(19)

(11)

EP 2 242 823 A1

(12)

(43) Date of publication: 27.10.2010 Bulletin 2010/43 (21) Application number: 09701564.8 (22) Date of filing: 16.01.2009

(51) International Patent Classification (IPC):  C10M 133/40(2006.01) C10M 177/00(2006.01) C10M 169/06(2006.01) (86) International application number: PCT/EP2009/050483 (87) International publication number: WO 2009/090238 (23.07.2009 Gazette 2009/30)

(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 MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 16.01.2008 EP 08100550 (71) Applicant: Shell Internationale Research Maatschappij B.V. 2596 HR The Hague (NL)	(72) Inventor: WHEATLEY, Alan Richard 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)