(19)

(11)

EP 1 963 766 A2

(12)

(88) Date of publication A3: 21.02.2008 (43) Date of publication: 03.09.2008 Bulletin 2008/36 (21) Application number: 06850286.3 (22) Date of filing: 13.12.2006

(51) International Patent Classification (IPC):  F25J 3/08(2006.01) (86) International application number: PCT/US2006/062038 (87) International publication number: WO 2007/111738 (04.10.2007 Gazette 2007/40)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 21.12.2005 US 752451 P (71) Applicant: UOP LLC Des Plaines, IL 60017-5017 (US)	(72) Inventors: DAVIS, Mark, M. Des Plaines, Illinois 60017-5017 (US) LOW, John, J. Des Plaines, Illinois 60017-5017 (US) (74) Representative: Hayes, Adrian Chetwynd et al Boult Wade Tennant, Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)