(19)

(11)

EP 2 054 490 A2

(12)

(88) Date of publication A3: 07.08.2008 (43) Date of publication: 06.05.2009 Bulletin 2009/19 (21) Application number: 07811446.9 (22) Date of filing: 21.08.2007

(51) International Patent Classification (IPC):  C10G 75/04(2006.01) C11D 11/00(2006.01) F28G 9/00(2006.01) B08B 9/02(2006.01) (86) International application number: PCT/US2007/018443 (87) International publication number: WO 2008/024323 (28.02.2008 Gazette 2008/09)

(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 Designated Extension States: AL BA HR MK RS (30) Priority: 23.08.2006 US 508251 (71) Applicant: ExxonMobil Research and Engineering Company Annandale, NJ 08801-0900 (US)

(72) Inventors: BRONS, Glen, Barry Phillipsburg, NJ 08865 (US) MEYER, Douglas, Scott Fromberg, MT 59029 (US) HARANDI, Mohsen, N. Leesburg, VA 20176 (US) DUGGAL, Praveen Baton Rouge, LA 70809 (US) BRYANT, Douglas, P. Seabrook, TX 77586 (US) COY, Manuel, Ricardo Baytown, TX 77521 (US) DOUGHERTY, Jack, C. Houston, TX 77059 (US) (74) Representative: Veldhuizen, Albert Dirk Willem  ExxonMobil Chemical Europe Inc. IP Law Shared Services P.O. Box 105 Hermeslaan 2 1831 Machelen 1831 Machelen (BE)