(19)

(11)

EP 1 812 338 A1

(12)

(43) Date of publication: 01.08.2007 Bulletin 2007/31 (21) Application number: 05791679.3 (22) Date of filing: 05.10.2005

(51) International Patent Classification (IPC):  C01B 3/48(2006.01) C01B 3/38(2006.01) B01J 19/24(2006.01) (86) International application number: PCT/GB2005/050173 (87) International publication number: WO 2006/043111 (27.04.2006 Gazette 2006/17)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 18.10.2004 GB 0423081 (71) Applicant: CompactGTL plc Abingdon Oxfordshire OX14 1DY (GB)	(72) Inventor: BOWE, Michael Joseph Preston, Lancashire PR4 4JJ (GB) (74) Representative: Mansfield, Peter Turquand  Ipsolutions Fugro House Hithercroft Road Wallingford Oxfordshire OX10 9RB Oxfordshire OX10 9RB (GB)