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EP 4 539 986 A2

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(88) Date of publication A3: 11.04.2024 (43) Date of publication: 23.04.2025 Bulletin 2025/17 (21) Application number: 23732941.2 (22) Date of filing: 15.06.2023

(51) International Patent Classification (IPC):  B01J 31/02(2006.01) B01J 23/755(2006.01) C01B 3/26(2006.01) C08J 11/28(2006.01) B01J 23/745(2006.01) B01J 35/00(2024.01) B01J 23/70(2006.01) C08J 11/16(2006.01) B01J 19/12(2006.01) (52) Cooperative Patent Classification (CPC): C01B 3/26; B01J 37/346; B01J 31/0298; B01J 31/0279; B01J 31/0288; B01J 31/0277; B01J 23/70; B01J 23/755; B01J 31/0281; B01J 2231/005; B01J 19/126; C10B 53/07; C10B 57/06; C10B 19/00; C01B 3/22; B01J 2219/00047; B01J 7/00; B01J 23/745; B01J 35/45 (86) International application number: PCT/EP2023/066102 (87) International publication number: WO 2023/242335 (21.12.2023 Gazette 2023/51)

(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: 16.06.2022 EP 22382578 (71) Applicant: Fundación Centro de Investigación Cooperativa de Energías Alternativas, CIC Energigune Fundazioa 01510 Vitoria-Gasteiz, Álava (ES)

(72) Inventors: GARCIA-SUAREZ, Eduardo Jose 01510 Vitoria-Gasteiz, Álava (ES) DOPPIU, Stefania 01510 Vitoria-Gasteiz, Álava (ES) TORRE, Francesco 01510 Vitoria-Gasteiz, Álava (ES) PALOMO DEL BARRIO, Elena 01510 Vitoria-Gasteiz, Álava (ES) PÉREZ ARCE, Jonatan 01510 Vitoria-Gasteiz, Álava (ES) (74) Representative: ABG Intellectual Property Law, S.L.  Avenida de Burgos, 16D Edificio Euromor 28036 Madrid 28036 Madrid (ES)