EP 1469265 B1 20060531 - Process for nitrogen liquefaction by recovering the cold derived from liquid methane gasification
Title (en)
Process for nitrogen liquefaction by recovering the cold derived from liquid methane gasification
Title (de)
Verfahren zur Stickstoffverflüssigung durch Ausnutzung der Verdampfungskälte von flüssigem Methan
Title (fr)
Procédé de liquéfaction d'azote en récupérant le froid obtenu par la vaporisation de méthane liquide
Publication
Application
Priority
IT BG20030027 A 20030408
Abstract (en)
[origin: EP1469265A1] This process for nitrogen liquefaction by recovering the cold derived from liquid methane gasification has the characteristic of cooling with the liquid methane (1) a cryogenic fluid (5), preferably nitrogen, and then using said cryogenic fluid as coolant fluid (9,10) in two nitrogen compressor units of the nitrogen liquefier, both for the interstage coolers (11,12,13,27,28,29,30,31,32) and for the intake coolers (27) and for the final delivery coolers (19,32) of one of the nitrogen compressor unit. <??>The use of nitrogen cooled by the methane enables liquid nitrogen to be produced (3) in a liquefier consisting of the two said compressor units and a cryogenic turbine (17), with a very low specific energy consumption. <IMAGE>
IPC 8 full level
F25J 1/02 (2006.01); F17C 9/04 (2006.01); F25J 3/04 (2006.01)
CPC (source: EP)
F25J 1/0015 (2013.01); F25J 1/005 (2013.01); F25J 1/0072 (2013.01); F25J 1/0204 (2013.01); F25J 1/0222 (2013.01); F25J 1/0234 (2013.01); F25J 1/0268 (2013.01); F25J 1/0292 (2013.01); F25J 1/0297 (2013.01); F25J 3/0406 (2013.01); F25J 3/04254 (2013.01); F25J 3/04351 (2013.01); F25J 2210/62 (2013.01); F25J 2230/08 (2013.01); F25J 2230/30 (2013.01); F25J 2230/42 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1469265 A1 20041020; EP 1469265 B1 20060531; AT E328258 T1 20060615; DE 602004001004 D1 20060706; DE 602004001004 T2 20061214; ES 2264059 T3 20061216; IT BG20030027 A1 20041009; PT 1469265 E 20060929; SI 1469265 T1 20061031
DOCDB simple family (application)
EP 04007031 A 20040324; AT 04007031 T 20040324; DE 602004001004 T 20040324; ES 04007031 T 20040324; IT BG20030027 A 20030408; PT 04007031 T 20040324; SI 200430051 T 20040324