EP 2875294 A2 20150527 - METHOD FOR LIQUEFYING A NATURAL GAS, INCLUDING A PHASE CHANGE
Title (en)
METHOD FOR LIQUEFYING A NATURAL GAS, INCLUDING A PHASE CHANGE
Title (de)
VERFAHREN ZUR VERFLÜSSIGUNG EINES ERDGASES MIT EINER PHASENÄNDERUNG
Title (fr)
PROCÉDÉ DE LIQUÉFACTION DE GAZ NATUREL AVEC CHANGEMENT DE PHASE
Publication
Application
Priority
- FR 1256888 A 20120717
- FR 2013051593 W 20130704
Abstract (en)
[origin: WO2014013158A2] The present invention relates to a method for liquefying a natural gas in at least one cryogenic heat exchanger (EC1) by indirect contact circulation with at least one flow (SI) of coolant entering substantially at temperature TO in a first inlet (AA1) in said exchanger (EC1) and at a pressure PI, passing through said exchanger in cocurrent flow with respect to said natural gas flow (Sg), exiting (BB) at in a liquid state, then depressurized by a pressure reducer (Dl) at the cold end (BB) of said exchanger (EC1) to return to a gaseous state at a pressure P1 less than PI and at a temperature T1 less than TO, before exiting again through the outlet (AA3) of the hot end (AA) of said exchanger (EC1) in a gaseous state, and substantially at temperature T0. Said coolant in a gaseous state is then partially liquefied again and conveyed to the inlet (AA1) of said exchanger by compression in a first compressor (C1), then by a partial condensation in a first condenser (HO) and by a phase separation, a first liquid phase (d1a) being conveyed at least in part to said first inlet (AA1), a first gas phase (d1b) being compressed by a second compressor (CIA), then cooled in an desuperheater (DS) by contact with a portion (dlc) of said first liquid phase (d1a) at the outlet of said first separator, before condensation in a second condenser (H1).
IPC 8 full level
CPC (source: EP KR RU US)
F17C 13/082 (2013.01 - KR US); F25J 1/0022 (2013.01 - EP KR RU US); F25J 1/0055 (2013.01 - EP KR US); F25J 1/008 (2013.01 - RU); F25J 1/0214 (2013.01 - EP KR RU US); F25J 1/0278 (2013.01 - EP KR US); F25J 1/0291 (2013.01 - EP KR US); F25J 1/0292 (2013.01 - EP KR US); F25J 1/0296 (2013.01 - EP KR US); F25J 2205/90 (2013.01 - EP KR US); F25J 2240/60 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2014013158A2
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014013158 A2 20140123; WO 2014013158 A3 20140918; AP 2015008214 A0 20150131; AU 2013291842 A1 20150115; AU 2013291842 B2 20151224; BR 112015000945 A2 20170627; BR 112015000945 B1 20230411; CN 104471334 A 20150325; CN 104471334 B 20170804; EP 2875294 A2 20150527; FR 2993643 A1 20140124; FR 2993643 B1 20140822; JP 2015524045 A 20150820; JP 6002841 B2 20161005; KR 101647931 B1 20160811; KR 20150023624 A 20150305; RU 2015104102 A 20160910; RU 2613766 C2 20170321; SG 11201408032P A 20150129; US 10107549 B2 20181023; US 2015184930 A1 20150702
DOCDB simple family (application)
FR 2013051593 W 20130704; AP 2015008214 A 20130704; AU 2013291842 A 20130704; BR 112015000945 A 20130704; CN 201380038532 A 20130704; EP 13745449 A 20130704; FR 1256888 A 20120717; JP 2015519315 A 20130704; KR 20157000049 A 20130704; RU 2015104102 A 20130704; SG 11201408032P A 20130704; US 201314415109 A 20130704