(19)

(11)

EP 2 637 757 A1

(12)

(43) Date of publication: 18.09.2013 Bulletin 2013/38 (21) Application number: 11781980.5 (22) Date of filing: 07.11.2011

(51) International Patent Classification (IPC):  B01B 1/00(2006.01) C01B 3/00(2006.01) B01J 19/00(2006.01) F23D 3/00(2006.01) (86) International application number: PCT/US2011/059520 (87) International publication number: WO 2012/064628 (18.05.2012 Gazette 2012/20)

(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: 04.11.2011 US 201113289215 09.11.2010 US 411512 P (71) Applicant: ExxonMobil Research and Engineering Company Annandale, NJ 08801-0900 (US)	(72) Inventors: GRENDA, Jeffrey, M. Houston, TX77005 (US) HERSHKOWITZ, Frank Basking Ridge NJ 07920 (US) (74) Representative: Plasman, Valérie M.L. et al ExxonMobil Chemical Europe Inc. IP Law Department Hermeslaan 2 1831 Machelen 1831 Machelen (BE)