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(11)

EP 4 330 187 A1

(12)

(43) Date of publication: 06.03.2024 Bulletin 2024/10 (21) Application number: 22720510.1 (22) Date of filing: 26.04.2022

(51) International Patent Classification (IPC):  C01B 3/38(2006.01) B01D 53/14(2006.01) C01B 3/56(2006.01) E21B 41/00(2006.01) F25J 3/04(2006.01) B01D 53/047(2006.01) C01B 3/48(2006.01) C01B 32/50(2017.01) E21B 43/16(2006.01) (52) Cooperative Patent Classification (CPC): C01B 3/382; C01B 3/48; C01B 3/56; C01B 32/50; B01D 53/047; F25J 3/04533; F25J 3/04539; E21B 43/164; F25J 2260/80; B01D 2256/16; B01D 2257/504 (86) International application number: PCT/IB2022/053855 (87) International publication number: WO 2022/229838 (03.11.2022 Gazette 2022/44)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 27.04.2021 IT 202100010631 (71) Applicant: Energean Italy S.P.A. 20154 Milano (MI) (IT)	(72) Inventor: GRECO, Giuseppe 20851 Lissone (MB) (IT) (74) Representative: Bottero, Carlo et al Barzanò & Zanardo Milano S.p.A. Via Borgonuovo, 10 20121 Milano 20121 Milano (IT)