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Paramétrages

1. WO2003004951 - PROCEDE DE LIQUEFACTION ET DE DEAZOTATION DE GAZ NATUREL, INSTALLATION DE MISE EN OEUVRE

Numéro de publication WO/2003/004951
Date de publication 16.01.2003
N° de la demande internationale PCT/FR2002/002242
Date du dépôt international 27.06.2002
CIB
F25J 1/02 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
1Procédés ou appareils de liquéfaction ou de solidification des gaz ou des mélanges gazeux
02nécessitant l'emploi d'une réfrigération, p.ex. de l'hélium, de l'hydrogène
F25J 3/02 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
CPC
F25J 1/0022
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
0002characterised by the fluid to be liquefied
0022Hydrocarbons, e.g. natural gas
F25J 1/004
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
003characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
0032using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
004by flash gas recovery
F25J 1/0042
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
003characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
0032using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
0042by liquid expansion with extraction of work
F25J 1/0052
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
003characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
0047using an "external" refrigerant stream in a closed vapor compression cycle
0052by vaporising a liquid refrigerant stream
F25J 1/0057
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
003characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
0047using an "external" refrigerant stream in a closed vapor compression cycle
0052by vaporising a liquid refrigerant stream
0057after expansion of the liquid refrigerant stream with extraction of work
F25J 1/0217
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
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
02requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
0211using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
0217as at least a three level refrigeration cascade with at least one MCR cycle
Déposants
  • TECHNIP FRANCE [FR/FR]; 6-8, allée de l'Arche Faubourg de l'Arche ZAC Danton F-92400 Courbevoie, FR
Inventeurs
  • PARADOWSKI, Henri; FR
Mandataires
  • CABINET LAVOIX; 2, place d'Estienne d'Orves F-75441 Paris cédex 09, FR
Données relatives à la priorité
01/0888304.07.2001FR
Langue de publication français (FR)
Langue de dépôt français (FR)
États désignés
Titre
(EN) METHOD FOR THE LIQUEFACTION AND DENITROGENATION OF NATURAL GAS, SYSTEM FOR CARRYING OUT SAID METHOD
(FR) PROCEDE DE LIQUEFACTION ET DE DEAZOTATION DE GAZ NATUREL, INSTALLATION DE MISE EN OEUVRE
Abrégé
(EN)
A method for the liquifaction and denitrogenation of natural gas, a system for carrying out said method, and gases obtained by said separation. The invention relates to a method for the liquefaction and denitrogenation of natural gas (1) containing nitrogen, wherein said natural gas (1) is cooled, liquefied and separated into a first head fraction (9), which is relatively more volatile and enriched with nitrogen, and a first foot fraction (15). The method is characterized in that the first head fraction (9) is cooled and liquefied, separated into a second head fraction (11) which is relatively more volatile and which provides gaseous nitrogen (29), and a second foot fraction (12) which is re-treated, also characterized in that the first foot fraction (15) is cooled in order to provide liquefied natural gas which is essentially devoid of nitrogen (24). Other embodiments are also disclosed.
(FR)
Procédé de liquéfaction et de déazotation de gaz naturel, installation de mise en oeuvre, et gaz obtenus par cette séparation. L'invention concerne un procédé de liquéfaction et de déazotation de gaz naturel (1) contenant de l'azote, dans lequel ledit gaz naturel (1) est refroidi, liquéfié et séparé en une première fraction de tête (9) relativement plus volatile enrichie en azote, et en un première fraction de pied (15). Le procédé est caractérisé en ce que la première fraction de tête (9) est refroidie et liquéfiée, séparée en une deuxième fraction de tête (11) relativement plus volatile qui fournit de l'azote gazeux (29), et en une deuxième fraction de pied (12) qui est retraitée, et en ce que la première fraction de pied (15) est refroidie pour fournir du gaz naturel liquéfié essentiellement exempt d'azote (24). D'autre modes de réalisation sont décrits.
Également publié en tant que
NO20030581
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