EP 2564139 B1 20200617 - PROCESS AND APPARATUS FOR THE LIQUEFACTION OF NATURAL GAS
Title (en)
PROCESS AND APPARATUS FOR THE LIQUEFACTION OF NATURAL GAS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR VERFLÜSSIGUNG VON ERDGAS
Title (fr)
PROCÉDÉ ET APPAREIL DE LIQUÉFACTION DE GAZ NATUREL
Publication
Application
Priority
- GB 201007297 A 20100430
- GB 2011050779 W 20110419
Abstract (en)
[origin: GB2479940A] A process for liquefaction of natural gas comprising the steps of: compressing a fluid refrigerant 550; cooling the compressed refrigerant 500 in heat exchange with a cooling fluid to provide a cooled compressed refrigerant 525; work-expanding at least a first portion of the cooled compressed refrigerant 525 in a first turbo-expander 530 to provide an expanded cooled refrigerant 535; reheating the expanded cooled refrigerant 535 in a liquefaction heat exchange system 505 to provide a reheated refrigerant 550; returning the reheated refrigerant 550 to be recompressed; providing a natural gas feed stream 400; compressing the natural gas feed stream 400; passing the compressed natural gas feed stream 410 directly or indirectly to heat exchange with the expanded cooled refrigerant 535 in the liquefaction heat exchange system 505; and withdrawing a cooled and at least partly condensed natural gas product 450 from the liquefaction heat exchange system 440; wherein the first turbo-expander 530 is used to drive a compressor 405 to compress the natural gas feed stream 400. There may be a second turbo-expander to drive the refrigerant compressor, and the refrigerant may be nitrogen. An apparatus for performing the method is also disclosed.
IPC 8 full level
F25J 1/02 (2006.01)
CPC (source: EP GB)
F25J 1/0022 (2013.01 - EP); F25J 1/0035 (2013.01 - EP); F25J 1/0037 (2013.01 - EP); F25J 1/005 (2013.01 - EP); F25J 1/0052 (2013.01 - EP); F25J 1/0062 (2013.01 - EP); F25J 1/0065 (2013.01 - EP); F25J 1/007 (2013.01 - EP); F25J 1/0072 (2013.01 - EP); F25J 1/0082 (2013.01 - EP); F25J 1/0085 (2013.01 - EP); F25J 1/009 (2013.01 - EP); F25J 1/0097 (2013.01 - EP); F25J 1/02 (2013.01 - GB); F25J 1/0204 (2013.01 - EP); F25J 1/0205 (2013.01 - EP); F25J 1/0208 (2013.01 - EP); F25J 1/0215 (2013.01 - EP); F25J 1/0216 (2013.01 - EP); F25J 1/0278 (2013.01 - EP); F25J 1/0288 (2013.01 - EP); F25J 3/061 (2013.01 - EP); F25J 3/0635 (2013.01 - EP); F25J 3/064 (2013.01 - EP); F25J 2220/62 (2013.01 - EP); F25J 2230/20 (2013.01 - EP); F25J 2230/30 (2013.01 - EP); F25J 2240/02 (2013.01 - EP); F25J 2240/40 (2013.01 - EP); F25J 2270/16 (2013.01 - EP)
Citation (examination)
US 5768912 A 19980623 - DUBAR CHRISTOPHER ALFRED [AU]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR 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)
GB 201007297 D0 20100616; GB 2479940 A 20111102; GB 2479940 B 20120905; AU 2011247081 A1 20121213; AU 2011247081 B2 20170209; EP 2564139 A2 20130306; EP 2564139 B1 20200617; WO 2011135335 A2 20111103; WO 2011135335 A3 20150326
DOCDB simple family (application)
GB 201007297 A 20100430; AU 2011247081 A 20110419; EP 11717717 A 20110419; GB 2011050779 W 20110419