(19)

(11)

EP 2 411 120 A1

(12)

(43) Date of publication: 01.02.2012 Bulletin 2012/05 (21) Application number: 10703582.6 (22) Date of filing: 01.02.2010

(51) International Patent Classification (IPC):  B01D 53/14(2006.01) B01D 53/78(2006.01) B01D 53/62(2006.01) (86) International application number: PCT/US2010/022710 (87) International publication number: WO 2010/110939 (30.09.2010 Gazette 2010/39)

(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: 27.03.2009 US 164185 P 30.10.2009 US 609076 (71) Applicant: Alstom Technology Ltd 5400 Baden (CH)	(72) Inventors: KOZAK, Frederic Z. Knoxville Tennessee 37923 (US) PETIG, Arlyn, V. Knoxville Tennessee 37923 (US) SHABDE, Vikram Knoxville Tennessee 37932 (US) (74) Representative: Simonsson, Erik  Awapatent AB P.O. Box 5117 20071 Malmö 20071 Malmö (SE)