EP 1050728 B1 20050615 - Single column process and device for cryogenic air separation
Title (en)
Single column process and device for cryogenic air separation
Title (de)
Einzelsäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft
Title (fr)
Procedé et installation de séparation des gaz de l'air à une seule colonne
Publication
Application
Priority
DE 19919933 A 19990430
Abstract (en)
[origin: EP1050728A1] Gas generation single-column fractionated distillation of air operates at lower pressure, reducing energy requirement withou sacrifice of process yield. A single-column process and assembly produces gases by the cryogenic fractionated distillation of air. The compressed incom air feed (101, 102, 103, 110) is first cooled (104) and fed (105, 114) to the column (107). An oxygen-rich liquid fraction (116) drawn from the column (107) and expanded (117) and fed to a condenser-evaporator (118). The oxygen is evaporated (118) by an indirect exchange of heat from condensed nitrogen (120) drawn from the upper section of the column (107). A portion (131) of the vapor (129, 130) generated by the condenser-evaporator (118) is compressed and fed (134, 135) to the column (118). A portion (10 110, 11) of the air feed (101) is released into the column (107) upstream of the inlet (114), where it decompresses to release energy.
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP)
F25J 3/04048 (2013.01); F25J 3/04296 (2013.01); F25J 3/04333 (2013.01); F25J 3/044 (2013.01); F25J 2200/72 (2013.01); F25J 2245/42 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1050728 A1 20001108; EP 1050728 B1 20050615; AT E298071 T1 20050715; DE 19919933 A1 20001102; DE 50010546 D1 20050721
DOCDB simple family (application)
EP 00108864 A 20000426; AT 00108864 T 20000426; DE 19919933 A 19990430; DE 50010546 T 20000426