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(11)

EP 4 823 974 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24904933.9 (22) Date of filing: 13.12.2024

(51) International Patent Classification (IPC):  C01B 3/02(2026.01) B01J 8/24(2006.01) B01J 8/18(2006.01) (52) Cooperative Patent Classification (CPC): C01B 2203/0272; C01B 2203/0255; C01B 2203/148; C01B 2203/0283; C01B 2203/0415; B01J 8/38; C01B 3/344; B01J 8/1881; B01J 8/26; B01J 8/36; B01J 8/003; B01J 8/005 (86) International application number: PCT/US2024/059937 (87) International publication number: WO 2025/128931 (19.06.2025 Gazette 2025/25)

(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: GE KH MA MD TN (30) Priority: 14.12.2023 US 202318540674 (71) Applicant: The Babcock & Wilcox Company Akron, OH 44305 (US)	(72) Inventors: DESELLEM, James F. Salineville, Ohio 43945 (US) HEIL, Karl M. Canton, Ohio 44720 (US) LARSON, Kevin A. Clinton, Ohio 44216 (US) VELAZQUEZ-VARGAS, Luis G. Copley, Ohio 44321 (US) FLYNN, Thomas J. Canton, Ohio 44720 (US) (74) Representative: D Young & Co LLP  3 Noble Street London EC2V 7BQ London EC2V 7BQ (GB)