(19)

(11)

EP 2 094 372 A2

(12)

(88) Date of publication A3: 16.04.2009 (43) Date of publication: 02.09.2009 Bulletin 2009/36 (21) Application number: 07874333.3 (22) Date of filing: 03.12.2007

(51) International Patent Classification (IPC):  B01D 53/14(2006.01) G01N 7/00(2006.01) B01J 19/00(2006.01) G01N 27/00(2006.01) (86) International application number: PCT/US2007/086292 (87) International publication number: WO 2008/140597 (20.11.2008 Gazette 2008/47)

(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 MT NL PL PT RO SE SI SK TR (30) Priority: 20.12.2006 US 613236 20.12.2006 US 613274 (71) Applicant: UOP LLC Des Plaines, Illinois 60017-5017 (US)	(72) Inventors: GALLOWAY, Douglas, B. Des Plaines, IL 60017-5017 (US) HOLT, Randall, E. Des Plaines, IL 60017-5017 (US) BULLEN, Patrick, J. Des Plaines, IL 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)