EP 1880155 A2 20080123 - GAS STREAM PURIFICATION METHOD
Title (en)
GAS STREAM PURIFICATION METHOD
Title (de)
GASSTROMREINIGUNGSVERFAHREN
Title (fr)
PROCEDE D'EPURATION DE FLUX GAZEUX
Publication
Application
Priority
- US 2006014639 W 20060419
- US 11183705 A 20050422
Abstract (en)
[origin: US2006236719A1] A method of purifying a gas stream by removing oxygen from the gas stream in which the gas stream is introduced into a series of electrically driven oxygen separation zones that separate the oxygen from the gas stream. Each of the electrically driven oxygen separation zones has an electrolyte that conducts oxygen ions upon the application of the voltage to electrodes sandwiching the electrolyte. The voltage applied to each of the electrodes of the separation zones is selected such that an ionic current induced in the electrolyte within a particular zone that is no greater than a limiting current. When voltage is applied in such manner, the electrical power that is consumed is reduced over the power that would otherwise be consumed had a constant voltage been applied to all zones. The gas stream can be a crude argon stream obtained from a crude argon column or a crude nitrogen stream obtained from a pressure swing adsorption unit or a polymeric membrane unit.
IPC 8 full level
C25B 1/02 (2006.01); B01D 53/22 (2006.01); B01D 53/32 (2006.01)
CPC (source: EP KR US)
B01D 53/226 (2013.01 - EP US); B01D 53/32 (2013.01 - EP US); F25J 3/00 (2013.01 - KR); F25J 3/04733 (2013.01 - EP US); B01D 2256/10 (2013.01 - EP US); B01D 2256/18 (2013.01 - EP US); B01D 2257/104 (2013.01 - EP US); F25J 2205/80 (2013.01 - EP US); F25J 2230/58 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
US 2006236719 A1 20061026; BR PI0610021 A2 20111011; CA 2606332 A1 20061102; CA 2606332 C 20130212; CN 101495678 A 20090729; EP 1880155 A2 20080123; EP 1880155 A4 20101117; JP 2008538533 A 20081030; JP 5094708 B2 20121212; KR 20080010428 A 20080130; MX 2007013116 A 20080114; WO 2006115916 A2 20061102; WO 2006115916 A3 20090416
DOCDB simple family (application)
US 11183705 A 20050422; BR PI0610021 A 20060419; CA 2606332 A 20060419; CN 200680021997 A 20060419; EP 06750633 A 20060419; JP 2008507822 A 20060419; KR 20077027054 A 20071121; MX 2007013116 A 20060419; US 2006014639 W 20060419