(19)

(11)

EP 2 641 044 A1

(12)

(43) Date of publication: 25.09.2013 Bulletin 2013/39 (21) Application number: 11842423.3 (22) Date of filing: 08.11.2011

(51) International Patent Classification (IPC):  F25J 3/08(2006.01) (86) International application number: PCT/US2011/059711 (87) International publication number: WO 2012/067892 (24.05.2012 Gazette 2012/21)

(84) Designated Contracting States: 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 (30) Priority: 17.11.2010 US 414702 P (71) Applicant: Praxair Technology, Inc. Danbury, CT 06810 (US)	(72) Inventors: SUN, Zhijie Shanghai (CN) XIE, De-Cheng Shanghai (CN) CHENG, Alan, T. Naperville, IL 60564 (US) (74) Representative: Schwan - Schwan - Schorer  Bauerstrasse 22 80796 München 80796 München (DE)