EP1014020A1 - Procédé de séparation cryogénique des gaz de l'air - Google Patents
Procédé de séparation cryogénique des gaz de l'air Download PDFInfo
- Publication number
- EP1014020A1 EP1014020A1 EP99403101A EP99403101A EP1014020A1 EP 1014020 A1 EP1014020 A1 EP 1014020A1 EP 99403101 A EP99403101 A EP 99403101A EP 99403101 A EP99403101 A EP 99403101A EP 1014020 A1 EP1014020 A1 EP 1014020A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- turbine
- pressure
- air
- fraction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
- F25J3/04206—Division of the main heat exchange line in consecutive sections having different functions including a so-called "auxiliary vaporiser" for vaporising and producing a gaseous product
-
- 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
- F25J3/04278—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using external refrigeration units, e.g. closed mechanical or regenerative refrigeration units
-
- 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
-
- 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
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—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
- F25J3/04309—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 nitrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
- F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04436—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
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/20—Processes or apparatus using separation by rectification in an elevated pressure multiple column system wherein the lowest pressure column is at a pressure well above the minimum pressure needed to overcome pressure drop to reject the products to atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
- F25J2200/54—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column in the low pressure column of a double pressure main column system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
- F25J2215/54—Oxygen production with multiple pressure O2
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/40—One 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
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/50—One fluid being oxygen
-
- 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
- F25J2270/00—Refrigeration techniques used
- F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
-
- 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
- F25J2290/10—Mathematical formulae, modeling, plot or curves; Design methods
Definitions
- the present invention relates to methods and installations for cryogenic separation of gases from air.
- US-A-5758515 discloses a process for producing oxygen under pressure using a first turbine which feeds the medium pressure column a double column and a turbine powered by a booster whose all air relaxed is recycled to the main compressor of the device.
- An object of the present invention is to increase the production of liquid on a pump unit with two turbines without increasing the size of the compressor air while improving cycle performance. Another purpose of this invention is to better optimize the exchange diagram for a air separation with two turbines.
- it may include means for increasing the supply pressure of the first turbine by compared to the supply pressure of the second turbine.
- an air flow is sent to compressor 1 where it is compressed at medium pressure of the order of 5 bars before being purified in purification unit 3. It is then divided into two parts 19, 21. Part 21 constituting 20% of the air is sent to the heat exchanger 8 where it is cooled to its dew point and sent to the medium pressure column 11. The part 19 is compressed in the first stages 5 of a compressor up to an intermediate pressure of 11.5 bars; then it is compressed in last stages 6 of the compressor up to a high pressure of 35 bars.
- the air at high pressure is divided into two fractions 23, 25 of which the first is cooled to an intermediate temperature of 160 K of the line heat exchanger 8 before being divided into two.
- Part 31 is relaxed at the medium pressure in the first turbine 9 and joins the flow 21 to be sent to column 11.
- Part 29 condenses by heat exchange with a flow of oxygen which vaporizes and is divided in two to be sent (in 35, 37) in the two columns 11, 13, after expansion in a valve.
- the second high pressure air function 25 cools down to a intermediate temperature of 243 K, higher than the inlet temperature of the first turbine 9. It is then expanded in the second turbine 7 until the intermediate pressure, returned to the exchanger 8 and heated to the end hot before being mixed with air at intermediate pressure.
- Liquid nitrogen and liquid oxygen flows 41, 45 are withdrawn from the columns 11, 13. Part of the liquid oxygen 43 is pumped, pressurized by pump 17 to a pressure of 17 bars and then vaporizes in the exchanger 8.
- the air from compressor 105 eventually cools in a refrigeration unit 103 '.
- Figure 4 differs from Figure 3 in that air from the second turbine liquefies in vaporizer 353 by heat exchange with oxygen liquid pumped by pump 317. In this case, all the liquefied air is sent to the column operating at higher pressure. The vaporized oxygen heats up in the main exchanger.
- Figure 5 shows a refrigeration unit 450 which cools part of the air intended for the second turbine 407.
- Figure 6 shows a variant of Figure 1 in which air 523 intended for the first turbine 509 is boosted at a pressure higher than the high pressure by a 570 booster.
- the 570 booster can be coupled to the first or second turbine. Part of the air intended for the second turbine cools in a 550 refrigeration unit rather than in the exchanger main.
- the air 525 intended for the second turbine 507 is also boosted at a pressure less than or equal to the inlet pressure of the second turbine in a 580 booster which is coupled to the other turbine.
- two boosters 670, 680 boost the air intended for the first turbine 609.
- the air intended for the second turbine 607 is at pressure delivery of compressor 5.
- Each booster is coupled to one of the turbines
- the first column can be a single column or the middle column pressure of a double column.
- the double column can optionally be type "AZOTONNE” (registered trademark) having a head condenser of the low pressure column.
- Part of the frigories can be supplied by nitrogen expansion of one of the columns in a turbine or by air expansion in a blowing turbine.
- the boosters of Figures 6 and 7 can be replaced by boosters cold.
- the low pressure column can optionally operate at a pressure above 2 bar.
- the double column can be replaced by a triple column comprising a high pressure column, a pressure column intermediate and a low pressure column.
- the liquid to be sprayed can come from of one of these columns.
- the installation may include a mixing column.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Description
- comprimer la totalité de l'air à une moyenne pression et au moins une partie de l'air jusqu'à une pression intermédiaire entre la moyenne pression et une haute pression
- comprimer de l'air de la pression intermédiaire à la haute pression
- diviser l'air comprimé à la haute pression en une première et une deuxième fractions
- refroidir la première fraction dans un échangeur de chaleur et la détendre au moins en partie dans une première turbine
- refroidir la deuxième fraction dans l'échangeur de chaleur et la détendre au moins en partie à la pression intermédiaire dans une deuxième turbine
- réchauffer dans l'échangeur de chaleur la partie détendu de la deuxième fraction (ou la deuxième fraction détendue) et en recycler au moins une partie dans l'air à la pression intermédiaire
- envoyer de l'air de la première turbine à une première colonne , où il s'enrichit en azote en tête de colonne et s'enrichit en oxygène en cuve et
- soutirer un liquide provenant au moins partiellement d'une colonne du système et le vaporiser, éventuellement après pressurisation, dans l'échangeur de chaleur
- les pressions d'entrée de la première et deuxième turbines sont identiques ou la pression d'entrée de la première turbine est supérieure à la pression d'entrée de la deuxième turbine, de préférence supérieure d'au moins 1 bar ou même d'au moins 2 bars à la pression d'entrée de la deuxième turbine.
- la première colonne fait partie d'une double colonne ou une triple colonne
- on envoie un débit enrichi en oxygène et un débit enrichit en azote de la première colonne à une deuxième colonne de la double colonne, la première colonne opérant à une pression plus élevée que la colonne basse pression.
- on soutire un débit liquide de la colonne basse pression ou la colonne moyenne pression (ou la colonne intermédiaire dans le cas d'une triple colonne) et on le vaporise par échange de chaleur avec de l'air.
- la totalité de l'air est comprimé jusqu'à la pression intermédiaire
- la température d'aspiration de la deuxième turbine est supérieure à celle de la première turbine
- une portion non-détendue de la première fraction se condense par échange de chaleur avec un fluide soutiré de la colonne
- la portion qui se condense échange de la chaleur avec le liquide qui se vaporise
- une portion non-détendue de la deuxième fraction se condense par échange de chaleur avec un fluide soutiré de la colonne
- la portion qui se condense échange de la chaleur avec le liquide qui se vaporise.
- le débit liquide est enrichi en oxygène, en azote ou en argon.
- plusieurs débits liquides se vaporisent dans l'échangeur de chaleur.
- une fraction de l'air est refroidie dans un groupe frigorifique.
- au moins une partie de la deuxième fraction est refroidie dans un groupe frigorifique.
- la température de sortie du groupe frigorifique est la température d'entrée de la turbine.
- l'énergie d'au moins une des turbines sert à entraíner un ou plusieurs compresseurs
- un débit de la colonne bass e pression alimente une colonne argon
- un débit d'air est envoyé à la première colonne sans avoir été détendu dans une des turbines.
- au moins une première colonne de distillation d'air
- une ligne d'échange,
- des moyens pour comprimer tout l'air à une moyenne pression,
- des moyens pour comprimer au moins une partie de l'air jusqu'à une pression intermédiaire entre la moyenne pression et une haute pression,
- des moyens pour comprimer de l'air de la pression intermédiaire à la haute pression,
- des moyens pour envoyer une première et une deuxième fractions d'air à la haute pression à la ligne d'échange,
- une première turbine pour détendre au moins une partie de la première fraction, éventuellement jusqu'à la moyenne pression,
- une deuxième turbine pour détendre au moins une partie de la deuxième fraction jusqu'à la pression intermédiaire,
- des moyens pour réchauffer au moins une portion de la partie détendue de la deuxième fraction
- des moyens pour recycler au moins une partie de cette portion dans l'air à la pression intermédiaire et des moyens pour soutirer au moins un liquide d'une colonne de l'installation et des moyens pour l'envoyer à la ligne d'échange caractérisée en ce qu'elle ne comprend pas de moyens pour augmenter la pression d'alimentation de la deuxième turbine par rapport à la pression d'alimentation de la première turbine
- la figure 1 représente schématiquement une installation de séparation cryogénique de l'air selon l'invention
- les figures 2 à 7 sont des vues analogues de variantes de l'invention et
- la figure 8 est un diagramme d'échange thermique correspondant à une utilisation de l'installation de la figure 1.
Claims (35)
- Procédé de séparation cryogénique du gaz de l'air par distillation d'air dans un système de colonnes comprenant au moins une colonne (11, 13, 90) comprenant les étapes de :comprimer la totalité de l'air à une moyenne pression et au moins une partie (19, 119, 219, 319, 419, 519, 619) de l'air jusqu'à une pression intermédiaire entre la moyenne pression et une haute pressioncomprimer de l'air de la pression intermédiaire à la haute pressiondiviser l'air comprimé à la haute pression en une première et une deuxième fractions (23, 25, 123, 125, 223, 225, 323, 325, 423, 425, 523, 525, 623, 625)refroidir la première fraction dans un échangeur de chaleur (8) et la détendre au moins en partie dans une première turbine (9, 109, 209, 309, 409, 509, 609)refroidir la deuxième fraction dans l'échangeur de chaleur (8) et la détendre au moins en partie jusqu'à la pression intermédiaire dans une deuxième turbine (7, 107, 207, 307, 407, 507, 607)réchauffer au moins une portion de la partie détendue (27, 127, 227, 327, 427, 527, 627) de la deuxième fraction (ou la deuxième fraction détendue) dans l'échangeur de chaleur (8) et en recycler au moins une partie au débit d'air à la pression intermédiaire (19, 119, 219, 319, 419, 519, 619)envoyer de l'air à la moyenne pression à une première colonne (11, 111, 211, 311, 411, 511, 611); où il s'enrichit en azote en tête de colonne et s'enrichit en oxygène en cuvesoutirer un liquide d'une colonne du système et le vaporiser, éventuellement après pressurisation, dans l'échangeur de chaleur.
- Procédé selon la revendication 1 dans lequel les pression d'alimentation des première et deuxième turbines sont identiques ou la pression d'alimentation de la première turbine est supérieure, éventuellement d'au moins 1 bar, à la pression d'alimentation de la deuxième turbine.
- Procédé selon la revendication 1 ou 2 dans lequel la première colonne (11, 111) fait partie d'une double colonne ou une triple colonne
- Procédé selon la revendication 3 dans lequel la première colonne opère à une pression plus élevée qu'une deuxième colonne de la double colonne et dans lequel on envoie un débit enrichi en oxygène et un débit enrichi en azote de la première colonne à la deuxième colonne (13, 113) de la double colonne.
- Procédé selon la revendication 3 ou 4 dans lequel on soutire un débit liquide (41, 141) de la première ou la deuxième colonne et on le vaporise par échange de chaleur avec de l'air, éventuellement après l'avoir pressurisé.
- Procédé selon l'une des revendications précédentes dans lequel la totalité (119) de l'air est comprimé jusqu'à la pression intermédiaire.
- Procédé selon la revendication 6 dans lequel l'air est épuré en eau et en dioxyde de carbone à la pression intermédiaire.
- Procédé selon l'une des revendications précédentes dans lequel la température d'aspiration de la deuxième turbine (7, 107) est supérieure à celle de la première turbine (9, 109).
- Procédé selon l'une des revendications précédentes dans lequel une portion (29, 129) non-détendue de la première fraction se condense par échange de chaleur avec un fluide (41, 141) soutiré de la colonne (13, 113).
- Procédé selon la revendication 9 dans lequel la portion (29, 129) qui se condense échange de la chaleur avec un liquide qui se vaporise.
- Procédé selon l'une des revendications précédentes dans lequel une portion (29, 129) non-détendue ou détendue de la deuxième fraction se condense par échange de chaleur avec un fluide soutiré de la colonne (13, 113).
- Procédé selon la revendication 11 dans lequel la portion (29, 129) qui se condense échange de la chaleur avec le liquide qui se vaporise.
- Procédé selon l'une des revendications précédentes dans lequel le débit liquide soutiré de la colonne (11, 13, 90) est enrichi en oxygène, en azote ou en argon.
- Procédé selon la revendication 13 dans lequel plusieurs débits liquides se vaporisent par échange de chaleur avec de l'air.
- Procédé selon la revendication 14 dans lequel un premier liquide se vaporise par échange avec la portion non-détendue de la première fraction qui se condense et un deuxième liquide se vaporise par échange avec une portion détendue ou non-détendue de la deuxième fraction qui se condense.
- Procédé selon l'une des revendications précédentes dans lequel une fraction de l'air est refroidie dans un groupe frigorifique (103, 203, 303, 403, 450, 503, 603).
- Procédé selon la revendication 16 dans lequel au moins une partie de la deuxième fraction est refroidie dans un groupe frigorifique.
- Procédé selon la revendication 17 dans lequel la température de sortie du groupe frigorifique est la température d'entrée de la deuxième turbine.
- Procédé selon l'une des revendications précédentes dans lequel l'énergie d'au moins une des turbines (7, 9, 107, 109) sert à entraíner un ou plusieurs compresseurs (5, 6).
- Procédé selon la revendication 19 dans lequel la première turbine sert à entraíner un compresseur qui comprime la première fraction de la haute pression à une pression encore plus élevée avant le refroidissement de la première fraction.
- Procédé selon la revendication 19 dans lequel la première turbine et la deuxième turbine servent à entraíner des compresseurs en série qui compriment la première fraction.
- Procédé selon une des revendications précédentes dans lequel la première fraction se condense au moins partiellement lors de la détente dans la première turbine.
- Procédé selon une des revendications précédentes dans lequel la température en sortie de la deuxième turbine est proche de celle en entrée de la première turbine.
- Procédé selon l'une des revendications précédentes dans lequel un débit de la colonne basse pression alimente une colonne argon (90).
- Installation de séparation cryogénique des gaz de l'air par distillation cryogénique comprenant :au moins une première colonne de distillation d'air (13, 113, 213, 413, 513, 613)une ligne d'échange (8, 108, 208, 308, 408, 508, 608),des moyens (1, 101, 201, 301, 401, 501, 601) pour comprimer tout l'air à une moyenne pression,des moyens (5, 105, 205, 305, 405, 505, 605) pour comprimer au moins une partie de l'air jusqu'à une pression intermédiaire entre la moyenne pression et une haute pression,des moyens (6, 105, 205, 305, 405, 505, 605) pour comprimer de l'air de la pression intermédiaire à la haute pression,des moyens pour envoyer une première et une deuxième fractions d'air à la haute pression à la ligne d'échange,une première turbine (9, 109, 209, 309, 409, 509, 609) pour détendre au moins une partie de la première fraction, éventuellement jusqu'à la moyenne pression,une deuxième turbine (7, 107, 207, 307, 407, 507, 607) pour détendre au moins une partie de la deuxième fraction jusqu'à la pression intermédiaire,des moyens (8, 108, 208, 308, 408, 508, 608) pour réchauffer au moins une portion de la partie détendue de la deuxième fractiondes moyens (27, 127, 227, 327, 427, 527, 627) pour recycler au moins une partie de cette portion dans l'air à la pression intermédiairedes moyens (41, 141, 241, 341, 541, 641) pour soutirer au moins un liquide d'une colonne de l'installation et des moyens pour l'envoyer à la ligne d'échange
- Installation selon la revendication 25 comprenant ou ne comprenant pas des moyens (5, 570, 670) pour augmenter la pression d'alimentation de la première turbine par rapport à la pression d'alimentation de la deuxième turbine.
- Installation selon la revendication 25 ou 26 selon laquelle la première colonne est soit la colonne opérant à la pression plus basse soit la colonne opérant à la pression plus élevée d'une double colonne ou une colonne d'une triple colonne.
- Installation selon la revendication 27 dans lequel la première colonne opère à une pression plus élevée qu'une deuxième colonne de la double colonne et dans lequel on envoie un débit enrichi en oxygène et un débit enrichi en azote de la première colonne à la deuxième colonne (13, 113) de la double colonne.
- Installation selon la revendication 27 ou 28 comprenant des moyens pour soutirer un débit liquide (41, 141) de la première ou la deuxième colonne ou une colonne d'argon (90) et le vaporiser par échange de chaleur avec de l'air, éventuellement après l'avoir pressurisé.
- Installation selon l'une des revendications 25 à 29 dans laquelle la totalité (119) de l'air est comprimé jusqu'à la pression intermédiaire.
- Installation selon l'une des revendications 25 à 30 comprenant des moyens pour soutirer un débit liquide enrichi en oxygène, en azote ou en argon de l'installation.
- Installation selon une des revendications 25 à 31comprenant un groupe frigorifique (550) pour refroidir une partie de l'air.
- Installation selon l'une des revendications 25 à 32 comprenant une colonne argon ( 90 ).
- Installation selon l'une des revendications 25 à 33 comprenant une triple colonne comprenant une première colonne opérant à haute pression alimentée par de l'air, une colonne opérant à pression intermédiaire et une colonne opérant à basse pression.
- Installation selon la revendication 34 dans lequel les moyens pour soutirer un liquide d'une colonne sont reliées à la colonne haute pression, la colonne intermédiaire ou la colonne basse pression.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9816243A FR2787560B1 (fr) | 1998-12-22 | 1998-12-22 | Procede de separation cryogenique des gaz de l'air |
FR9816243 | 1998-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1014020A1 true EP1014020A1 (fr) | 2000-06-28 |
EP1014020B1 EP1014020B1 (fr) | 2003-10-22 |
Family
ID=9534328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99403101A Expired - Lifetime EP1014020B1 (fr) | 1998-12-22 | 1999-12-09 | Procédé de séparation cryogénique des gaz de l'air |
Country Status (7)
Country | Link |
---|---|
US (1) | US6257020B1 (fr) |
EP (1) | EP1014020B1 (fr) |
JP (1) | JP2000193365A (fr) |
CA (1) | CA2292174A1 (fr) |
DE (1) | DE69912229T2 (fr) |
ES (1) | ES2211010T3 (fr) |
FR (1) | FR2787560B1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004099690A1 (fr) | 2003-05-05 | 2004-11-18 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et installation de separation d'air par distillation cryogenique |
US7958652B2 (en) * | 2005-01-07 | 2011-06-14 | Bissell Homecare Inc. | Extraction cleaning with plenum and air outlets facilitating air flow drying |
WO2016137538A1 (fr) * | 2015-02-24 | 2016-09-01 | Praxair Technology, Inc. | Système et procédé de séparation et de liquéfaction d'air intégrées |
US10794630B2 (en) | 2017-08-03 | 2020-10-06 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and device for separating air by cryogenic distillation |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7020868B2 (en) * | 2000-11-22 | 2006-03-28 | General Electric Company | Graphic application development system for a medical imaging system |
US6543253B1 (en) * | 2002-05-24 | 2003-04-08 | Praxair Technology, Inc. | Method for providing refrigeration to a cryogenic rectification plant |
FR2865024B3 (fr) * | 2004-01-12 | 2006-05-05 | Air Liquide | Procede et installation de separation d'air par distillation cryogenique |
US7437890B2 (en) * | 2006-01-12 | 2008-10-21 | Praxair Technology, Inc. | Cryogenic air separation system with multi-pressure air liquefaction |
DE102006012241A1 (de) * | 2006-03-15 | 2007-09-20 | Linde Ag | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
FR2913759B1 (fr) | 2007-03-13 | 2013-08-16 | Air Liquide | Procede et appareil de production de gaz de l'air sous forme gazeuse et liquide a haute flexibilite par distillation cryogenique. |
US9714789B2 (en) * | 2008-09-10 | 2017-07-25 | Praxair Technology, Inc. | Air separation refrigeration supply method |
US8397535B2 (en) * | 2009-06-16 | 2013-03-19 | Praxair Technology, Inc. | Method and apparatus for pressurized product production |
US9291388B2 (en) | 2009-06-16 | 2016-03-22 | Praxair Technology, Inc. | Method and system for air separation using a supplemental refrigeration cycle |
FR2973486B1 (fr) * | 2011-03-31 | 2013-05-03 | Air Liquide | Procede de separation d'air par distillation cryogenique |
CN103759500A (zh) * | 2014-01-24 | 2014-04-30 | 浙江大川空分设备有限公司 | 一种低能耗制高纯氮的方法及装置 |
US10295252B2 (en) * | 2015-10-27 | 2019-05-21 | Praxair Technology, Inc. | System and method for providing refrigeration to a cryogenic separation unit |
FR3066809B1 (fr) * | 2017-05-24 | 2020-01-31 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et appareil pour la separation de l'air par distillation cryogenique |
CN116547488A (zh) | 2020-11-24 | 2023-08-04 | 林德有限责任公司 | 用于空气低温分离的方法和设备 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4595405A (en) * | 1984-12-21 | 1986-06-17 | Air Products And Chemicals, Inc. | Process for the generation of gaseous and/or liquid nitrogen |
DE4204172A1 (de) * | 1992-02-13 | 1993-08-19 | Linde Ag | Verfahren zur behandlung eines einsatzstromes und verfahren zur tieftemperaturzerlegung von luft |
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 |
EP0661505A1 (fr) * | 1993-12-31 | 1995-07-05 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé et installation de liquéfaction d'un gaz |
EP0757217A1 (fr) * | 1995-08-03 | 1997-02-05 | The BOC Group plc | Séparation d'air |
US5758515A (en) * | 1997-05-08 | 1998-06-02 | Praxair Technology, Inc. | Cryogenic air separation with warm turbine recycle |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5275003A (en) * | 1992-07-20 | 1994-01-04 | Air Products And Chemicals, Inc. | Hybrid air and nitrogen recycle liquefier |
GB9405072D0 (en) * | 1994-03-16 | 1994-04-27 | Boc Group Plc | Air separation |
GB9711258D0 (en) * | 1997-05-30 | 1997-07-30 | Boc Group Plc | Air separation |
-
1998
- 1998-12-22 FR FR9816243A patent/FR2787560B1/fr not_active Expired - Fee Related
-
1999
- 1999-12-09 ES ES99403101T patent/ES2211010T3/es not_active Expired - Lifetime
- 1999-12-09 DE DE69912229T patent/DE69912229T2/de not_active Expired - Lifetime
- 1999-12-09 EP EP99403101A patent/EP1014020B1/fr not_active Expired - Lifetime
- 1999-12-14 CA CA002292174A patent/CA2292174A1/fr not_active Abandoned
- 1999-12-17 US US09/466,183 patent/US6257020B1/en not_active Expired - Fee Related
- 1999-12-21 JP JP11362751A patent/JP2000193365A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4595405A (en) * | 1984-12-21 | 1986-06-17 | Air Products And Chemicals, Inc. | Process for the generation of gaseous and/or liquid nitrogen |
DE4204172A1 (de) * | 1992-02-13 | 1993-08-19 | Linde Ag | Verfahren zur behandlung eines einsatzstromes und verfahren zur tieftemperaturzerlegung von luft |
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 |
EP0661505A1 (fr) * | 1993-12-31 | 1995-07-05 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé et installation de liquéfaction d'un gaz |
EP0757217A1 (fr) * | 1995-08-03 | 1997-02-05 | The BOC Group plc | Séparation d'air |
US5758515A (en) * | 1997-05-08 | 1998-06-02 | Praxair Technology, Inc. | Cryogenic air separation with warm turbine recycle |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004099690A1 (fr) | 2003-05-05 | 2004-11-18 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et installation de separation d'air par distillation cryogenique |
US7464568B2 (en) | 2003-05-05 | 2008-12-16 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Cryogenic distillation method and system for air separation |
US7958652B2 (en) * | 2005-01-07 | 2011-06-14 | Bissell Homecare Inc. | Extraction cleaning with plenum and air outlets facilitating air flow drying |
WO2016137538A1 (fr) * | 2015-02-24 | 2016-09-01 | Praxair Technology, Inc. | Système et procédé de séparation et de liquéfaction d'air intégrées |
US10794630B2 (en) | 2017-08-03 | 2020-10-06 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and device for separating air by cryogenic distillation |
US10866024B2 (en) | 2017-08-03 | 2020-12-15 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Device and method for separating air by cryogenic distillation |
Also Published As
Publication number | Publication date |
---|---|
CA2292174A1 (fr) | 2000-06-22 |
FR2787560A1 (fr) | 2000-06-23 |
JP2000193365A (ja) | 2000-07-14 |
US6257020B1 (en) | 2001-07-10 |
EP1014020B1 (fr) | 2003-10-22 |
FR2787560B1 (fr) | 2001-02-09 |
DE69912229T2 (de) | 2004-08-05 |
DE69912229D1 (de) | 2003-11-27 |
ES2211010T3 (es) | 2004-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1014020B1 (fr) | Procédé de séparation cryogénique des gaz de l'air | |
EP0689019B1 (fr) | Procédé et installation de production d'oxygène gazeux sous pression | |
EP0628778B2 (fr) | Procédé et unité de fourniture d'un gaz sous pression à une installation consommatrice d'un constituant de l'air | |
TWI379986B (en) | System to cold compress an air stream using natural gas refrigeration | |
EP1623172B1 (fr) | Procede et installation de production de gaz de l`air sous pression par distillation cryogenique d`air | |
EP3631327B1 (fr) | Procédé et appareil pour la séparation de l'air par distillation cryogénique | |
EP0606027B1 (fr) | Procédé et installation de production d'au moins un produit gazeux sous pression et d'au moins un liquide par distillation d'air | |
FR2913759A1 (fr) | Procede et appareil de production de gaz de l'air sous forme gazeuse et liquide a haute flexibilite par distillation cryogenique. | |
EP1711765A1 (fr) | Procede et installationde de separation d'air par distillation cryogenique | |
FR2690982A1 (fr) | Procédé et installation de production d'oxygène gazeux impur par distillation d'air. | |
CA2119597A1 (fr) | Procd et installation de production d'oxygne gazeux et/ou d'azote gazeux sous pression par distillation d'air | |
EP2938413A2 (fr) | Procédé et appareil de purification d'un mélange riche en dioxyde de carbone à basse température | |
FR2821351A1 (fr) | Procede de recuperation d'ethane, mettant en oeuvre un cycle de refrigeration utilisant un melange d'au moins deux fluides refrigerants, gaz obtenus par ce procede, et installation de mise en oeuvre | |
CA2771205A1 (fr) | Procede et installation de production d'oxygene par distillation d'air | |
EP2118600A2 (fr) | Procédé et appareil de production de gaz de l'air sous forme gazeuse et liquide à haute flexibilité par distillation cryogénique | |
EP3899389A1 (fr) | Appareil et procédé de séparation d'air par distillation cryogénique | |
EP1189003B1 (fr) | Procédé et installation de séparation d'air par distillation cryogénique | |
FR2688052A1 (fr) | Procede et installation de production d'oxygene et/ou d'azote gazeux sous pression par distillation d'air. | |
CA2146831A1 (fr) | Procede et installation pour la production de l'oxygene par distillation de l'air | |
FR2724011A1 (fr) | Procede et installation de production d'oxygene par distillation cryogenique | |
EP1132700B1 (fr) | Procédé et installation de séparation d'air par distillation cryogénique | |
FR2701553A1 (fr) | Procédé et installation de production d'oxygène sous pression. | |
FR2919717A1 (fr) | Procede et appareil de separation d'air avec compression de produit | |
EP1697690A2 (fr) | Procede et installation d enrichissement d'un flux gazeux en l'un de ses constituants | |
FR2864213A1 (fr) | Procede et installation de production sous forme gazeuse et sous haute pression d'au moins un fluide choisi parmi l'oxygene, l'argon et l'azote par distillation cryogenique de l'air |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: TRANIER, JEAN-PIERRE |
|
17P | Request for examination filed |
Effective date: 20001228 |
|
AKX | Designation fees paid |
Free format text: DE ES FR GB IT |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: L'AIR LIQUIDE, S.A. A DIRECTOIRE ET CONSEIL DE SUR |
|
17Q | First examination report despatched |
Effective date: 20021001 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REF | Corresponds to: |
Ref document number: 69912229 Country of ref document: DE Date of ref document: 20031127 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20031217 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2211010 Country of ref document: ES Kind code of ref document: T3 |
|
PLBQ | Unpublished change to opponent data |
Free format text: ORIGINAL CODE: EPIDOS OPPO |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
26 | Opposition filed |
Opponent name: LINDE AKTIENGESELLSCHAFT Effective date: 20040722 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
PLCK | Communication despatched that opposition was rejected |
Free format text: ORIGINAL CODE: EPIDOSNREJ1 |
|
APBP | Date of receipt of notice of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA2O |
|
APAH | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNO |
|
APBQ | Date of receipt of statement of grounds of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA3O |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'E |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'E |
|
APBU | Appeal procedure closed |
Free format text: ORIGINAL CODE: EPIDOSNNOA9O |
|
PLBN | Opposition rejected |
Free format text: ORIGINAL CODE: 0009273 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: OPPOSITION REJECTED |
|
27O | Opposition rejected |
Effective date: 20090615 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20091222 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20091222 Year of fee payment: 11 Ref country code: GB Payment date: 20091218 Year of fee payment: 11 Ref country code: FR Payment date: 20100108 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20091222 Year of fee payment: 11 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20101209 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20110831 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110103 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 69912229 Country of ref document: DE Effective date: 20110701 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110701 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101209 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101209 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20120206 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20101210 |