(19)
(11) EP 4 457 478 A2

(12)

(88) Date of publication A3:
10.08.2023

(43) Date of publication:
06.11.2024 Bulletin 2024/45

(21) Application number: 22854255.1

(22) Date of filing: 20.12.2022
(51) International Patent Classification (IPC): 
F25J 1/00(2006.01)
(52) Cooperative Patent Classification (CPC):
F25J 2210/42; F25J 1/001; F25J 1/005; F25J 1/0072; F25J 1/0077; F25J 1/0097; F25J 1/0221; F25J 1/0234; F25J 2260/44; F25J 3/04563; F25J 3/04539; F25J 1/0065; F25J 1/0067; F25J 1/0205; F25J 2270/16; F25J 1/0215; F25J 1/0245; F25J 3/04296; F25J 3/0409; F25J 3/04412; F25J 2250/02; F25J 3/04175
(86) International application number:
PCT/US2022/053549
(87) International publication number:
WO 2023/129434 (06.07.2023 Gazette 2023/27)
(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:
KH MA MD TN

(30) Priority: 30.12.2021 US 202163295509 P
26.08.2022 US 202217896953
26.08.2022 US 202217896967

(71) Applicant: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
75007 Paris (FR)

(72) Inventors:
  • TURNEY, Michael, A.
    Houston, TX 77024 (US)
  • GUILLARD, Alain
    Houston, TX 77024 (US)
  • CHAN, Bobby, Mon-flan
    Houston, TX 77024 (US)

(74) Representative: Air Liquide 
L'Air Liquide S.A. Direction de la Propriété Intellectuelle 75, Quai d'Orsay
75321 Paris Cedex 07
75321 Paris Cedex 07 (FR)

   


(54) PROCESS FOR PRECOOLING HYDROGEN FOR LIQUEFACTION WITH SUPPLEMENT LIQUID NITROGEN