EP 2963371 B1 20180502 - METHOD AND DEVICE FOR CREATING A PRESSURISED GAS PRODUCT BY THE CRYOGENIC DECOMPOSITION OF AIR
Title (en)
METHOD AND DEVICE FOR CREATING A PRESSURISED GAS PRODUCT BY THE CRYOGENIC DECOMPOSITION OF AIR
Title (de)
VERFAHREN UND VORRICHTUNG ZUR GEWINNUNG EINES DRUCKGASPRODUKTS DURCH TIEFTEMPERATURZERLEGUNG VON LUFT
Title (fr)
PROCEDE ET DISPOSITIF DE PRODUCTION D'UN PRODUIT DE GAZ SOUS PRESSION PAR DECOMPOSITION A BASSE TEMPERATURE D'AIR
Publication
Application
Priority
- EP 14002308 A 20140705
- EP 15001884 A 20150625
Abstract (en)
[origin: CN105241178A] The invention relates to a method and a device for creating a pressurised gas product(72;73) by the cryogenic decomposition of air in a distillation column system, wherein the distillation column system comprises a high-pressure column (21) and a low-pressure column (22). The entire feed air is compressed in a main air compressor (2) to a first pressure. A first product flow (69; 75) is removed from the distillation column system in the liquid state, subjected to a pressure increase (71; 76) to a first product pressure, evaporated or pseudo-evaporated and heated in the main heat exchanger (13), and obtained as a first compressed-gas product (GOX IC; GAN IC). A third partial flow (37) is depressurized in the second air compressor (38) to a pressure which is at least 1bar higher than the operation pressure of the high-pressure column (21). The first part (339) of the third partial flow which works and is depressurized is continuously cooled, liquefied and then depressurized and led to the distillation column system.
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP US)
F25J 3/04018 (2013.01 - US); F25J 3/04024 (2013.01 - US); F25J 3/04054 (2013.01 - EP US); F25J 3/04084 (2013.01 - EP US); F25J 3/0409 (2013.01 - EP US); F25J 3/04145 (2013.01 - US); F25J 3/04175 (2013.01 - EP US); F25J 3/042 (2013.01 - EP US); F25J 3/0429 (2013.01 - EP); F25J 3/04296 (2013.01 - EP US); F25J 3/04381 (2013.01 - US); F25J 3/04393 (2013.01 - EP US); F25J 3/04412 (2013.01 - EP US); F25J 3/04678 (2013.01 - EP US); F25J 3/04721 (2013.01 - EP US); F25J 3/04812 (2013.01 - EP US); F25J 2200/52 (2013.01 - EP US); F25J 2205/04 (2013.01 - EP US); F25J 2245/50 (2013.01 - EP US)
Citation (opposition)
Opponent : AIR LIQUIDE
- US 5475980 A 19951219 - GRENIER MAURICE [US], et al
- FR 2776760 A1 19991001 - AIR LIQUIDE [FR]
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)
EP 2963371 A1 20160106; EP 2963371 B1 20180502; CN 105241178 A 20160113; CN 105241178 B 20200306; RU 2015126528 A 20170113; RU 2015126528 A3 20190201; RU 2696846 C2 20190806; TR 201808162 T4 20180723; TW 201615255 A 20160501; TW I691356 B 20200421; US 10995983 B2 20210504; US 2016187059 A1 20160630
DOCDB simple family (application)
EP 15001884 A 20150625; CN 201510388744 A 20150703; RU 2015126528 A 20150702; TR 201808162 T 20150625; TW 104121535 A 20150702; US 201514788909 A 20150701