(19)

(11)

EP 2 425 102 A2

(12)

(88) Date of publication A3: 05.05.2011 (43) Date of publication: 07.03.2012 Bulletin 2012/10 (21) Application number: 10714004.8 (22) Date of filing: 21.04.2010

(51) International Patent Classification (IPC):  F01K 13/00(2006.01) C02F 1/04(2006.01) C02F 1/06(2006.01) F01K 23/10(2006.01) B01D 3/06(2006.01) C02F 1/16(2006.01) C01D 3/16(2006.01) (86) International application number: PCT/EP2010/055239 (87) International publication number: WO 2010/124972 (04.11.2010 Gazette 2010/44)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 30.04.2009 EP 09159259 (71) Applicant: Alstom Technology Ltd 5400 Baden (CH)	(72) Inventors: DRENIK, Olivier F-90000 Belfort (FR) BRESCHI, Dario F-90400 Vezelois (FR) (74) Representative: Hellwig, Tillmann Johannes  Dreiss Patentanwälte Gerokstrasse 1 70188 Stuttgart 70188 Stuttgart (DE)