Fluid separation devices capable of operating under high...

Details Fluid separation devices capable of operating under high... Fluid separation devices capable of operating under high...

B - Operations, Transporting

01

D

B01D 71/02 (2006.01) B01D 53/22 (2006.01) C01B 13/02 (2006.01)

Patent

CA 2259756

The present invention presents a fluid separation device capable of separating oxygen from an oxygen-containing gaseous mixture which utilizes at least one solid-state membrane comprising a dense mixed conducting multicomponent metallic oxide layer formed from a mixed conducting multicomponent metallic oxide represented by the formula LnxA'x"xByB'yO3-z wherein Ln is an element selected from the f block lanthanides, A' is selected from Group 2, A" is selected from Groups 1, 2 and 3 and the f block lanthanides, and B,B' are independently selected from the d block transition metals, excluding titanium and chromium, wherein 0~x<1, 0~x"<1, 0~x"<1, 0<y<1.1,0~y'<1.1, x+x'+x"=1.0, 1.1>y+y'>1.0 and z is a number which renders the compoundcharge neutral. The subject mixed conducting multicomponent metallic oxides demonstrate improved resistance to degradation by carbon dioxide and sulfur dioxide and improved oxygen flux and reduced creep rates at operating temperature.

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