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1. WO2004099691 - PROCEDE ET INSTALLATION DE PRODUCTION DE GAZ DE L'AIR SOUS PRESSION PAR DISTILLATION CRYOGENIQUE D'AIR

Numéro de publication WO/2004/099691
Date de publication 18.11.2004
N° de la demande internationale PCT/FR2004/050146
Date du dépôt international 06.04.2004
CIB
F25J 3/04 2006.01
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
25RÉFRIGÉRATION OU REFROIDISSEMENT; SYSTÈMES COMBINÉS DE CHAUFFAGE ET DE RÉFRIGÉRATION; SYSTÈMES À POMPES À CHALEUR; FABRICATION OU EMMAGASINAGE DE LA GLACE; LIQUÉFACTION OU SOLIDIFICATION DES GAZ
JLIQUÉFACTION, SOLIDIFICATION OU SÉPARATION DES GAZ OU DES MÉLANGES GAZEUX PAR PRESSION ET PAR LE FROID
3Procédés ou appareils pour séparer les constituants des mélanges gazeux impliquant l'emploi d'une liquéfaction ou d'une solidification
02par rectification, c. à d. par échange continuel de chaleur et de matière entre un courant de vapeur et un courant de liquide
04pour l'air
CPC
F25J 2240/42
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
2240Processes or apparatus involving steps for expanding of process streams
40Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
42the fluid being air
F25J 3/04054
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
04for air
04006Providing pressurised feed air or process streams within or from the air fractionation unit
04048by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
04054of air
F25J 3/0409
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
04for air
04006Providing pressurised feed air or process streams within or from the air fractionation unit
04078providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
0409of oxygen
F25J 3/04175
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
04for air
04151Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
04163Hot end purification of the feed air
04169by adsorption of the impurities
04175at a pressure of substantially more than the highest pressure column
F25J 3/04296
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
04for air
04248Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
04284using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
0429of feed air, e.g. used as waste or product air or expanded into an auxiliary column
04296Claude expansion, i.e. expanded into the main or high pressure column
F25J 3/04303
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
3Processes or apparatus for separating the constituents of gaseous ; or liquefied gaseous; mixtures involving the use of liquefaction or solidification
02by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
04for air
04248Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
04284using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
0429of feed air, e.g. used as waste or product air or expanded into an auxiliary column
04303Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
Déposants
  • L'AIR LIQUIDE SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE [FR]/[FR] (AllExceptUS)
  • LE BOT, Patrick [FR]/[FR] (UsOnly)
  • DECAYEUX Olivier [FR]/[FR] (UsOnly)
  • JUDAS, Frédéric [FR]/[FR] (UsOnly)
Inventeurs
  • LE BOT, Patrick
  • DECAYEUX Olivier
  • JUDAS, Frédéric
Mandataires
  • MERCEY, Fiona
Données relatives à la priorité
035014205.05.2003FR
Langue de publication français (FR)
Langue de dépôt français (FR)
États désignés
Titre
(EN) METHOD AND SYSTEM FOR THE PRODUCTION OF PRESSURIZED AIR GAS BY CRYOGENIC DISTILLATION OF AIR
(FR) PROCEDE ET INSTALLATION DE PRODUCTION DE GAZ DE L'AIR SOUS PRESSION PAR DISTILLATION CRYOGENIQUE D'AIR
Abrégé
(EN)
The invention relates to a method for the separation of air by cyrogenic distillation, wherein all of the air is brought to a high pressure of at least 5-10 bars above average pressure; part (11) of the air, including 10-50 % of the high pressure air flow, is compressed in a cold compressor (23) and is then dispatched to an exchanger; at least one part (37) is liquified in the cold end thereof and is then transmitted to at least one column (100) of a system of columns; another fraction of the air (13), at least that which is under high pressure, is at least partially expanded in a Claude turbine (17) and is then sent (35) to the average pressure column (100); at least one liquid flow (25) is drawn off from one of the columns (200) of the column system, pressurized (50) and vaporized in the exchange line (9) and the cold suppressor (23) is coupled to a drive device from the following: an expansion turbine (119, 119A); an elecric motor (61); iii) a combination of an expansion turbine and an electric motor.
(FR)
Dans un procédé de séparation d'air par distillation cryogénique, tout l'air est porté à une haute pression au moins 5 à 10 bars au-dessus de la moyenne pression, une partie (11) de l'air, comprenant entre 10 % et 50 % du débit d'air sous haute pression, est surpressée dans un surpresseur froid (23), puis est renvoyée dans l'échangeur, et au moins une partie (37) se liquéfie au bout froid, puis est envoyée dans au moins une colonne (100) du système de colonnes, une autre fraction de l'air (13) à au moins la haute pression est au moins en partie détendue dans une turbine Claude (17) puis envoyée (35) dans la colonne moyenne pression (100), au moins un débit liquide (25) est soutiré d'une des colonnes (200) du système de colonnes, pressurisé (500), et se vaporise dans la ligne d'échange (9) et le surpresseur froid (23) est couplé à un dispositif d'entraînement parmi : i) une turbine de détente (119, 119A); ii) un moteur électrique (61); iii) une combinaison d'une turbine de détente et d'un moteur électrique.
Également publié en tant que
US2006277944
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