EP 2313724 A2 20110427 - PROCESS AND DEVICE FOR CRYOGENIC AIR FRACTIONATION
Title (en)
PROCESS AND DEVICE FOR CRYOGENIC AIR FRACTIONATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR TIEFTEMPERATURZERLEGUNG VON LUFT
Title (fr)
PROCÉDÉ ET DISPOSITIF DE SÉPARATION DE L'AIR À BASSE TEMPÉRATURE
Publication
Application
Priority
- EP 2009005830 W 20090811
- DE 102008037693 A 20080814
Abstract (en)
[origin: WO2010017968A2] The process and the device serve for cryogenic air fractionation, in particular for supplying an oxygen-enriched product stream to an oxyfuel power plant. The distillation column system for nitrogen/oxygen separation has a high-pressure column (26) and a low-pressure column (32). The high-pressure column (26) and the low-pressure column (32) are thermally coupled via a condenser-evaporator (37). Feed air (1) is compressed in an air compressor (3), cooled at least in a first post-cooler (6) and purified in a purification device (22), cooled in a main heat exchanger (23a, 23b, 23c) and introduced at least in part (25, 29) into the high-pressure column (26). At least one liquid stream (33, 35) is introduced from the high-pressure column (26) into the low-pressure column (32). An oxygen-enriched product stream (41, 45, 46,47, 48) is taken off from the low-pressure column (32). A first nitrogen stream (63, 64, 65, 66) is withdrawn from the high-pressure column (26) and warmed to a temperature of at least 280 K (6). The warmed first nitrogen stream (67) is work-expanded (72) in a first warm expansion engine (68). The first nitrogen stream (70, 71) which is expanded in the first warm expansion engine (68) is work-expanded in a second warm expansion engine (72).
IPC 8 full level
CPC (source: EP US)
C01B 13/0248 (2013.01 - EP US); C01B 13/0259 (2013.01 - EP US); F25J 3/0409 (2013.01 - EP US); F25J 3/04157 (2013.01 - EP US); F25J 3/04181 (2013.01 - EP US); F25J 3/04206 (2013.01 - EP US); F25J 3/04218 (2013.01 - EP US); F25J 3/04309 (2013.01 - EP US); F25J 3/04412 (2013.01 - EP US); F25J 3/04533 (2013.01 - EP US); F25J 3/04581 (2013.01 - EP US); F25J 3/04618 (2013.01 - EP US); F25J 3/0486 (2013.01 - EP US); F25J 3/04878 (2013.01 - EP US); F25J 3/04957 (2013.01 - EP US); C01B 2210/0046 (2013.01 - EP US); F25J 2205/32 (2013.01 - EP US); F25J 2205/34 (2013.01 - EP US); F25J 2205/70 (2013.01 - EP US); F25J 2210/06 (2013.01 - EP US); F25J 2240/44 (2013.01 - EP US); F25J 2245/42 (2013.01 - EP US); F25J 2250/40 (2013.01 - EP US); F25J 2250/50 (2013.01 - EP US)
Citation (search report)
See references of WO 2010017968A2
Designated contracting state (EPC)
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 SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010017968 A2 20100218; WO 2010017968 A3 20121122; EP 2313724 A2 20110427; US 2011214453 A1 20110908
DOCDB simple family (application)
EP 2009005830 W 20090811; EP 09777817 A 20090811; US 200913058723 A 20090811