(19)

(11)

EP 2 227 522 A1

(12)

(43) Date of publication: 15.09.2010 Bulletin 2010/37 (21) Application number: 08854287.3 (22) Date of filing: 25.11.2008

(51) International Patent Classification (IPC):  C10L 1/16(2006.01) C10L 1/18(2006.01) C10L 1/06(2006.01) C10L 1/02(2006.01) (86) International application number: PCT/EP2008/066171 (87) International publication number: WO 2009/068538 (04.06.2009 Gazette 2009/23)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 28.11.2007 EP 07121805 (71) Applicant: Shell Internationale Research Maatschappij B.V. 2596 HR The Hague (NL)	(72) Inventors: CLAYTON, Christopher, William Chester, Cheshire CH2 4NU (GB) PRICE, Richard, John Chester, Cheshire CH2 4NU (GB) TAIT, Nigel, Peter Chester, Cheshire CH2 4NU (GB) TAYLOR, Robert, Ian Chester, Cheshire CH2 4NU (GB) (74) Representative: Matthezing, Robert Maarten  Shell International B.V. Intellectual Property Services P.O. Box 384 2501 CJ The Hague 2501 CJ The Hague (NL)