EP 4244557 B1 20240821 - METHOD FOR EXTRACTING ETHANE FROM AN INITIAL NATURAL GAS STREAM AND CORRESPONDING PLANT
Title (en)
METHOD FOR EXTRACTING ETHANE FROM AN INITIAL NATURAL GAS STREAM AND CORRESPONDING PLANT
Title (de)
VERFAHREN ZUR EXTRAKTION VON ETHAN AUS EINEM ANFÄNGLICHEN ERDGASSTROM UND ENTSPRECHENDE ANLAGE
Title (fr)
PROCÉDÉ D'EXTRACTION D'ÉTHANE DANS UN COURANT DE GAZ NATUREL DE DÉPART ET INSTALLATION CORRESPONDANT
Publication
Application
Priority
- FR 2011521 A 20201110
- EP 2021081135 W 20211109
Abstract (en)
[origin: WO2022101211A1] This method comprises the following steps: - recovering and compressing a top stream (98) from a separating column (34) in order to form a compressed purified natural gas stream (102); - liquefying the compressed purified natural gas stream (102) in a liquefaction unit (24) in order to form a stream (120) of pressurized liquefied natural gas; - flash expansion of the pressurized liquefied natural gas stream (120) and recovery in a storage tank (66); - recovery and compression of a flash gas stream (126) resulting from the expansion; - separating the compressed flash gas stream (132) into a fuel stream (20) and into a recycle stream (134); - cooling and expansion of the recycle stream (134), then introducing the cooled and expanded recycle stream at a top stage of the separating column (34).
IPC 8 full level
F25J 1/00 (2006.01)
CPC (source: EP KR US)
F25J 1/0022 (2013.01 - EP KR US); F25J 1/004 (2013.01 - EP KR US); F25J 1/0042 (2013.01 - EP KR US); F25J 1/0231 (2013.01 - EP KR US); F25J 1/0262 (2013.01 - US); F25J 1/0264 (2013.01 - EP KR); F25J 3/0209 (2013.01 - EP KR US); F25J 3/0233 (2013.01 - EP KR); F25J 3/0238 (2013.01 - EP KR US); F25J 3/0242 (2013.01 - EP KR); F25J 2200/02 (2013.01 - EP KR US); F25J 2200/04 (2013.01 - EP KR); F25J 2200/70 (2013.01 - EP KR); F25J 2200/74 (2013.01 - EP KR); F25J 2200/76 (2013.01 - EP KR); F25J 2205/04 (2013.01 - EP KR); F25J 2210/06 (2013.01 - EP KR); F25J 2210/90 (2013.01 - EP KR); F25J 2215/62 (2013.01 - EP KR US); F25J 2220/62 (2013.01 - EP KR US); F25J 2230/30 (2013.01 - EP KR US); F25J 2230/60 (2013.01 - EP KR); F25J 2240/02 (2013.01 - EP KR US); F25J 2245/90 (2013.01 - EP KR); F25J 2260/20 (2013.01 - EP KR US)
Citation (examination)
WO 2020095246 A2 20200514 - SAIPEM SPA [IT]
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
DOCDB simple family (publication)
FR 3116109 A1 20220513; FR 3116109 B1 20221118; AU 2021379956 A1 20230615; CN 116783438 A 20230919; EP 4244557 A1 20230920; EP 4244557 B1 20240821; JP 2023548920 A 20231121; KR 20230107567 A 20230717; US 2023408191 A1 20231221; WO 2022101211 A1 20220519
DOCDB simple family (application)
FR 2011521 A 20201110; AU 2021379956 A 20211109; CN 202180075770 A 20211109; EP 2021081135 W 20211109; EP 21810002 A 20211109; JP 2023528170 A 20211109; KR 20237015565 A 20211109; US 202118036155 A 20211109