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(11)

EP 4 429 797 A2

(12)

(88) Date of publication A3: 07.09.2023 (43) Date of publication: 18.09.2024 Bulletin 2024/38 (21) Application number: 22850810.7 (22) Date of filing: 15.12.2022

(51) International Patent Classification (IPC):  B01D 53/04(2006.01) (52) Cooperative Patent Classification (CPC): B01D 2253/108; B01D 2256/16; B01D 2257/304; B01D 2257/504; C01B 17/04; B01D 53/229; B01D 53/261; B01D 53/265; B01D 53/0423; B01D 2259/4009; C01B 17/167; C01B 17/16 (86) International application number: PCT/US2022/052989 (87) International publication number: WO 2023/114385 (22.06.2023 Gazette 2023/25)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 15.12.2021 GR 20210100882 15.09.2022 US 202217945809 (71) Applicant: Saudi Arabian Oil Company Dhahran 31311 (SA)	(72) Inventors: LITHOXOOS, Georgios Dhahran, 31311 (SA) DUVAL, Sebastien A. Dhahran, 31311 (SA) OTHMAN, Rashid M. Dhahran, 31311 (SA) (74) Representative: Fish & Richardson P.C.  Highlight Business Towers Mies-van-der-Rohe-Straße 8 80807 München 80807 München (DE)