EP 2591301 B1 20200902 - APPARATUS AND PROCESS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION
Title (en)
APPARATUS AND PROCESS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION
Title (de)
VORRICHTUNG UND VERFAHREN ZUR LUFTTRENNUNG DURCH KRYOGENE DESTILLATION
Title (fr)
APPAREIL ET PROCÉDÉ DE SÉPARATION D'AIR PAR DISTILLATION CRYOGÉNIQUE
Publication
Application
Priority
- FR 1055421 A 20100705
- FR 1055423 A 20100705
- EP 2011061279 W 20110705
Abstract (en)
[origin: WO2012004241A2] In a process for separating air by cryogenic distillation, an oxygen-rich stream having a first oxygen purity of less than 98 mol% oxygen is withdrawn from the column system (13, 15) and sent to a customer, an oxygen-rich liquid stream having a second oxygen purity, possibly lower than 98 mol% oxygen, is sent to a storage tank (31), liquid is periodically withdrawn from the storage tank and sent to a back-up reboiler, to produce a back-up product, and a liquid stream (21, 51) having a third oxygen purity, lower than the first purity, is withdrawn from the bottom of at least one column of the column system and/or from the auxiliary reboiler and sent to the storage tank as a purge stream during a stoppage in the operation of the column system.
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP US)
F25J 3/0204 (2013.01 - US); F25J 3/04 (2013.01 - US); F25J 3/0409 (2013.01 - EP US); F25J 3/04206 (2013.01 - EP US); F25J 3/04303 (2013.01 - EP US); F25J 3/04412 (2013.01 - EP US); F25J 3/04824 (2013.01 - EP US); F25J 3/04836 (2013.01 - EP US); F25J 3/0486 (2013.01 - EP US); F25J 2215/02 (2013.01 - EP US); F25J 2215/54 (2013.01 - EP US); F25J 2245/50 (2013.01 - EP US); F25J 2250/50 (2013.01 - EP US); F25J 2290/62 (2013.01 - EP US)
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012004241 A2 20120112; WO 2012004241 A3 20131128; CN 103282732 A 20130904; CN 103282732 B 20160803; CN 103282733 A 20130904; CN 103282733 B 20151125; EP 2591300 A2 20130515; EP 2591301 A2 20130515; EP 2591301 B1 20200902; ES 2820436 T3 20210421; US 2013098106 A1 20130425; US 2013133364 A1 20130530; US 9581386 B2 20170228; WO 2012004242 A2 20120112; WO 2012004242 A3 20131128
DOCDB simple family (application)
EP 2011061278 W 20110705; CN 201180033186 A 20110705; CN 201180033395 A 20110705; EP 11728893 A 20110705; EP 11728894 A 20110705; EP 2011061279 W 20110705; ES 11728894 T 20110705; US 201113805367 A 20110705; US 201113806794 A 20110705