(19)

(11)

EP 3 039 101 A1

(12)

(43) Date of publication: 06.07.2016 Bulletin 2016/27 (21) Application number: 14753107.3 (22) Date of filing: 21.08.2014

(51) International Patent Classification (IPC):  C10L 1/238(2006.01) C10L 1/14(2006.01) C10L 1/2383(2006.01) C10L 10/06(2006.01) C10L 1/22(2006.01) C10L 10/18(2006.01) C10L 1/2387(2006.01) (86) International application number: PCT/EP2014/067869 (87) International publication number: WO 2015/028392 (05.03.2015 Gazette 2015/09)

(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 Designated Extension States: BA ME (30) Priority: 27.08.2013 EP 13181878 (71) Applicant: BP Oil International Limited Sunbury on Thames, Middlesex TW16 7BP (GB)

(72) Inventors: ALLAN, Robert Edward Reading, Berkshire RG8 7QR (GB) DEWHURST, Ross Alexander Reading, Berkshire RG8 7QR (GB) GRUNDY, Michael John Reading, Berkshire RG8 7QR (GB) WILLIAMSON, David Michael Reading, Berkshire RG8 7QR (GB) (74) Representative: Pedley, Michael Ewan  BP International Limited Global Patents & Technology Law Chertsey Road Sunbury-on-Thames, Middlesex TW16 7LN Sunbury-on-Thames, Middlesex TW16 7LN (GB)