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(11)

EP 4 816 316 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24817257.9 (22) Date of filing: 28.11.2024

(51) International Patent Classification (IPC):  C01B 3/12(2006.01) C10K 3/02(2006.01) C10G 2/00(2006.01) (52) Cooperative Patent Classification (CPC): C01B 3/12; C10K 3/026; C10G 2/32; C01B 2203/062; C01B 2203/085; C01B 2203/148; C01B 2203/16; C10K 3/04 (86) International application number: PCT/EP2024/083935 (87) International publication number: WO 2025/114448 (05.06.2025 Gazette 2025/23)

(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: 29.11.2023 DK PA202330358 (71) Applicant: Topsoe A/S 2800 Kgs. Lyngby (DK)	(72) Inventors: DE SARKAR, Sudip 2800 Kgs. Lyngby (DK) CHRISTENSEN, Thomas, Sandahl 2800 Kgs. Lyngby (DK) AASBERG-PETERSEN, Kim 2800 Kgs. Lyngby (DK) (74) Representative: Topsoe A/S  Haldor Topsøes Allé 1 2800 Kgs. Lyngby 2800 Kgs. Lyngby (DK)