EP 4317876 A1 20240207 - METHOD AND AN APPARATUS FOR LIQUEFYING HYDROGEN
Title (en)
METHOD AND AN APPARATUS FOR LIQUEFYING HYDROGEN
Title (de)
VERFAHREN UND VORRICHTUNG ZUR VERFLÜSSIGUNG VON WASSERSTOFF
Title (fr)
PROCÉDÉ ET APPAREIL DE LIQUÉFACTION D'HYDROGÈNE
Publication
Application
Priority
EP 22020376 A 20220805
Abstract (en)
The present invention relates to a method for liquefying hydrogen, wherein a gaseous hydrogen stream (A, A') is subjected to precooling in a hydrogen precooling heat exchanger arrangement (20) and thereafter to further cooling and liquefaction in a hydrogen liquefaction heat exchanger arrangement (20) operated with a hydrogen cooling cycle, wherein said precooling is performed using nitrogen streams (N1, N2, N3) heated in a hydrogen precooling heat exchanger (50) of the hydrogen precooling heat exchanger arrangement (20). Said nitrogen streams (N1, N2, N3) include a first nitrogen stream (N1) supplied to the hydrogen precooling heat exchanger (50) at the cold end with a proportion of liquid of at least 80% and at a first nitrogen pressure level of 1 to 1.5 bar absolute pressure, and a second nitrogen stream (N2) supplied to the hydrogen precooling heat exchanger (50) at an intermediate position in a subcooled and liquid state at a second nitrogen pressure level of 30 to 55 bar absolute pressure. A corresponding apparatus (100-500) is also part of the present invention.
IPC 8 full level
CPC (source: EP)
F25J 1/001 (2013.01); F25J 1/0015 (2013.01); F25J 1/0035 (2013.01); F25J 1/0037 (2013.01); F25J 1/004 (2013.01); F25J 1/0045 (2013.01); F25J 1/005 (2013.01); F25J 1/0052 (2013.01); F25J 1/0067 (2013.01); F25J 1/0072 (2013.01); F25J 1/0202 (2013.01); F25J 1/0205 (2013.01); F25J 1/0236 (2013.01); F25J 1/025 (2013.01); F25J 1/0288 (2013.01); F25J 2240/60 (2013.01); F25J 2245/90 (2013.01); F25J 2270/06 (2013.01); F25J 2270/16 (2013.01); F25J 2290/34 (2013.01)
Citation (applicant)
U. CARDELLA ET AL.: "Economically viable large-scale hydrogen liquefaction", IOP CONF. SERIES: MATERIALS SCIENCE AND ENGINEERING, vol. 171, 2017, pages 012013
Citation (search report)
- [Y] JP 2004210597 A 20040729 - TOSHIBA CORP
- [Y] US 2017010041 A1 20170112 - PIERRE JR FRITZ [US], et al
- [Y] US 5579655 A 19961203 - GRENIER MAURICE [FR]
- [A] US 2018292128 A1 20181011 - DEGENSTEIN NICK J [US], et al
- [A] US 3398545 A 19680827 - NELSON WARREN L, et al
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22020376 A 20220805