The flow 17 is expanded in a turbine 21 from the temperature T3 close to the pseudo-vaporization temperature of the pressurized oxygen 33.
A pressão de aspiração da turbina 21 é igual à pressão de descarga do compressor 13, portanto, muito sensivelmente superior à pressão média (superior pelo menos 500 kPa) e eventualmente superior à pressão principal e a pressão de descarga é superior ou igual à pressão média, preferivelmente sensivelmente igual à pressão média. A vazão expandida até uma pressão superior ou igual à pressão média, preferivelmente sensivelmente igual à pressão média é enviada ao sistema de coluna como vazão 25. A vazão 19 prossegue seu resfriamento na linha de troca e é enviada sob forma gasosa ao sistema de colunas.The suction pressure of the turbine 21 is equal to the discharge pressure of the compressor 13, therefore, much higher than the average pressure (higher than at least 500 kPa) and possibly higher than the main pressure and the discharge pressure is greater than or equal to the average pressure , preferably roughly equal to the average pressure. The flow expanded to a pressure greater than or equal to the average pressure, preferably substantially equal to the average pressure is sent to the column system as flow 25. Flow 19 continues to cool in the exchange line and is sent in gaseous form to the column system.
O compressor frio 13 é acionado pela turbina 21.The cold compressor 13 is driven by the turbine 21.
Uma vazão de nitrogênio residual se aquece na linha de troca.A flow of residual nitrogen heats up in the exchange line.
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9/109/10
Uma vazão de oxigênio líquido 35 pressurizada em uma bomba 33 vaporiza na linha de troca 7.A flow of liquid oxygen 35 pressurized in a pump 33 vaporizes in the exchange line 7.
Opcionalmente um líquido do sistema de colunas, além do oxigênio líquido, é pressurizado, vaporizado na linha de troca 7 e serve seguidamente de produto sob pressão.Optionally, a liquid from the column system, in addition to liquid oxygen, is pressurized, vaporized in the exchange line 7 and then serves as a product under pressure.
De acordo com um primeiro modo de funcionamento, uma fração de ar 25 é tomada no ar depurado 5 à pressão principal e é resfriado na linha de troca 7. A uma temperatura T4 inferior a -100°C e superior a T2, a fração 25 é enviada a uma turbina 27 onde se distende até uma temperatura T5 formando uma vazão de ar 29. Esta vazão de ar se aquece na linha de troca.According to a first mode of operation, a fraction of air 25 is taken in the purified air 5 at the main pressure and is cooled in the exchange line 7. At a temperature T4 below -100 ° C and above T2, the fraction 25 it is sent to a turbine 27 where it extends to a temperature T5 forming an air flow 29. This air flow heats up in the exchange line.
Um produto líquido é retirado do sistema de colunas como produto final 32. No exemplo o único produto do aparelho é o oxigênio líquido, mas outros produtos podem evidentemente ser produzidos sob forma líquida.A liquid product is removed from the speaker system as an end product 32. In the example, the only product in the apparatus is liquid oxygen, but other products can of course be produced in liquid form.
De acordo com um segundo modo de funcionamento a vazão de ar 25 tratada na turbina auxiliar 27 é reduzida eventualmente a zero, a vazão de ar principal entrando 1 é reduzida de uma vazão pelo menos igual à redução da vazão de ar enviado à turbina auxiliar 27 e a produção de líquido 37 é diminuída eventualmente a zero.According to a second mode of operation the air flow 25 treated in the auxiliary turbine 27 is eventually reduced to zero, the main air flow entering 1 is reduced by a flow at least equal to the reduction in the air flow sent to the auxiliary turbine 27 and the production of liquid 37 is eventually decreased to zero.
Esta variação da vazão de ar 1 entre os dois modos de funcionamento é assegurada pelas palhetas variáveis de um compressor e/ou pelo funcionamento e/ou a parada de um compressor de ar auxiliar.This variation in air flow 1 between the two operating modes is ensured by the variable vanes of a compressor and / or by the operation and / or the stop of an auxiliary air compressor.
Estes dois modos de funcionamento podem constituir os únicos modos de funcionamento do aparelho ou pode ter outros modos de funcionamento.These two modes of operation can be the only modes of operation of the device or can have other modes of operation.
Pode ter uma etapa de compressão (compressor 3B) entreThere may be a compression step (compressor 3B) between
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10/10 a sobrepressão quente que conduz o ar à pressão principal e a sobrepressão fria, de modo que a sobrepressão fria se efetua a partir de uma pressão acima da pressão principal.10/10 the hot overpressure that leads the air to the main pressure and the cold overpressure, so that the cold overpressure is effected from a pressure above the main pressure.
De preferência, a turbina 21 é acionada pelo 5 compressor 13 e o compressor 3 aciona a turbina auxiliar 27.Preferably, turbine 21 is driven by compressor 5 and compressor 3 drives auxiliary turbine 27.
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Claims (3)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| FR0753788A FR2913759B1 (en) | 2007-03-13 | 2007-03-13 | METHOD AND APPARATUS FOR GENERATING GAS AIR FROM THE AIR IN A GAS FORM AND LIQUID WITH HIGH FLEXIBILITY BY CRYOGENIC DISTILLATION |
| FR0753788 | 2007-03-13 | ||
| PCT/FR2008/050418 WO2008129198A2 (en) | 2007-03-13 | 2008-03-12 | Method and apparatus for the production of gas from air in highly flexible gaseous and liquid form by cryogenic distillation |
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| BRPI0808718A2 BRPI0808718A2 (en) | 2014-08-12 |
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| US20110197630A1 (en) * | 2007-08-10 | 2011-08-18 | L'air Liquide, Societe Anonyme Pour L'etude Et L'e Xploitation Des Procedes Georges Claude | Process and Apparatus for the Separation of Air by Cryogenic Distillation |
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| FR2973486B1 (en) * | 2011-03-31 | 2013-05-03 | Air Liquide | AIR SEPARATION METHOD BY CRYOGENIC DISTILLATION |
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| FR2692664A1 (en) * | 1992-06-23 | 1993-12-24 | Lair Liquide | Process and installation for producing gaseous oxygen under pressure. |
| US5355681A (en) * | 1993-09-23 | 1994-10-18 | Air Products And Chemicals, Inc. | Air separation schemes for oxygen and nitrogen coproduction as gas and/or liquid products |
| US5475980A (en) * | 1993-12-30 | 1995-12-19 | L'air Liquide, Societe Anonyme Pour L'etude L'exploitation Des Procedes Georges Claude | Process and installation for production of high pressure gaseous fluid |
| GB9515907D0 (en) * | 1995-08-03 | 1995-10-04 | Boc Group Plc | Air separation |
| JP2875206B2 (en) * | 1996-05-29 | 1999-03-31 | 日本エア・リキード株式会社 | High purity nitrogen production apparatus and method |
| US5678425A (en) * | 1996-06-07 | 1997-10-21 | Air Products And Chemicals, Inc. | Method and apparatus for producing liquid products from air in various proportions |
| FR2787560B1 (en) * | 1998-12-22 | 2001-02-09 | Air Liquide | PROCESS FOR CRYOGENIC SEPARATION OF AIR GASES |
| US6808364B2 (en) * | 2002-12-17 | 2004-10-26 | General Electric Company | Methods and apparatus for sealing gas turbine engine variable vane assemblies |
| FR2851330B1 (en) * | 2003-02-13 | 2006-01-06 | Air Liquide | PROCESS AND PLANT FOR THE PRODUCTION OF A GASEOUS AND HIGH PRESSURE PRODUCTION OF AT LEAST ONE FLUID SELECTED AMONG OXYGEN, ARGON AND NITROGEN BY CRYOGENIC DISTILLATION OF AIR |
| FR2854682B1 (en) * | 2003-05-05 | 2005-06-17 | Air Liquide | METHOD AND INSTALLATION OF AIR SEPARATION BY CRYOGENIC DISTILLATION |
| FR2854683B1 (en) * | 2003-05-05 | 2006-09-29 | Air Liquide | METHOD AND INSTALLATION FOR PRODUCING PRESSURIZED AIR GASES BY AIR CRYOGENIC DISTILLATION |
| US6962062B2 (en) * | 2003-12-10 | 2005-11-08 | L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Proédés Georges Claude | Process and apparatus for the separation of air by cryogenic distillation |
| FR2865024B3 (en) * | 2004-01-12 | 2006-05-05 | Air Liquide | METHOD AND INSTALLATION OF AIR SEPARATION BY CRYOGENIC DISTILLATION |
| US7272954B2 (en) * | 2004-07-14 | 2007-09-25 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Proceded Georges Claude | Low temperature air separation process for producing pressurized gaseous product |
| EP1726900A1 (en) * | 2005-05-20 | 2006-11-29 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and apparatus for the separation of air by cryogenic distillation |
-
2007
- 2007-03-13 FR FR0753788A patent/FR2913759B1/en not_active Expired - Fee Related
-
2008
- 2008-03-12 WO PCT/FR2008/050418 patent/WO2008129198A2/en not_active Ceased
- 2008-03-12 BR BRPI0808718-0A patent/BRPI0808718B1/en not_active IP Right Cessation
- 2008-03-12 JP JP2009553189A patent/JP5032596B2/en not_active Expired - Fee Related
- 2008-03-12 CN CN2008800071781A patent/CN101883963B/en not_active Expired - Fee Related
- 2008-03-12 RU RU2009137758/06A patent/RU2479806C2/en not_active IP Right Cessation
- 2008-03-12 EP EP08775715.9A patent/EP2118601B1/en not_active Not-in-force
- 2008-03-12 US US12/530,826 patent/US20110011130A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN101883963B (en) | 2013-09-18 |
| BRPI0808718A2 (en) | 2014-08-12 |
| JP2010531424A (en) | 2010-09-24 |
| WO2008129198A3 (en) | 2011-07-07 |
| EP2118601A2 (en) | 2009-11-18 |
| RU2009137758A (en) | 2011-04-20 |
| RU2479806C2 (en) | 2013-04-20 |
| FR2913759B1 (en) | 2013-08-16 |
| FR2913759A1 (en) | 2008-09-19 |
| WO2008129198A2 (en) | 2008-10-30 |
| JP5032596B2 (en) | 2012-09-26 |
| EP2118601B1 (en) | 2017-12-20 |
| US20110011130A1 (en) | 2011-01-20 |
| CN101883963A (en) | 2010-11-10 |
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