(19)

(11)

EP 4 770 951 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24765319.9 (22) Date of filing: 23.08.2024

(51) International Patent Classification (IPC):  C01B 3/00(2026.01) F25J 1/00(2006.01) B01J 19/24(2006.01) F17C 11/00(2006.01) (52) Cooperative Patent Classification (CPC): C01B 3/0089; F17C 11/005; B01J 19/24 (86) International application number: PCT/EP2024/025254 (87) International publication number: WO 2025/045390 (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 202300017715 (71) Applicant: NUOVO PIGNONE TECNOLOGIE - S.R.L. 50127 Florence (IT)	(72) Inventors: GIANNASI, Alessandra 50127 Florence (IT) MERLO, Roberto 50127 Florence (IT) NASINI, Ernesto 50127 Florence (IT) ARENA, Giovanni 50127 Florence (IT) (74) Representative: Illingworth-Law, William Illingworth  Baker Hughes 245 Hammersmith Chalk Hill Road London W6 8DW London W6 8DW (GB)