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(11)

EP 4 334 017 A1

(12)

(43) Date of publication: 13.03.2024 Bulletin 2024/11 (21) Application number: 22727428.9 (22) Date of filing: 02.05.2022

(51) International Patent Classification (IPC):  B01D 53/14(2006.01) B01D 53/18(2006.01) (52) Cooperative Patent Classification (CPC): B01D 53/1475; B01D 53/1425; B01D 2252/103; B01D 2256/16; B01D 2256/245; B01D 2258/0283; B01D 53/18; Y02C 20/40 (86) International application number: PCT/IB2022/054036 (87) International publication number: WO 2022/234430 (10.11.2022 Gazette 2022/45)

(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: KH MA MD TN (30) Priority: 03.05.2021 IT 202100011162 (71) Applicant: Politecnico di Milano 20133 Milano (IT)	(72) Inventors: MANENTI, Flavio 20133 Milano MI (IT) PRIFTI, Kristiano 20133 Milano MI (IT) (74) Representative: Perani & Partners S.p.A.  Piazza Armando Diaz, 7 20123 Milano 20123 Milano (IT)