Process for recovering oxygen from gaseous mixtures...

B - Operations – Transporting – 01 – D

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B01D 71/02 (2006.01) B01D 53/32 (2006.01) C01B 13/02 (2006.01)

Patent

CA 2104819

The invention is a process for recovering oxygen from an oxygen-containing gaseous mixture containing one or more components selected from water, carbon dioxide or a volatile hydrocarbon which process utilizes ion transport membranescomprising a multicomponent metallic oxide containing barium. The process utilizes a temperature regime which overcomes problems associated with degradation of barium-containing multicomponent oxides caused by carbon dioxide.

La présente invention est un procédé pour récupérer l'oxygène à partir d'un mélange gazeux renfermant de l'oxygène et un ou plusieurs constituants choisis parmi l'eau, le dioxyde de carbone et un composé hydrocarboné volatil; le procédé utilise des membranes de transport ionique, à base d'oxydes métalliques multiples contenant du baryum, et un régime de température qui permet de surmonter les problèmes associés à la dégradation des oxydes métalliques multiples renfermant du baryum, causée par le dioxyde de carbone.

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