(19)

(11)

EP 3 820 593 A1

(12)

(43) Date of publication: 19.05.2021 Bulletin 2021/20 (21) Application number: 19737544.7 (22) Date of filing: 10.07.2019

(51) International Patent Classification (IPC):  B01D 53/22(2006.01) B01D 69/12(2006.01) B01D 67/00(2006.01) B01D 71/02(2006.01) (86) International application number: PCT/EP2019/068623 (87) International publication number: WO 2020/011892 (16.01.2020 Gazette 2020/03)

(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: 10.07.2018 EP 18182624 (71) Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) 1015 Lausanne (CH)	(72) Inventors: AGRAWAL, Kumar Varoon 1800 Vevey (CH) HE, Guangwei Cambridge, MA 02139 (US) (74) Representative: KATZAROV S.A.  European Patent Attorneys 12, Avenue des Morgines 1213 Petit-Lancy 1213 Petit-Lancy (CH)