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1. WO2008014091 - SYSTÈME DE GAZ NATUREL LIQUÉFIÉ À EFFICACITÉ DE RÉFRIGERATION AMÉLIORÉE

Numéro de publication WO/2008/014091
Date de publication 31.01.2008
N° de la demande internationale PCT/US2007/072726
Date du dépôt international 03.07.2007
CIB
F25J 1/00 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
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 1/0045
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"
0045by vaporising a liquid return stream
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 1/021
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
0203using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle
0208in combination with an internal quasi-closed refrigeration loop, e.g. with deep flash recycle loop
0209as at least a three level refrigeration cascade
021using a deep flash recycle loop
F25J 1/0265
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
0243Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
0257Construction and layout of liquefaction equipments, e.g. valves, machines
0262Details of the cold heat exchange system
0264Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
0265comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer
Déposants
  • CONOCOPHILLIPS COMPANY [US]/[US] (AllExceptUS)
  • RANSBARGER, Weldon, L. [US]/[US] (UsOnly)
  • MARTINEZ, Bobby, D. [US]/[US] (UsOnly)
  • PRADERIO, Attilio, J. [US]/[US] (UsOnly)
Inventeurs
  • RANSBARGER, Weldon, L.
  • MARTINEZ, Bobby, D.
  • PRADERIO, Attilio, J.
Mandataires
  • KELLY, Kameron, D.
Données relatives à la priorité
11/459,50024.07.2006US
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) LNG SYSTEM WITH ENHANCED REFRIGERATION EFFICIENCY
(FR) SYSTÈME DE GAZ NATUREL LIQUÉFIÉ À EFFICACITÉ DE RÉFRIGERATION AMÉLIORÉE
Abrégé
(EN)
Cascade-type natural gas liquefaction methods and apparatus are provided, having enhanced thermodynamic efficiencies, through the use of added refrigeration levels in one or both of the ethylene and methane refrigeration systems thereof.
(FR)
La présente invention concerne des procédés et un appareil de liquéfaction de gaz naturel de type cascade ayant des niveaux d'efficacité thermodynamique améliorée, grâce à l'utilisation de niveaux de réfrigération supplémentaires dans un ou les deux systèmes de réfrigération à l'éthylène ou au méthane dudit appareil.
Également publié en tant que
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