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(11)

EP 3 256 248 A1

(12)

(43) Date of publication: 20.12.2017 Bulletin 2017/51 (21) Application number: 16704892.5 (22) Date of filing: 10.02.2016

(51) International Patent Classification (IPC):  B01J 23/62(2006.01) B01J 23/60(2006.01) C01B 15/029(2006.01) B01J 37/16(2006.01) B01J 35/00(2006.01) B01J 23/89(2006.01) B01J 37/12(2006.01) (86) International application number: PCT/GB2016/050308 (87) International publication number: WO 2016/128738 (18.08.2016 Gazette 2016/33)

(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 Designated Validation States: MA MD (30) Priority: 13.02.2015 GB 201502411 (71) Applicant: University College Cardiff Consultants Limited South Glamorgan CF24 0DE (GB)	(72) Inventors: HUTCHINGS, Graham John Northallerton North Yorkshire DL6 3BA (GB) FREAKLEY, Simon Stoke-on-Trent Staffordshire ST2 7BY (GB) (74) Representative: Haseltine Lake LLP  Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)