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EP 4 823 737 A2

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(88) Date of publication A3: 24.07.2025 (43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24837106.4 (22) Date of filing: 11.12.2024

(51) International Patent Classification (IPC):  B01J 20/02(2006.01) B01J 20/06(2006.01) B01J 20/28(2006.01) C01B 32/33(2017.01) C01B 32/384(2017.01) C02F 101/30(2006.01) B01D 53/02(2006.01) B01J 20/20(2006.01) B01J 20/30(2006.01) C01B 32/354(2017.01) C02F 1/28(2023.01) C02F 101/36(2006.01) (52) Cooperative Patent Classification (CPC): B01J 20/20; B01J 20/28019; B01J 20/28016; B01J 20/06; B01J 20/0285; B01J 20/28011; B01J 20/28057; B01J 20/28069; B01J 20/2803; B01J 20/3028; B01J 20/3042; B01J 20/3078; C02F 1/283; B01D 53/02; C02F 2101/103; C01B 32/318; C01P 2006/90; C01P 2006/14; C01P 2006/10; C01P 2006/12 (86) International application number: PCT/IB2024/000704 (87) International publication number: WO 2025/125896 (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: 11.12.2023 US 202363608695 P 28.12.2023 US 202363615687 P (71) Applicant: ARQ IP LIMITED London W1G 8TB (GB)

(72) Inventors: PASPEK, Stephen, Carl Broadview Heights, OH 44147 (US) UNSWORTH, John, Francis London W1G 8TB (GB) ADAMS, Jeramie, Joseph London W1G 8TB (GB) BASSHAM, Seth, Taylor London W1G 8TB (GB) RODRIGUEZ, Regina London W1G 8TB (GB) MAZYCK, David London W1G 8TB (GB) CANNON, Fred State College, PA 16803 (US) MITCHEK, Micala Denver, CO 80219 (US) SONG, Lingyan Englewood, CO 80111 (US) LI, Mowen Highlands, CO 80130 (US) PARK, David Naperville, IL 60540 (US) HUSTON, Robert Longmont, CO 80501 (US) WONG, Joseph, M. Castle Pines, CO 80108 (US) YACOE, Peter, M. Houston, TX 77066 (US) (74) Representative: Platzöder Patentanwaltsgesellschaft mbH  Inselkammerstraße 10 82008 Unterhaching 82008 Unterhaching (DE)