(19)

(11)

EP 4 237 123 A1

(12)

(43) Date of publication: 06.09.2023 Bulletin 2023/36 (21) Application number: 21815263.5 (22) Date of filing: 29.10.2021

(51) International Patent Classification (IPC):  B01D 53/00(2006.01) F24C 15/20(2006.01) A47J 36/38(2006.01) B01D 45/04(2006.01) (52) Cooperative Patent Classification (CPC): B01D 53/002; B01D 2257/7027; B01D 2258/0275; B01D 2258/02; F24C 15/20; B01D 45/04; B01D 53/24; B01D 2257/702 (86) International application number: PCT/IB2021/060034 (87) International publication number: WO 2022/091022 (05.05.2022 Gazette 2022/18)

(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: 30.10.2020 IT 202000025957 (71) Applicant: Politecnico Di Torino 10129 Torino (IT)	(72) Inventor: TRONVILLE, Paolo Maria 10129 Torino (IT) (74) Representative: Mola, Edoardo  Praxi Intellectual Property S.p.A. Corso Vittorio Emanuele II, 3 10125 Torino 10125 Torino (IT)