B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/32 (2006.01) B01D 57/02 (2006.01) C01B 13/02 (2006.01) C25B 1/02 (2006.01)
Patent
CA 2280630
An electrochemical device for separating oxygen from an oxygen-containing gas comprises a plurality of planar ion-conductive solid electrolyte plates and electrically- conductive gas-impermeable interconnects assembled in a multi-cell stack. Electrically- conductive anode and cathode material is applied to opposite sides of each electrolyte plate. A gas-tight anode seal is bonded between the anode side of each electrolyte plate and the anode side of the adjacent interconnect. A regulating electrode, applied to the anode side of each electrolyte plate between the anode seal and the edge of the anode, eliminates anode seal failure by maintaining the 24-hour anode seal power density below about 1.5 µW/cm2. A gas-tight seal is applied between the cathode sides of each electrolyte plate and the adjacent interconnect such that the anode and cathode seals are radially offset on opposite sides of the plate. The combination of regulating electrodes and offset seals is particularly effective in eliminating anode seal failure.
Adler Stuart
Dyer Paul Nigel
Richards Robin Edward
Air Products And Chemicals Inc.
Mcfadden Fincham
LandOfFree
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