EP 0628096 A4 19950419 - INERT GAS PURIFYING SYSTEM.
Title (en)
INERT GAS PURIFYING SYSTEM.
Title (de)
INERTGASREINIGUNGSSYSTEM.
Title (fr)
SYSTEME DE PURIFICATION DE GAZ INERTES.
Publication
Application
Priority
- US 9301829 W 19930226
- US 84292092 A 19920228
Abstract (en)
[origin: WO9317156A1] A process and system for removing trace amounts of oxygen as an impurity in inert gases is disclosed. The process and system involve an electrochemical cell (15) containing an oxygen ion transporting, solid state metal oxide electrolyte having a high thermodynamic potential and having only one thermodynamically stable valence state for the metal ion component of the electrolyte. The electrolyte is coated with a perovskite anode and a metallic cathode. Operation is conducted at high voltages, e.g., 1.5 volts and above, at elevated temperatures. Purification of inert gases to an oxygen content of about 1 ppm is readily achievable.
IPC 1-7
IPC 8 full level
B01D 53/32 (2006.01); C01B 21/04 (2006.01); C01B 23/00 (2006.01)
CPC (source: EP)
B01D 53/326 (2013.01); C01B 21/0416 (2013.01); C01B 23/00 (2013.01); C01B 2210/0042 (2013.01); C01B 2210/0045 (2013.01)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9317156A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9317156 A1 19930902; EP 0628096 A1 19941214; EP 0628096 A4 19950419
DOCDB simple family (application)
US 9301829 W 19930226; EP 93906271 A 19930226