EP 1740897 A4 20130130 - NATURAL GAS LIQUEFACTION
Title (en)
NATURAL GAS LIQUEFACTION
Title (de)
ERDGASVERFLÜSSIGUNG
Title (fr)
LIQUEFACTION DE GAZ NATUREL
Publication
Application
Priority
US 2004012792 W 20040426
Abstract (en)
[origin: WO2005114076A1] A process for liquefying natural gas in conjunction with producing a liquid stream containing predominantly hydrocarbons heavier than methane is disclosed. In the process, the natural gas stream to be liquefied is partially cooled, expanded to an intermediate pressure, and supplied to a distillation column. The bottom product from this distillation column preferentially contains the majority of any hydrocarbons heavier than methane that would otherwise reduce the purity of the liquefied natural gas. The residual gas stream from the distillation column is compressed to a higher intermediate pressure, cooled under pressure to condense it, and then expanded to low pressure to form the liquefied natural gas stream.
IPC 8 full level
F25J 1/00 (2006.01); F25J 1/02 (2006.01); F25J 3/00 (2006.01); F25J 3/02 (2006.01)
CPC (source: EP KR)
F25J 1/0022 (2013.01 - EP); F25J 1/0035 (2013.01 - EP); F25J 1/0042 (2013.01 - EP); F25J 1/0045 (2013.01 - EP); F25J 1/0052 (2013.01 - EP); F25J 1/0057 (2013.01 - EP); F25J 1/02 (2013.01 - KR); F25J 1/0205 (2013.01 - EP); F25J 1/0214 (2013.01 - EP); F25J 1/0216 (2013.01 - EP); F25J 3/0209 (2013.01 - EP); F25J 3/0233 (2013.01 - EP); F25J 3/0238 (2013.01 - EP); F25J 2200/02 (2013.01 - EP); F25J 2200/74 (2013.01 - EP); F25J 2200/80 (2013.01 - EP); F25J 2205/04 (2013.01 - EP); F25J 2230/08 (2013.01 - EP); F25J 2230/60 (2013.01 - EP); F25J 2240/02 (2013.01 - EP); F25J 2240/30 (2013.01 - EP); F25J 2270/02 (2013.01 - EP); F25J 2270/12 (2013.01 - EP); F25J 2270/60 (2013.01 - EP); F25J 2270/66 (2013.01 - EP)
Citation (search report)
- [Y] US 4869740 A 19890926 - CAMPBELL ROY E [US], et al
- [Y] WO 02101307 A1 20021219 - ELCOR CORP [US], et al
- [Y] US 6526777 B1 20030304 - CAMPBELL ROY E [US], et al
- [Y] US 6401486 B1 20020611 - LEE RONG-JWYN [US], et al
- [A] US 4157904 A 19790612 - CAMPBELL ROY E [US], et al
- See references of WO 2005114076A1
Designated contracting state (EPC)
DE ES FR GB NL
DOCDB simple family (publication)
WO 2005114076 A1 20051201; AR 046607 A1 20051214; AU 2004319953 A1 20051201; AU 2004319953 B2 20101118; BR PI0418780 A 20071009; BR PI0418780 B1 20151229; CA 2562323 A1 20051201; CA 2562323 C 20110104; CN 100473927 C 20090401; CN 1946979 A 20070411; EA 010538 B1 20081030; EA 200601989 A1 20070227; EG 25056 A 20110720; EP 1740897 A1 20070110; EP 1740897 A4 20130130; HK 1101424 A1 20071018; JP 2007534923 A 20071129; JP 4551446 B2 20100929; KR 101118830 B1 20120322; KR 20070012814 A 20070129; MX PA06011644 A 20070123; MY 137287 A 20090130; NO 20065055 L 20070112; PE 20051002 A1 20051126; SA 05260083 B1 20090207; ZA 200607240 B 20080326
DOCDB simple family (application)
US 2004012792 W 20040426; AR P040103911 A 20041027; AU 2004319953 A 20040426; BR PI0418780 A 20040426; CA 2562323 A 20040426; CN 200480042852 A 20040426; EA 200601989 A 20040426; EG NA2006000858 A 20060913; EP 04822020 A 20040426; HK 07106105 A 20070607; JP 2007510667 A 20040426; KR 20067022354 A 20040426; MX PA06011644 A 20040426; MY PI20051722 A 20050419; NO 20065055 A 20061102; PE 2004001092 A 20041109; SA 05260083 A 20050409; ZA 200607240 A 20060830