EP 0818661 B1 20020911 - Improved process and apparatus for cooling and liquefaction of natural gas
Title (en)
Improved process and apparatus for cooling and liquefaction of natural gas
Title (de)
Verbessertes Verfahren und Anlage für die Kühlung und Verflüssigung von Erdgas
Title (fr)
Procédé et installation perfectionnés de refroidissement, en particulier pour la liquéfaction de gaz naturel
Publication
Application
Priority
FR 9608758 A 19960712
Abstract (en)
[origin: EP0818661A1] The method involves compressing a coolant mixture in a pre-final stage (1A) through a series of stages of a compression unit (1). The mixture is condensed partially by cooling, and then is separated to produce a vapour fraction and a liquid fraction. The vapour fraction is cooled and partially condensed, and then passed through a final compression stage (1C) to obtain a high-pressure vapour. Part of the high-pressure vapour fraction and liquid fraction is then cooled, expanded and circulated through a first heat exchanger (5). During the vapour fraction's cooling and partial condensation stage, the vapour fraction obtained from the separation of the condensed mixture is cooled by passing it through a second heat exchanger (18) with the coolant. The condensed mixture is separated in a first separator (14). The vapour fraction from it is condensed in the second heat exchanger, and then passed through a second separator (15) to produce a vapour and a liquid fraction. The vapour fraction is sent to the final compression stage, and the liquid fraction to the first heat exchanger.
IPC 1-7
IPC 8 full level
CPC (source: EP KR US)
F25J 1/00 (2013.01 - KR); F25J 1/0022 (2013.01 - EP US); F25J 1/0042 (2013.01 - EP US); F25J 1/0055 (2013.01 - EP US); F25J 1/0092 (2013.01 - EP US); F25J 1/0212 (2013.01 - EP US); F25J 1/0214 (2013.01 - EP US); F25J 1/0215 (2013.01 - EP US); F25J 1/0262 (2013.01 - EP US); F25J 1/0268 (2013.01 - EP US); F25J 1/0279 (2013.01 - EP US); F25J 1/0291 (2013.01 - EP US); F25J 1/0292 (2013.01 - EP US); F25J 2220/64 (2013.01 - EP US); Y10S 62/912 (2013.01 - EP US); Y10S 62/913 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0818661 A1 19980114; EP 0818661 B1 20020911; AR 007816 A1 19991124; AT E224036 T1 20020915; AU 2496697 A 19980122; AU 723530 B2 20000831; BR 9703959 A 19990316; CA 2209723 A1 19980112; CA 2209723 C 20050524; CN 1140755 C 20040303; CN 1172243 A 19980204; CO 5070650 A1 20010828; DE 69715330 D1 20021017; DE 69715330 T2 20030102; DK 0818661 T3 20030120; DZ 2265 A1 20040704; ES 2185883 T3 20030501; FR 2751059 A1 19980116; FR 2751059 B1 19980925; ID 19101 A 19980611; IL 121092 A0 19971120; IL 121092 A 20000716; JP 4233619 B2 20090304; JP H1068586 A 19980310; KR 100365367 B1 20030219; KR 980010302 A 19980430; MY 119081 A 20050331; NO 311461 B1 20011126; NO 973221 D0 19970710; NO 973221 L 19980113; PT 818661 E 20030131; TW 332253 B 19980521; US 5943881 A 19990831
DOCDB simple family (application)
EP 97401367 A 19970616; AR P970103019 A 19970707; AT 97401367 T 19970616; AU 2496697 A 19970617; BR 9703959 A 19970711; CA 2209723 A 19970707; CN 97114571 A 19970714; CO 97036140 A 19970627; DE 69715330 T 19970616; DK 97401367 T 19970616; DZ 970115 A 19970709; ES 97401367 T 19970616; FR 9608758 A 19960712; ID 972347 A 19970707; IL 12109297 A 19970617; JP 18806697 A 19970714; KR 19970032394 A 19970712; MY PI9702852 A 19970625; NO 973221 A 19970710; PT 97401367 T 19970616; TW 86108000 A 19970611; US 89113397 A 19970710