EP 1446622 A1 20040818 - AIR DISTILLATION METHOD WITH ARGON PRODUCTION AND THE CORRESPONDING AIR DISTILLATION UNIT
Title (en)
AIR DISTILLATION METHOD WITH ARGON PRODUCTION AND THE CORRESPONDING AIR DISTILLATION UNIT
Title (de)
LUFTDESTILLATIONSVERFAHREN MIT ARGONHERSTELLUNG UND DIE ENTSPRECHENDE LUFTDESTILLATIONSEINHEIT
Title (fr)
PROCEDE DE DISTILLATION D'AIR AVEC PRODUCTION D'ARGON AT INSALLATION DE DISTILLATION D'AIR CORRESPONDANTE
Publication
Application
Priority
- FR 0203449 W 20021010
- FR 0114268 A 20011105
Abstract (en)
[origin: WO03040634A1] The invention relates to an air distillation method that employs at least two dual distillation columns (6A, 6B) and at least two argon columns (14A, 14B) which operate in parallel in order to distil air by forming at least two argon-enriched fluids (Ar/N/O). The argon-enriched fluids are mixed downstream from the argon columns and are subsequently compressed in a common compressor (42). The compressed fluids are then made to react in a common deoxygenation unit (46) in order to deoxygenate said fluids, thereby producing water. The fluids are then passed into at least one common drying unit (50). The deoxygenated and dried fluids are distilled in at least one denitrogenation column (18A, 18B) in order to form argon and a second nitrogen-enriched fluid.
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP US)
F25J 3/04412 (2013.01 - EP US); F25J 3/04678 (2013.01 - EP US); F25J 3/04739 (2013.01 - EP US); F25J 3/04963 (2013.01 - EP US); F25J 2205/60 (2013.01 - US); F25J 2205/82 (2013.01 - EP US); F25J 2230/58 (2013.01 - EP US)
Citation (search report)
See references of WO 03040634A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03040634 A1 20030515; AT E333080 T1 20060815; DE 60213121 D1 20060824; DE 60213121 T2 20070215; EP 1446622 A1 20040818; EP 1446622 B1 20060712; ES 2268158 T3 20070316; FR 2831953 A1 20030509; FR 2831953 B1 20040924; US 2004261453 A1 20041230
DOCDB simple family (application)
FR 0203449 W 20021010; AT 02802662 T 20021010; DE 60213121 T 20021010; EP 02802662 A 20021010; ES 02802662 T 20021010; FR 0114268 A 20011105; US 49469704 A 20040505