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EP 4 770 793 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24758894.0 (22) Date of filing: 26.07.2024

(51) International Patent Classification (IPC):  B01J 8/02(2006.01) B01J 12/00(2006.01) B01J 8/04(2006.01) (52) Cooperative Patent Classification (CPC): B01J 8/0285; B01J 8/0415; B01J 8/0407; B01J 8/0411; B01J 8/0423; B01J 8/0426; B01J 8/0438; B01J 8/0496; B01J 8/0214; B01J 2208/00415; B01J 2208/00398; B01J 2208/00884; B01J 2208/0092; B01J 2219/0809; B01J 2219/0815; B01J 2219/0839; B01J 2219/0833; B01J 12/007; B01J 8/0292; B01J 2219/00135; B01J 2219/30491 (86) International application number: PCT/IB2024/057248 (87) International publication number: WO 2025/046338 (06.03.2025 Gazette 2025/10)

(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: GE KH MA MD TN (30) Priority: 29.08.2023 IT 202300017721 (71) Applicant: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude 75007 Paris (FR)	(72) Inventors: AMBROSETTI, Matteo 27010 Miradolo Terme (IT) GROPPI, Gianpiero 20090 Segrate (IT) BERETTA, Alessandra 20134 Milano (IT) TRONCONI, Enrico 20862 Arcore (IT) (74) Representative: Air Liquide  L'Air Liquide S.A. Direction de la Propriété Intellectuelle 75, Quai d'Orsay 75321 Paris Cedex 07 75321 Paris Cedex 07 (FR)