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EP 3 090 152 A1

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(43) Date of publication: 09.11.2016 Bulletin 2016/45 (21) Application number: 14806707.7 (22) Date of filing: 28.11.2014

(51) International Patent Classification (IPC):  F01N 3/20(2006.01) B01J 23/63(2006.01) B01J 23/847(2006.01) B01J 23/44(2006.01) B01J 37/02(2006.01) B01D 53/94(2006.01) B01J 23/83(2006.01) B01J 23/648(2006.01) B01J 35/10(2006.01) F01N 3/035(2006.01) (86) International application number: PCT/GB2014/053532 (87) International publication number: WO 2015/101766 (09.07.2015 Gazette 2015/27)

(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: 30.12.2013 US 201361921628 P 21.03.2014 GB 201405129 (71) Applicant: Johnson Matthey Public Limited Company London EC4A 4AB (GB)	(72) Inventors: RAJ, Agnes London EC4A 4AB (GB) FISHER, Janet Mary Reading Berkshire RG31 7YX (GB) THOMPSETT, David Reading Berkshire RG4 7BQ (GB) (74) Representative: Lenden, Philip  Johnson Matthey PLC Gate 20 Orchard Road Royston, Herts. SG8 5HE Royston, Herts. SG8 5HE (GB)