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FR2827186A1 - Compressor(s) in an air distillation unit supplying gas(es) to an industrial unit which produces steam are driven using the steam from the industrial unit and an electric motor - Google Patents

Compressor(s) in an air distillation unit supplying gas(es) to an industrial unit which produces steam are driven using the steam from the industrial unit and an electric motor Download PDF

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Publication number
FR2827186A1
FR2827186A1 FR0109306A FR0109306A FR2827186A1 FR 2827186 A1 FR2827186 A1 FR 2827186A1 FR 0109306 A FR0109306 A FR 0109306A FR 0109306 A FR0109306 A FR 0109306A FR 2827186 A1 FR2827186 A1 FR 2827186A1
Authority
FR
France
Prior art keywords
unit
air
compression machine
compressor
steam
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.)
Pending
Application number
FR0109306A
Other languages
French (fr)
Inventor
Jean Pierre Gourbier
Lasad Jaouani
Giovanni Massimo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Priority to FR0109306A priority Critical patent/FR2827186A1/en
Publication of FR2827186A1 publication Critical patent/FR2827186A1/en
Pending legal-status Critical Current

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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
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F25J3/04139—Combination of different types of drivers mechanically coupled to the same compressor, possibly split on multiple compressor casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04024—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of purified feed air, so-called boosted air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • 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
    • F25J3/0403—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 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
    • F25J3/04006—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
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F25J3/04115—Arrangements of compressors and /or their drivers characterised by the type of prime driver, e.g. hot gas expander
    • F25J3/04121—Steam turbine as the prime mechanical driver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F25J3/04115—Arrangements of compressors and /or their drivers characterised by the type of prime driver, e.g. hot gas expander
    • F25J3/04133—Electrical motor as the prime mechanical driver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F25J3/04145—Mechanically coupling of different compressors of the air fractionation process to the same driver(s)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • F25J3/04539—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the H2/CO synthesis by partial oxidation or oxygen consuming reforming processes of fuels
    • 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
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • F25J3/04539—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the H2/CO synthesis by partial oxidation or oxygen consuming reforming processes of fuels
    • F25J3/04545—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the H2/CO synthesis by partial oxidation or oxygen consuming reforming processes of fuels for the gasification of solid or heavy liquid fuels, e.g. integrated gasification combined cycle [IGCC]
    • 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
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04563—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04812—Different modes, i.e. "runs" of operation
    • F25J3/04818—Start-up of the process
    • 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
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/24—Multiple compressors or compressor stages in parallel
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

During at least one phase of operation of the industrial unit (start-up) the compressor is driven using an electric motor (15). Process for driving at least one compressor (7, 8) in an air distillation unit (3) which supplies oxygen and/or nitrogen and/or argon to an industrial unit (1) producing steam. In established operation, the compressor is driven at least partly by means (13) of expanding the steam with production of external work, fed by the steam from the industrial unit. The electric motor supplies a minor part of the energy in established operation, or acts as an alternator to supply electrical energy to the grid (16). Two compressors are driven using the same axle, with a principal air compressor (7) and another gas compressor (8), in particular an air suppressor for the air distillation unit. Combined air distillation and steam production unit to carry out the above process. The steam turbine and the electric motor can be coupled and decoupled from the installation. The steam turbine is adjacent to the main air compressor.

Description

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La présente invention est relative à un procédé d'entraînement d'au moins une machine de compression d'une unité de distillation d'air qui fournit de l'oxygène et/ou de l'azote et/ou de l'argon à une unité industrielle produisant de la vapeur d'eau, ce procédé étant du type dans lequel, en régime établi, la machine de compression est entraînée au moins en partie par une turbine à vapeur alimentée par de la vapeur d'eau provenant de ladite unité industrielle.  The present invention relates to a method for driving at least one compression machine of an air distillation unit which supplies oxygen and / or nitrogen and / or argon to a industrial unit producing water vapor, this process being of the type in which, under steady state conditions, the compression machine is driven at least in part by a steam turbine supplied with water vapor coming from said industrial unit .

Certains procédés industriels consommant de l'oxygène et/ou de l'azote et/ou de l'argon, tels que les procédés de production d'hydrocarbures synthétiques (procédés dits Gas to Liquid ou GTL ), sont exothermiques et génèrent de la vapeur d'eau. Lorsque la pression et/ou la température de cette vapeur la rendent non utilisable sur le site, la vapeur est généralement valorisée comme source d'entraînement, via une turbine à vapeur, d'au moins une machine de compression de l'unité de distillation d'air qui produit l'oxygène et/ou l'azote et/ou l'argon. La turbine à vapeur peut être une turbine à contre-pression, échappant à une pression supérieure à la pression atmosphérique, ou une turbine à condensation, échappant à une pression inférieure à la pression atmosphérique et associée à un condenseur d'eau, refroidi par de l'eau ou par de l'air ambiant, et à une pompe de recyclage de l'eau vers la chaudière de production de vapeur.  Certain industrial processes consuming oxygen and / or nitrogen and / or argon, such as processes for the production of synthetic hydrocarbons (processes known as Gas to Liquid or GTL), are exothermic and generate steam. of water. When the pressure and / or temperature of this vapor makes it unusable on site, the vapor is generally used as a source of drive, via a steam turbine, of at least one compression machine of the distillation unit air which produces oxygen and / or nitrogen and / or argon. The steam turbine can be a back-pressure turbine, escaping at a pressure higher than atmospheric pressure, or a condensing turbine, escaping at a pressure lower than atmospheric pressure and associated with a water condenser, cooled by water or by ambient air, and to a pump for recycling the water to the steam generator.

Cependant, la vapeur n'est pleinement disponible qu'en régime établi, ce qui pose le problème du démarrage de l'ensemble de l'installation. Pour cela, on utilise habituellement une chaudière d'appoint qui, à partir d'un combustible extérieur, produit de la vapeur ayant les mêmes caractéristiques de pression et de température (voir par exemple l'article Oxygen Facilities for Synthetic Fuel Projects , de W. J. SCHARLE et K. WILSON, Journal of  However, steam is only fully available in steady state, which poses the problem of starting up the entire installation. For this, we usually use an auxiliary boiler which, from external fuel, produces steam with the same pressure and temperature characteristics (see for example the article Oxygen Facilities for Synthetic Fuel Projects, by WJ SCHARLE and K. WILSON, Journal of

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Engineering for Industry, Novembre 1981, vol. 103, pp. 409 à 417).  Engineering for Industry, November 1981, vol. 103, pp. 409 to 417).

L'invention a pour but d'éviter la mise en oeuvre, relativement complexe, d'une telle chaudière d'appoint, au moyen d'un agencement simple et souple.  The object of the invention is to avoid the relatively complex implementation of such an auxiliary boiler, by means of a simple and flexible arrangement.

A cet effet, l'invention a pour objet un procédé du type précité, caractérisé en ce que pendant au moins une phase de fonctionnement de ladite unité industrielle, on entraîne la machine de compression en utilisant un moteur électrique.  To this end, the subject of the invention is a method of the aforementioned type, characterized in that during at least one operating phase of said industrial unit, the compression machine is driven using an electric motor.

Le procédé suivant l'invention peut comporter une ou plusieurs des caractéristiques suivantes : - ladite phase de fonctionnement comprend la phase de démarrage de ladite unité industrielle ; - au fur et à mesure de la mise en régime de l'unité industrielle, on utilise la vapeur produite par cette dernière pour fournir une partie de l'énergie d'entraînement de la machine de compression, via la turbine à vapeur ; - en régime établi, le moteur électrique fournit une énergie d'appoint, notamment minoritaire, pour l'entraînement de la machine de compression ; - en régime établi, le moteur électrique fonctionne en alternateur et fournit de l'énergie électrique au réseau et on entraîne de façon analogue au moins deux machines de compression couplées à un même arbre, à savoir un compresseur principal d'air et un autre compresseur de gaz, notamment un surpresseur d'air, de l'unité de distillation d'air.  The method according to the invention may include one or more of the following characteristics: - said operating phase includes the start-up phase of said industrial unit; - as the industrial unit is brought into operation, the steam produced by the latter is used to supply part of the drive energy of the compression machine, via the steam turbine; - in steady state, the electric motor provides additional energy, in particular a minority, for driving the compression machine; - under steady state conditions, the electric motor operates as an alternator and supplies electrical energy to the network, and at least two compression machines are similarly driven coupled to the same shaft, namely a main air compressor and another compressor gas, including an air blower, from the air distillation unit.

L'invention a également pour objet une installation combinée de distillation d'air et de production de vapeur d'eau, du type comprenant d'une part au moins une unité de distillation d'air qui comporte au moins une machine de compression reliée à une turbine à vapeur, et une boîte  The invention also relates to a combined installation for the distillation of air and the production of water vapor, of the type comprising on the one hand at least one air distillation unit which comprises at least one compression machine connected to a steam turbine, and a box

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froide contenant un appareil de distillation d'air et une ligne d'échange thermique adaptée pour refroidir l'air comprimé jusqu'à une température permettant sa distillation, et d'autre part une unité industrielle qui est alimentée par de l'oxygène et/ou de l'azote et/ou de l'argon produit par l'unité de distillation d'air et qui produit de la vapeur d'eau, une partie au moins de cette vapeur alimentant la turbine à vapeur, caractérisée en ce qu'elle comprend en outre un moteur électrique relié au réseau et couplé à l'arbre d'entraînement de la machine de compression.  cold containing an air distillation apparatus and a heat exchange line adapted to cool the compressed air to a temperature allowing its distillation, and on the other hand an industrial unit which is supplied with oxygen and / or nitrogen and / or argon produced by the air distillation unit and which produces water vapor, at least part of this vapor supplying the steam turbine, characterized in that it further comprises an electric motor connected to the network and coupled to the drive shaft of the compression machine.

Suivant d'autres caractéristiques de cette installation : - l'installation comprend des moyens d'accouplement et de désaccouplement de la turbine à vapeur et de la machine de compression ; - l'installation comprend des moyens d'accouplement et de désaccouplement du moteur électrique et de la machine de compression ; - la machine de compression est un compresseur principal d'air de l'unité de distillation d'air ; - l'installation comprend au moins une seconde machine de compression couplée au même arbre que le compresseur principal d'air ; - la seconde machine de compression est un autre compresseur de gaz, notamment un surpresseur d'air, de l'unité de distillation d'air ; et - la turbine à vapeur est adjacente au compresseur principal d'air.  According to other characteristics of this installation: the installation comprises means for coupling and uncoupling the steam turbine and the compression machine; - The installation includes means for coupling and uncoupling the electric motor and the compression machine; - the compression machine is a main air compressor of the air distillation unit; - The installation comprises at least a second compression machine coupled to the same shaft as the main air compressor; the second compression machine is another gas compressor, in particular an air booster, from the air distillation unit; and - the steam turbine is adjacent to the main air compressor.

Des exemples de mise en oeuvre de l'invention vont maintenant être décrits en regard des dessins annexés, sur lesquels : - la Figure 1 représente schématiquement une installation combinée conforme à l'invention ;  Examples of implementation of the invention will now be described with reference to the accompanying drawings, in which: - Figure 1 schematically shows a combined installation according to the invention;

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les Figures 2 et 3 sont des vues analogues partielles de deux variantes.  Figures 2 and 3 are partial similar views of two variants.

L'installation combinée représentée sur la Figure 1 est constituée d'une part d'une unité GTL 1 qui produit de la vapeur d'eau dans une ligne 2, et d'autre part d'une unité de distillation d'air 3 qui alimente l'unité 1 en oxygène gazeux haute pression HPGOX, via une ligne 4, et également en azote gazeux haute pression HPGN, via une ligne 5 équipée d'un compresseur d'azote 6. En pratique, il peut être prévu plusieurs unités 3 en parallèle.  The combined installation shown in Figure 1 consists on the one hand of a GTL unit 1 which produces water vapor in a line 2, and on the other hand of an air distillation unit 3 which supplies unit 1 with high-pressure gaseous oxygen HPGOX, via a line 4, and also with high-pressure gaseous nitrogen gas HPGN, via a line 5 equipped with a nitrogen compressor 6. In practice, several units 3 can be provided in parallel.

L'unité 3 comprend essentiellement un compresseur principal d'air 7 (ou, en variante, plusieurs compresseurs en parallèle), un surpresseur d'air 8 et une boîte froide 9.  The unit 3 essentially comprises a main air compressor 7 (or, as a variant, several compressors in parallel), an air booster 8 and a cold box 9.

Cette dernière comprend essentiellement un appareil de distillation d'air 10, par exemple une double colonne comportant une colonne de distillation moyenne pression et une colonne de distillation basse pression couplées par un vaporiseur-condenseur, et une ligne d'échange thermique 11. The latter essentially comprises an air distillation apparatus 10, for example a double column comprising a medium pressure distillation column and a low pressure distillation column coupled by a vaporizer-condenser, and a heat exchange line 11.

Le compresseur 7 et le surpresseur 8 sont montés sur un même arbre 12, couplé d'une part à une turbine à vapeur 13, via un dispositif d'accouplement désaccoupable 14, et d'autre part à un moteur électrique 15 relié au réseau 16.  The compressor 7 and the booster 8 are mounted on the same shaft 12, coupled on the one hand to a steam turbine 13, via a disengageable coupling device 14, and on the other hand to an electric motor 15 connected to the network 16 .

L'appareil 10 produit de l'oxygène liquide LOX sous la basse pression, et cet oxygène liquide est porté à la haute pression de production par une pompe 17, avant d'être vaporisé et réchauffé dans la ligne d'échange 11. L'appareil 10 produit également de l'azote gazeux GN, sous la basse pression et/ou sous la moyenne pression, qui est réchauffé dans la ligne d'échange puis comprimé en 6 à la haute pression de production.  The apparatus 10 produces LOX liquid oxygen under low pressure, and this liquid oxygen is brought to high production pressure by a pump 17, before being vaporized and heated in the exchange line 11. The apparatus 10 also produces nitrogen gas GN, under low pressure and / or under medium pressure, which is heated in the exchange line and then compressed into 6 at high production pressure.

En fonctionnement, l'air atmosphérique, comprimé à la moyenne pression en 7, est prérefroidi dans un prérefroidisseur 18 à air ou à eau, épuré en eau et en C02 dans un appareil d'épuration par adsorption 19, et séparé en deux  In operation, the atmospheric air, compressed at medium pressure at 7, is precooled in an air or water precooler 18, purified with water and C02 in an adsorption purification device 19, and separated into two

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flux : un premier flux d'air moyenne pression qui est refroidi en 11 jusqu'au voisinage de son point de rosée pour être distillé en 10, et un second flux d'air qui est surpressé en 8 à une haute pression permettant la vaporisation de l'oxygène liquide haute pression dans la ligne d'échange.  flow: a first medium pressure air flow which is cooled at 11 to the vicinity of its dew point to be distilled at 10, and a second air flow which is supercharged at 8 at a high pressure allowing the vaporization of high pressure liquid oxygen in the exchange line.

Pour le démarrage de l'installation, c'est le moteur 15 qui entraîne les compresseurs 7 et 8. Au fur et à mesure de l'augmentation du débit de vapeur dans la ligne 2, l'énergie produite par la détente de cette vapeur dans la turbine 13 se substitue à l'énergie électrique, jusqu'à ce que le régime de l'unité 1 soit stabilisé. Si le débit de vapeur produit par l'unité 1 correspond alors exactement aux besoins d'énergie des deux compresseurs, le moteur 15 est coupé. Si ce débit de vapeur est insuffisant, le moteur 15 fournit l'énergie manquante s'il est excédentaire, le moteur 15 fonctionne en alternateur et produit de l'énergie électrique exportée vers le réseau 16.  For starting the installation, it is the motor 15 which drives the compressors 7 and 8. As the steam flow rate increases in line 2, the energy produced by the expansion of this steam in the turbine 13 replaces electrical energy, until the speed of unit 1 is stabilized. If the steam flow produced by the unit 1 then corresponds exactly to the energy needs of the two compressors, the engine 15 is stopped. If this steam flow is insufficient, the engine 15 supplies the missing energy if it is excess, the engine 15 operates as an alternator and produces electrical energy exported to the network 16.

Le dispositif d'accouplement 14 permet de procéder à la maintenance de la turbine 13 sans interrompre le fonctionnement de l'installation, la totalité de l'énergie de compression étant alors fournie par le moteur 15.  The coupling device 14 allows maintenance of the turbine 13 without interrupting the operation of the installation, all of the compression energy then being supplied by the motor 15.

L'installation de la Figure 2 ne diffère de celle de la Figure 1 que par l'interversion des positions de la turbine à vapeur et du moteur électrique.  The installation of Figure 2 differs from that of Figure 1 only by the reversal of the positions of the steam turbine and the electric motor.

Comme représenté sur les Figures 1 et 2, l'arbre 12 peut être couplé au moteur 15 via un dispositif d'accouplement désaccouplable 20. Ce dispositif 20 permet de procéder à la maintenance du moteur 15 sans interrompre le fonctionnement de l'installation, la totalité de l'énergie étant alors fournie par la turbine 13.  As shown in FIGS. 1 and 2, the shaft 12 can be coupled to the motor 15 via a disengageable coupling device 20. This device 20 makes it possible to carry out maintenance on the motor 15 without interrupting the operation of the installation, the all of the energy then being supplied by the turbine 13.

L'installation de la Figure 3 ne diffère de celle de la Figure 2 que par le fait que le moteur électrique est monté entre les deux machines de compression 7 et 8. Il  The installation of Figure 3 differs from that of Figure 2 only in that the electric motor is mounted between the two compression machines 7 and 8. It

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comporte alors deux bouts d'arbre de sortie dont chacun est couplé à l'une des deux machines.  then comprises two ends of output shaft each of which is coupled to one of the two machines.

Comme on le comprend, en fonction des types de machines de compression, il peut être nécessaire d'interposer des boîtes de vitesse entre les organes d'entraînement 13 et/ou 15 et les arbres de ces machines.  As will be understood, depending on the types of compression machines, it may be necessary to interpose gearboxes between the drive members 13 and / or 15 and the shafts of these machines.

En variante, le compresseur 6 peut être couplé à l'arbre 12, en remplacement du surpresseur 8 ou en supplément.  Alternatively, the compressor 6 can be coupled to the shaft 12, replacing the booster 8 or in addition.

En variante également, si l'on dispose sur le site d'une source d'oxygène auxiliaire, par exemple d'un réservoir de stockage d'oxygène liquide, on peut démarrer l'unité 1 avec cet oxygène. La turbine 13 est alors, au démarrage de l'unité 3, alimentée minoritairement par la vapeur provenant de l'unité 1, et majoritairement par l'énergie électrique du moteur 15. Le rapport des énergies motrices est par exemple 30%-70%. Puis la proportion de l'énergie électrique baisse progressivement, jusqu'au régime établi, où elle est minoritaire, notamment inférieure à 30% et, de préférence encore, inférieure à 10%, voire nulle. Alternatively also, if there is an auxiliary oxygen source on the site, for example a liquid oxygen storage tank, unit 1 can be started with this oxygen. The turbine 13 is then, at the start of the unit 3, supplied mainly by the steam coming from the unit 1, and mainly by the electric energy of the engine 15. The ratio of the driving energies is for example 30% -70% . Then the proportion of electrical energy gradually decreases, up to the established regime, where it is in the minority, in particular less than 30% and, more preferably, less than 10%, or even zero.

Claims (13)

REVENDICATIONS 1. Procédé d'entraînement d'au moins une machine de compression (7,8) d'une unité de distillation d'air (3) qui fournit de l'oxygène et/ou de l'azote et/ou de l'argon à une unité industrielle (1) produisant de la vapeur d'eau, ce procédé étant du type dans lequel, en régime établi, la machine de compression est entraînée au moins en partie par une turbine à vapeur (13) alimentée par de la vapeur d'eau provenant de ladite unité industrielle (1), caractérisé en ce que pendant au moins une phase de fonctionnement de ladite unité industrielle (1), on entraîne la machine de compression (7,8) en utilisant un moteur électrique (15). 1. Method for driving at least one compression machine (7,8) of an air distillation unit (3) which supplies oxygen and / or nitrogen and / or argon at an industrial unit (1) producing water vapor, this process being of the type in which, in steady state, the compression machine is driven at least in part by a steam turbine (13) supplied by water vapor from said industrial unit (1), characterized in that during at least one operating phase of said industrial unit (1), the compression machine (7,8) is driven using an electric motor (15 ). 2. Procédé suivant la revendication 1, caractérisé en ce que ladite phase de fonctionnement comprend la phase de démarrage de ladite unité industrielle (1).  2. Method according to claim 1, characterized in that said operating phase comprises the start-up phase of said industrial unit (1). 3. Procédé suivant la revendication 2, caractérisé en ce que, au fur et à mesure de la mise en régime de l'unité industrielle (1), on utilise la vapeur produite par cette dernière pour fournir une partie de l'énergie d'entraînement de la machine de compression (7,8), via la turbine à vapeur (13).  3. Method according to claim 2, characterized in that, as the industrial unit (1) is brought into operation, the steam produced by the latter is used to supply part of the energy of drive of the compression machine (7,8), via the steam turbine (13). 4. Procédé suivant la revendication 3, caractérisé en ce que, en régime établi, le moteur électrique (15) fournit une énergie d'appoint, notamment minoritaire, pour l'entraînement de la machine de compression (7,8).  4. Method according to claim 3, characterized in that, in steady state, the electric motor (15) provides additional energy, in particular minority, for driving the compression machine (7,8). 5. Procédé suivant la revendication 3, caractérisé en ce que, en régime établi, le moteur électrique (15) fonctionne en alternateur et fournit de l'énergie électrique au réseau (16).  5. Method according to claim 3, characterized in that, in steady state, the electric motor (15) operates as an alternator and supplies electrical energy to the network (16). 6. Procédé suivant l'une quelconque des revendications 1 à 5, caractérisé en ce qu'on entraîne de façon analogue au moins deux machines de compression (7,8) couplées à un même arbre, à savoir un compresseur principal  6. Method according to any one of claims 1 to 5, characterized in that in a similar manner drives at least two compression machines (7,8) coupled to the same shaft, namely a main compressor <Desc/Clms Page number 8><Desc / Clms Page number 8> d'air (7) et un autre compresseur de gaz (8), notamment un surpresseur d'air, de l'unité de distillation d'air (3).  air (7) and another gas compressor (8), in particular an air booster, from the air distillation unit (3). 7. Installation combinée de distillation d'air et de production de vapeur d'eau, du type comprenant d'une part au moins une unité de distillation d'air (3) qui comporte au moins une machine de compression (7,8) reliée à une turbine à vapeur (3), et une boîte froide (9) contenant un appareil de distillation d'air (10) et une ligne d'échange thermique (11) adaptée pour refroidir l'air comprimé jusqu'à une température permettant sa distillation, et d'autre part une unité industrielle (1) qui est alimentée par de l'oxygène et/ou de l'azote et/ou de l'argon produit par l'unité de distillation d'air (3) et qui produit de la vapeur d'eau, une partie au moins de cette vapeur alimentant la turbine à vapeur (13), caractérisée en ce qu'elle comprend en outre un moteur électrique (15) relié au réseau (16) et couplé à l'arbre d'entraînement de la machine de compression (7,8).  7. Combined installation for air distillation and production of water vapor, of the type comprising on the one hand at least one air distillation unit (3) which comprises at least one compression machine (7,8) connected to a steam turbine (3), and a cold box (9) containing an air distillation apparatus (10) and a heat exchange line (11) adapted to cool the compressed air to a temperature allowing its distillation, and on the other hand an industrial unit (1) which is supplied with oxygen and / or nitrogen and / or argon produced by the air distillation unit (3) and which produces water vapor, at least part of this vapor supplying the steam turbine (13), characterized in that it further comprises an electric motor (15) connected to the network (16) and coupled to the compression machine drive shaft (7,8). 8. Installation suivant la revendication 7, caractérisée en ce qu'elle comprend des moyens (14) d'accouplement et de désaccouplement de la turbine à vapeur (13) et de la machine de compression (7,8).  8. Installation according to claim 7, characterized in that it comprises means (14) for coupling and uncoupling the steam turbine (13) and the compression machine (7,8). 9. Installation suivant la revendication 7 ou 8, caractérisée en ce qu'elle comprend des moyens (20) d'accouplement et de désaccouplement du moteur électrique (15) et de la machine de compression (7,8).  9. Installation according to claim 7 or 8, characterized in that it comprises means (20) for coupling and uncoupling the electric motor (15) and the compression machine (7,8). 10. Installation suivant l'une quelconque des revendications 7 à 9, caractérisée en ce que la machine de compression (7) est un compresseur principal d'air de l'unité de distillation d'air (3).  10. Installation according to any one of claims 7 to 9, characterized in that the compression machine (7) is a main air compressor of the air distillation unit (3). 11. Installation suivant la revendication 10, caractérisée en ce qu'elle comprend au moins une seconde machine de compression (8) couplée au même arbre que le compresseur principal d'air (7).  11. Installation according to claim 10, characterized in that it comprises at least a second compression machine (8) coupled to the same shaft as the main air compressor (7). <Desc/Clms Page number 9> <Desc / Clms Page number 9> 12. Installation suivant la revendication 11, caractérisée en ce que la seconde machine de compression (8) est un autre compresseur de gaz, notamment un surpresseur d'air, de l'unité de distillation d'air (3).  12. Installation according to claim 11, characterized in that the second compression machine (8) is another gas compressor, in particular an air blower, of the air distillation unit (3). 13. Installation suivant la revendication 12, caractérisée en ce que la turbine à vapeur (13) est adjacente au compresseur principal d'air (7). 13. Installation according to claim 12, characterized in that the steam turbine (13) is adjacent to the main air compressor (7).
FR0109306A 2001-07-12 2001-07-12 Compressor(s) in an air distillation unit supplying gas(es) to an industrial unit which produces steam are driven using the steam from the industrial unit and an electric motor Pending FR2827186A1 (en)

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FR2943772A1 (en) * 2009-03-27 2010-10-01 Air Liquide APPARATUS AND METHOD FOR AIR SEPARATION BY CRYOGENIC DISTILLATION
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WO2011006862A3 (en) * 2009-07-13 2012-04-05 Alstom Technology Ltd System for gas processing
CN102597672A (en) * 2009-07-13 2012-07-18 阿尔斯通技术有限公司 System for gas processing
CN102597672B (en) * 2009-07-13 2015-08-05 阿尔斯通技术有限公司 For the system of gas treatment
AU2010272630B2 (en) * 2009-07-13 2015-10-22 Alstom Technology Ltd System for gas processing
US9435229B2 (en) * 2012-01-26 2016-09-06 Linde Ag Process and device for air separation and steam generation in a combined system

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