EP 3207320 A1 20170823 - METHOD AND DEVICE FOR VARIABLY OBTAINING ARGON BY MEANS OF LOW-TEMPERATURE SEPARATION
Title (en)
METHOD AND DEVICE FOR VARIABLY OBTAINING ARGON BY MEANS OF LOW-TEMPERATURE SEPARATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR VARIABLEN GEWINNUNG VON ARGON DURCH TIEFTEMPERATURZERLEGUNG
Title (fr)
PROCÉDÉ ET DISPOSITIF DE RÉCUPÉRATION VARIABLE D'ARGON PAR FRACTIONNEMENT À BASSE TEMPÉRATURE
Publication
Application
Priority
- EP 14003544 A 20141016
- EP 2015001886 W 20150923
Abstract (en)
[origin: WO2016058666A1] The method and device are used to variably obtain argon by means of low-temperature separation. Feed air (1, 4, 7) is cooled in a main heat exchanger (8) and then conducted into a distillation column system which has a high-pressure column (10) and a low-pressure column (11). During an argon obtaining process using a crude argon column (81, 82) and a purified argon column (3), a purified liquid argon product flow (72) is generated from an argon-enriched flow (80) from the low-pressure column (11). In a first operating mode, a first purified argon product quantity is discharged as the end product, and in a second operating mode, a reduced purified argon product quantity is discharged as the end product. In the second operating mode, a gaseous argon return flow (101, 103) is drawn from the crude argon column or the purified argon column and heated in a separate passage (108) of the main heat exchanger (8).
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: CN EP KR RU US)
F25J 3/0409 (2013.01 - CN EP KR RU US); F25J 3/04412 (2013.01 - CN EP KR RU US); F25J 3/04678 (2013.01 - CN EP KR RU US); F25J 3/04703 (2013.01 - CN EP KR RU US); F25J 3/04727 (2013.01 - CN EP KR RU US); F25J 3/04812 (2013.01 - CN EP KR RU US); F25J 2235/58 (2013.01 - EP); F25J 2245/50 (2013.01 - CN EP KR US); F25J 2245/58 (2013.01 - CN EP KR US)
Citation (search report)
See references of WO 2016058666A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016058666 A1 20160421; BR 112017006788 A2 20171226; CA 2963023 A1 20160421; CL 2017000874 A1 20171211; CN 107076512 A 20170818; CN 107076512 B 20200519; EP 3207320 A1 20170823; EP 3207320 B1 20210630; JP 2017536523 A 20171207; KR 20170070172 A 20170621; PL 3207320 T3 20211213; RU 2017116601 A 20181119; RU 2017116601 A3 20190328; RU 2700970 C2 20190924; US 10690408 B2 20200623; US 2017299262 A1 20171019
DOCDB simple family (application)
EP 2015001886 W 20150923; BR 112017006788 A 20150923; CA 2963023 A 20150923; CL 2017000874 A 20170410; CN 201580056010 A 20150923; EP 15771022 A 20150923; JP 2017520373 A 20150923; KR 20177013061 A 20150923; PL 15771022 T 20150923; RU 2017116601 A 20150923; US 201515513180 A 20150923