EP 3559576 A2 20191030 - CRYOGENIC AIR SEPARATION METHOD, AND AIR SEPARATION PLANT
Title (en)
CRYOGENIC AIR SEPARATION METHOD, AND AIR SEPARATION PLANT
Title (de)
VERFAHREN ZUR TIEFTEMPERATURZERLEGUNG VON LUFT UND LUFTZERLEGUNGSANLAGE
Title (fr)
PROCÉDÉ DE SÉPARATION CRYOGÉNIQUE D'AIR ET SYSTÈME DE SÉPARATION DE L'AIR
Publication
Application
Priority
- DE 102016015446 A 20161223
- EP 17020072 A 20170227
- EP 2017025365 W 20171220
Abstract (en)
[origin: WO2018114052A2] The present invention relates to a method for cryogenic air separation using an air separation plant (100) with a distillation column system (10) that comprises a high-pressure column (111) operated at a first pressure level, and a low-pressure column (112) operated at a second pressure level below the first pressure level. According to the invention, air in the air separation plant (100) is used to form one or more gaseous material flows which are subjected to isenthalpic expansion which is carried out starting from the first pressure level or a pressure level that differs from the first pressure level by not more than 1 bar, and through which a pressure difference of 3 to 6 bar is surmounted. The one or more gaseous material flows that is/are subjected to the gaseous expansion comprise a fluid amount of more than 500 standard cubic meters per hour, and the one or more gaseous material flows that is/are subjected to the gaseous expansion have an argon content of not more than 1 mole percent. The invention further relates to an air separation plant (100).
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP)
F25J 3/0409 (2013.01); F25J 3/04175 (2013.01); F25J 3/04296 (2013.01); F25J 3/04412 (2013.01); F25J 3/04678 (2013.01); F25J 3/04721 (2013.01); F25J 2240/10 (2013.01); F25J 2240/42 (2013.01); F25J 2240/44 (2013.01); F25J 2245/42 (2013.01); F25J 2245/50 (2013.01)
Citation (search report)
See references of WO 2018114052A2
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 2018114052 A2 20180628; WO 2018114052 A3 20181011; WO 2018114052 A9 20180816; EP 3559576 A2 20191030
DOCDB simple family (application)
EP 2017025365 W 20171220; EP 17844599 A 20171220