EP 0758733 B1 20001102 - Air separation process and apparatus by low temperature rectification
Title (en)
Air separation process and apparatus by low temperature rectification
Title (de)
Verfahren und Vorrichtung zur Luftzerlegung durch Tieftemperaturrektifikation
Title (fr)
Procédé de séparation d'air par rectification à basse température
Publication
Application
Priority
DE 19529681 A 19950811
Abstract (en)
[origin: EP0758733A2] Low temp. rectification is used for air sepn. by a process in which air (1) is compressed (3) to at least the max. pressure within the rectifier column system (16) and is split into a first stream (4) as charge to the system and second stream (5) as oxidn. agent in a chemical reaction (6). First stream is cooled (14) to dew point temp. and is introduced (15) into one rectifier column (17). Liq. prod. stream (27) is withdrawn from the column and its pressure is increased (28). Process stream (30) of low temp. rectification is re-compressed to pressure above max. system pressure. Prod. stream is evapd. by indirect heat exchange (14) with at least part of re-compressed process stream. At least part of energy of expansion of off gas (8) of chemical reaction is used for the re-compression.
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP US)
F25J 3/04018 (2013.01 - EP US); F25J 3/04024 (2013.01 - EP US); F25J 3/0403 (2013.01 - EP US); F25J 3/0409 (2013.01 - EP US); F25J 3/04103 (2013.01 - EP US); F25J 3/04127 (2013.01 - EP US); F25J 3/04145 (2013.01 - EP US); F25J 3/04296 (2013.01 - EP US); F25J 3/04357 (2013.01 - EP US); F25J 3/04412 (2013.01 - EP US); F25J 3/046 (2013.01 - EP US); Y10S 62/915 (2013.01 - EP US)
Designated contracting state (EPC)
DE DK FR GB NL
DOCDB simple family (publication)
DE 19529681 A1 19970213; DE 19529681 C2 19970528; DE 59606078 D1 20001207; DK 0758733 T3 20010115; EP 0758733 A2 19970219; EP 0758733 A3 19970730; EP 0758733 B1 20001102; US 5845517 A 19981208
DOCDB simple family (application)
DE 19529681 A 19950811; DE 59606078 T 19960805; DK 96112620 T 19960805; EP 96112620 A 19960805; US 69560196 A 19960812