DE102011113666A1 - Method and device for producing two purified partial air streams - Google Patents
Method and device for producing two purified partial air streams Download PDFInfo
- Publication number
- DE102011113666A1 DE102011113666A1 DE102011113666A DE102011113666A DE102011113666A1 DE 102011113666 A1 DE102011113666 A1 DE 102011113666A1 DE 102011113666 A DE102011113666 A DE 102011113666A DE 102011113666 A DE102011113666 A DE 102011113666A DE 102011113666 A1 DE102011113666 A1 DE 102011113666A1
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- partial air
- air flow
- low
- partial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
- F25J3/04854—Safety aspects of operation
- F25J3/0486—Safety aspects of operation of vaporisers for oxygen enriched liquids, e.g. purging of liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
- F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—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
- F25J3/04157—Afterstage cooling and so-called "pre-cooling" of the feed air upstream the air purification unit and main heat exchange line
-
- 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
-
- 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
- F25J3/04181—Regenerating the adsorbents
-
- 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
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—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
- F25J3/04436—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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
- F25J3/04878—Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
- F25J3/04884—Arrangement of reboiler-condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04951—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network
- F25J3/04957—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network and inter-connecting equipments upstream of the fractionation unit (s), i.e. at the "front-end"
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
- F25J2205/32—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as direct contact cooling tower to produce a cooled gas stream, e.g. direct contact after cooler [DCAC]
-
- 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
- F25J2205/34—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes as evaporative cooling tower to produce chilled water, e.g. evaporative water chiller [EWC]
-
- 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
- F25J2205/62—Purifying more than one feed stream in multiple adsorption vessels, e.g. for two feed streams at different pressures
-
- 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
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/04—Compressor cooling arrangement, e.g. inter- or after-stage cooling or condensate removal
-
- 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
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/40—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/52—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen enriched compared to air ("crude 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
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/04—Down-flowing type boiler-condenser, i.e. with evaporation of a falling liquid film
-
- 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
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
Das Verfahren und die Vorrichtung dienen zur Erzeugung zweier gereinigter Luftteilströme unter verschiedenen Drücken. Ein Gesamtluftstrom (1) wird auf einen ersten Gesamtluftdruck verdichtet. Der verdichtete Gesamtluftstrom (5) wird unter dem ersten Gesamtluftdruck durch Wärmeaustausch (4, 6) mit Kühlwasser gekühlt. Der Wärmeaustausch mit Kühlwasser zur Kühlung des Gesamtluftstroms (5) wird mindestens teilweise als direkter Wärmeaustausch in einem ersten Die Kondensator-Verdampfer für die Niederdrucksäule (der Niederdrucksäulen (6) durchgeführt. Der gekühlte Gesamtluftstrom (9) wird in einen ersten Luftteilstrom (10) und einen zweiten Luftteilstrom (11) aufgeteilt. Der erste Luftteilstrom (10) wird unter dem ersten Gesamtluftdruck in einer ersten Reinigungseinrichtung (18) gereinigt und als erster gereinigter Luftteilstrom (19) gewonnen. Der zweite Luftteilstrom (11) wird auf einen höheren Druck nachverdichtet (12), der höher als der erste Gesamtluftdruck ist. Der nachverdichtete zweite Luftteilstrom (14) wird durch Wärmeaustausch (4, 6) mit Kühlwasser gekühlt. Der gekühlte zweite Luftteilstrom (17) wird unter dem höheren Druck in einer zweiten Reinigungseinrichtung (30) gereinigt und als zweiter gereinigter Luftteilstrom (31) gewonnen.The method and apparatus serve to produce two purified partial air streams at different pressures. A total air flow (1) is compressed to a first total air pressure. The compressed total air flow (5) is cooled below the first total air pressure by heat exchange (4, 6) with cooling water. The heat exchange with cooling water for cooling the total air flow (5) is at least partially carried out as direct heat exchange in a first condenser-evaporator for the low-pressure column (6) The cooled total air flow (9) is introduced into a first partial air flow (10) and The first partial air flow (10) is purified under the first total air pressure in a first purification device (18) and obtained as the first purified partial air flow (19). 12) which is higher than the first total air pressure The recompressed second partial air stream (14) is cooled by heat exchange (4, 6) with cooling water The cooled second partial air stream (17) is cleaned under the higher pressure in a second cleaning device (30) and recovered as a second purified partial air stream (31).
Description
Die Erfindung betrifft ein Verfahren zur Erzeugung zweier gereinigter Luftteilströme unter verschiedenen Drücken.The invention relates to a method for producing two purified partial air streams at different pressures.
Als ”Kondensator-Verdampfer” wird ein Wärmetauscher bezeichnet, in dem ein erster kondensierender Fluidstrom in indirekten Wärmeaustausch mit einem zweiten verdampfenden Fluidstrom tritt. Jeder Kondensator-Verdampfer weist einen Verflüssigungsraum und einen Verdampfungsraum auf, die aus Verflüssigungspassagen beziehungsweise Verdampfungspassagen bestehen. In dem Verflüssigungsraum wird die Kondensation (Verflüssigung) eines ersten Fluidstroms durchgeführt, in dem Verdampfungsraum die Verdampfung eines zweiten Fluidstroms. Verdampfungs- und Verflüssigungsraum werden durch Gruppen von Passagen gebildet, die untereinander in Wärmeaustauschbeziehung stehen.The term "condenser-evaporator" refers to a heat exchanger in which a first condensing fluid stream undergoes indirect heat exchange with a second evaporating fluid stream. Each condenser-evaporator has a liquefaction space and an evaporation space, which consist of liquefaction passages or evaporation passages. In the liquefaction space, the condensation (liquefaction) of a first fluid flow is performed, in the evaporation space the evaporation of a second fluid flow. Evaporation and liquefaction space are formed by groups of passages that are in heat exchange relationship with each other.
Ein Kondensator-Verdampfer kann beispielsweise als Fallfilm- oder Badverdampfer ausgebildet sein. Bei einem ”Fallfilmverdampfer” strömt das zu verdampfende Fluid von oben nach unten durch den Verdampfungsraum und wird dabei teilweise verdampft. Bei einem ”Badverdampfer” (gelegentlich auch ”Umlaufverdampfer” oder Thermosiphon-Verdampfer” genannt) steht der Wärmetauscherblock in einem Flüssigkeitsbad des zu verdampfenden Fluids. Dieses strömt mittels des Thermosiphon-Effekts von unten nach oben durch die Verdampfungspassagen und tritt oben als Zwei-Phasen-Gemisch wieder aus. Die verbleibende Flüssigkeit strömt außerhalb des Wärmetauscherblocks in das Flüssigkeitsbad zurück. (Bei einem Badverdampfer kann der Verdampfungsraum sowohl die Verdampfungspassagen als auch den Außenraum um den Wärmetauscherblock umfassen.)A condenser-evaporator may be formed, for example, as a falling film or bath evaporator. In a "falling-film evaporator", the fluid to be evaporated flows from top to bottom through the evaporation space and is partially evaporated. In a "bath evaporator" (sometimes called "circulation evaporator" or thermosiphon evaporator "), the heat exchanger block is in a liquid bath of the fluid to be evaporated. This flows by means of the thermosiphon effect from bottom to top through the evaporation passages and exits the top again as a two-phase mixture. The remaining liquid flows outside the heat exchanger block back into the liquid bath. (In a bath evaporator, the evaporation space may include both the evaporation passages and the outside space around the heat exchanger block.)
Die Kondensator-Verdampfer für die Niederdrucksäule (der Niederdrucksäulen-Zwischenverdampfer und der Niederdrucksäulen-Sumpfverdampfer) können im Inneren der Niederdrucksäule angeordnet sein oder einem oder mehreren separaten Behältern.The condenser-evaporators for the low-pressure column (the low-pressure column intermediate evaporator and the low-pressure column bottom evaporator) may be arranged in the interior of the low-pressure column or one or more separate containers.
Aus
Der Erfindung liegt die Aufgabe zugrunde, ein derartiges Verfahren und eine entsprechende Vorrichtung so zu gestalten, dass sie energetisch besonders günstig zu betreiben sind.The invention has for its object to make such a method and a corresponding device so that they are energetically particularly favorable to operate.
Diese Aufgabe wird dadurch die Merkmale des Patentanspruchs 1 gelöst.This object is achieved by the features of claim 1.
Bei der Erfindung wird der Gesamtluftstrom vor seiner Aufteilung auf eine besonders niedrige Temperatur abgekühlt, die mit konventionellen Nach- oder Zwischenkühlern üblicherweise nicht erreicht wird. Mit dieser besonders niedrigen Temperatur tritt dann der zweite Luftteilstrom in die Nachverdichtung ein. Die entsprechende Volumenreduzierung am Eintritt des Nachverdichters bewirkt eine spürbare Verbesserung des Wirkungsgrads der Nachverdichtung und spart dadurch Energie.In the invention, the total air stream is cooled before its division to a particularly low temperature, which is usually not achieved with conventional aftercoolers or intercoolers. With this particularly low temperature then enters the second partial air stream in the recompression. The corresponding volume reduction at the inlet of the post-compressor causes a noticeable improvement in the efficiency of the re-compression and thus saves energy.
Grundsätzlich kann die Kühlung des Gesamtluftstroms durch indirekten Wärmeaustausch mit besonders kaltem Kühlwasser bewirkt werden. Günstiger ist es jedoch, wenn der Wärmeaustausch mit Kühlwasser zur Kühlung des Gesamtluftstroms mindestens teilweise als direkter Wärmeaustausch in einem ersten Die Kondensator-Verdampfer für die Niederdrucksäule (der Niederdrucksäulen durchgeführt wird. Vor den ersten Die Kondensator-Verdampfer für die Niederdrucksäule (der Niederdrucksäulen kann ein konventioneller Nachkühler geschaltet sein, in dem der Gesamtluftstrom nach seiner Verdichtung auf den ersten Gesamtluftdruck durch indirekten Wärmeaustausch mit Kühlwasser auf eine Temperatur gekühlt wird, die regelmäßig höher als die Umgebungstemperatur ist. Die Kühlung kann aber auch ausschließlich in dem Die Kondensator-Verdampfer für die Niederdrucksäule (der Niederdrucksäulen vorgenommen werden.In principle, the cooling of the total air flow can be effected by indirect heat exchange with particularly cold cooling water. It is more favorable, however, if the heat exchange with cooling water for cooling the total air flow is at least partially carried out as a direct heat exchange in a first The condenser-evaporator for the low-pressure column (the low-pressure column.) Before the first The condenser-evaporator for the low-pressure column (the low-pressure columns can Conventional aftercooler, in which the total air flow is cooled after its compression to the first total air pressure by indirect heat exchange with cooling water to a temperature which is regularly higher than the ambient temperature (the low-pressure columns are made.
Auch der Wärmeaustausch mit Kühlwasser zur Kühlung des nachverdichteten zweiten Luftteilstroms (
Alle Verdichtungsschritte können mehrstufig ausgeführt sein und weisen dann vorzugsweise je eine konventionelle Zwischenkühlung zwischen jedem Paar von aufeinander folgenden Stufen auf.All the compression steps can be multi-stage and then preferably each have a conventional intermediate cooling between each pair of successive stages.
Die Erfindung betrifft außerdem die Anwendung des obigen Verfahrens zur Bereitstellung von Einsatzluft auf zwei unterschiedlichen Druckniveaus für eine Tieftemperatur-Luftzerlegung gemäß Patentanspruch 4.The invention also relates to the use of the above method for providing feed air at two different pressure levels for a cryogenic air separation according to claim 4.
Die Erfindung betrifft außerdem eine Vorrichtung gemäß Patentanspruch 5. Die erfindungsgemäße Vorrichtung kann durch Vorrichtungsmerkmale ergänzt werden, die den Merkmalen der abhängigen Verfahrensansprüche entsprechen.The invention also relates to a device according to
Die Erfindung sowie weitere Einzelheiten der Erfindung werden im Folgenden anhand eines in
Atmosphärische Luft
Der zweite Luftteilstrom
Der erste Luftteilstrom wird in einer ersten Reinigungseinrichtung
Die erste Hochdrucksäule
Der vorgekühlte zweite Luftteilstrom
Der mindestens teilweise, vorzugsweise im Wesentlichen vollständig kondensierte dritte Teilstrom
Stickstoffreiches Kopfgas
Ein zweiter Teil
Stickstoffreiches Kopfgas
Die Sumpfflüssigkeiten
Die Sumpfflüssigkeit
Eine flüssige Zwischenfraktion
Am Kopf der Niederdrucksäule
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 342436 A2 [0005] EP 342436 A2 [0005]
Claims (5)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011113666A DE102011113666A1 (en) | 2011-09-20 | 2011-09-20 | Method and device for producing two purified partial air streams |
PCT/EP2012/003945 WO2013053425A2 (en) | 2011-09-20 | 2012-09-20 | Method and device for generating two purified partial air streams |
KR1020147010644A KR101947112B1 (en) | 2011-09-20 | 2012-09-20 | Method and device for generating two purified partial air streams |
AU2012323524A AU2012323524B2 (en) | 2011-09-20 | 2012-09-20 | Method and device for generating two purified partial air streams |
EP12766000.9A EP2758735A2 (en) | 2011-09-20 | 2012-09-20 | Method and device for generating two purified partial air streams |
US14/345,717 US10222120B2 (en) | 2011-09-20 | 2012-09-20 | Method and device for generating two purified partial air streams |
CN201280046020.1A CN104185767B (en) | 2011-09-20 | 2012-09-20 | For the method and apparatus producing two strands of partial air flow purified |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011113666A DE102011113666A1 (en) | 2011-09-20 | 2011-09-20 | Method and device for producing two purified partial air streams |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011113666A1 true DE102011113666A1 (en) | 2013-03-21 |
Family
ID=44992454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011113666A Withdrawn DE102011113666A1 (en) | 2011-09-20 | 2011-09-20 | Method and device for producing two purified partial air streams |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102011113666A1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0342436A2 (en) | 1988-05-20 | 1989-11-23 | Linde Aktiengesellschaft | Low-temperature air separation process |
-
2011
- 2011-09-20 DE DE102011113666A patent/DE102011113666A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0342436A2 (en) | 1988-05-20 | 1989-11-23 | Linde Aktiengesellschaft | Low-temperature air separation process |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1067345B1 (en) | Process and device for cryogenic air separation | |
EP2236964B1 (en) | Method and device for low-temperature air separation | |
DE102007031765A1 (en) | Process for the cryogenic separation of air | |
DE10139727A1 (en) | Method and device for obtaining a printed product by low-temperature separation of air | |
DE102010052545A1 (en) | Method and apparatus for recovering a gaseous product by cryogenic separation of air | |
DE102007014643A1 (en) | Method for producing gaseous pressurized product by low temperature separation of air entails first and fourth partial air flows being expanded in turbines, and second and third partial flows compressed in post-compressors | |
DE102010052544A1 (en) | Process for obtaining a gaseous product by cryogenic separation of air | |
EP2789958A1 (en) | Method for the low-temperature decomposition of air and air separation plant | |
EP1074805B1 (en) | Process for producing oxygen under pressure and device therefor | |
EP1995537A2 (en) | Process and device for the cryogenic separation of air | |
EP2520886A1 (en) | Method and device for creating gaseous oxygen pressurised product by the cryogenic decomposition of air | |
DE10018200A1 (en) | Method and device for obtaining pressurized nitrogen by low-temperature separation of air | |
EP3290843A2 (en) | Method and device for extracting pressurised nitrogen and pressurised nitrogen by cryogenic decomposition of air | |
DE102010056560A1 (en) | Method for recovering compressed oxygen and compressed nitrogen by low temperature degradation of air in e.g. classical lime dual column system, for nitrogen-oxygen separation, involves driving circuit compressor by external energy | |
EP2758735A2 (en) | Method and device for generating two purified partial air streams | |
EP2053328A1 (en) | Process for the separation of air by cryogenic distillation | |
DE102017010786A1 (en) | A method and apparatus for recovering a high purity oxygen product stream by cryogenic separation of air | |
DE102007051184A1 (en) | Method and apparatus for cryogenic air separation | |
EP0768503B1 (en) | Triple column air separation process | |
EP2551619A1 (en) | Method and device for extracting pressurised oxygen and pressurised nitrogen by cryogenic decomposition of air | |
DE102007042462A1 (en) | Method and apparatus for the cryogenic separation of air | |
EP4065910A1 (en) | Process and plant for low-temperature fractionation of air | |
DE102013002835A1 (en) | Process for the production of gaseous oxygen by cryogenic separation of air | |
EP3394536A1 (en) | Method and device for obtaining pure nitrogen and pure oxygen by low-temperature separation of air | |
EP2963371B1 (en) | Method and device for creating a pressurised gas product by the cryogenic decomposition of air |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140401 |