(19)

(11)

EP 1 606 497 A1

(12)

(43) Date of publication: 21.12.2005 Bulletin 2005/51 (21) Application number: 04709279.6 (22) Date of filing: 09.02.2004

(51) International Patent Classification (IPC)7: F01N 3/01, F01N 3/08, H05H 1/46, B01J 19/12, B01J 19/08, B01D 53/92, B01D 53/32, F01N 9/00, F01N 3/20, F01N 3/028 (86) International application number: PCT/GB2004/000504 (87) International publication number: WO 2004/070175 (19.08.2004 Gazette 2004/34)

(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 PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 08.02.2003 GB 0302905 (71) Applicant: THE UNIVERSITY OF LIVERPOOL Liverpool L69 3BX (GB)	(72) Inventors: LUCAS, James Liverpool L23 7XA (GB) AL-SHAMMA'A, Ahmed Ibrahim Liverpool L9 3AA (GB) (74) Representative: W.P. Thompson & Co.  Coopers Building Church Street Liverpool L1 3AB Liverpool L1 3AB (GB)