EP 1318368 A1 20030611 - Air separation method to produce gaseous product at a variable flow rate
Title (en)
Air separation method to produce gaseous product at a variable flow rate
Title (de)
Luftzerlegungsverfahren zur Produktion von gasförmigem Produkt mit variabeler Durchflussmenge
Title (fr)
Méthode de séparation d'air pour la production d'un produit gazeux à débit variable
Publication
Application
Priority
EP 01310298 A 20011210
Abstract (en)
A method of producing a gaseous product, for instance gaseous oxygen in accordance with a cyclical demand pattern having high and low periods of demand. During periods of high demand, liquid is vaporised against condensing air which is in turn stored. During low demand periods, product is accumulated and previously stored liquid air is introduced into the column. During both high and low periods of demand liquid product is drawn to reduce the percentage variance in the required flow rate to the booster compressor used in producing the air to be liquefied. Preferably, during periods of high demand, a turbine used in generating refrigeration can be turned down to increase the amount of air available for condensation and with a reduction in production of liquid product.
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP)
F25J 3/0409 (2013.01); F25J 3/04103 (2013.01); F25J 3/04254 (2013.01); F25J 3/04296 (2013.01); F25J 3/04412 (2013.01); F25J 3/04509 (2013.01); F25J 3/04515 (2013.01); F25J 2210/40 (2013.01); F25J 2210/42 (2013.01); F25J 2215/40 (2013.01)
Citation (search report)
- [X] US 5526647 A 19960618 - GRENIER MAURICE [FR]
- [X] US 6062044 A 20000516 - DARREDEAU BERNARD [FR], et al
- [E] US 6357259 B1 20020319 - HIGGINBOTHAM PAUL [GB], et al
- [X] EP 0556861 A1 19930825 - PRAXAIR TECHNOLOGY INC [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01310298 A 20011210