(19)

(11)

EP 2 564 139 A2

(12)

(43) Date of publication: 06.03.2013 Bulletin 2013/10 (21) Application number: 11717717.0 (22) Date of filing: 19.04.2011

(51) International Patent Classification (IPC):  F25J 1/02(2006.01) (86) International application number: PCT/GB2011/050779 (87) International publication number: WO 2011/135335 (03.11.2011 Gazette 2011/44)

(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 (30) Priority: 30.04.2010 GB 201007297 (71) Applicant: Costain Oil, Gas&Process Limited Manchester, Greater Manchester M22 5WN (GB)	(72) Inventors: JOHNSON, Grant Manchester Greater Manchester M22 5WN (GB) EASTWOOD, Timothy Manchester Greater Manchester M22 5WN (GB) (74) Representative: Hamer, Christopher K. et al Mathys & Squire LLP 120 Holborn London EC1N 2SQ London EC1N 2SQ (GB)