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(11)

EP 1 651 740 A1

(12)

(43) Date of publication: 03.05.2006 Bulletin 2006/18 (21) Application number: 04741982.5 (22) Date of filing: 08.07.2004

(51) International Patent Classification (IPC):  C10L 1/14(1968.09) C10L 10/00(1968.09) C10L 1/02(1968.09) C10L 1/18(1968.09) C10L 10/04(1968.09) C10L 1/22(1968.09) (86) International application number: PCT/EP2004/051423 (87) International publication number: WO 2005/014759 (17.02.2005 Gazette 2005/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 15.07.2003 EP 03254454 (71) Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. 2596 HR Den Haag (NL)	(72) Inventors: GROVES, Adrian Philip Chester Cheshire CH2 4NU (GB) MORLEY, Christopher Chester Cheshire CH2 4NU (GB) SMITH, Johanne Chester Cheshire CH2 4NU (GB)