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A system and process for producing a high-purity product from a feed stream containing elemental oxygen by applying the feed stream to at least one separator including a feed zone and a permeate zone separated by a solid electrolyte membrane, and driving a portion of oxygen contained in the feed str

A system and process for producing a high-purity product from a feed stream containing elemental oxygen by applying the feed stream to at least one separator including a feed zone and a permeate zone separated by a solid electrolyte membrane, and driving a portion of oxygen contained in the feed stream from the feed zone to the permeate zone via the membrane by applying to the permeate zone a reactive purge stream containing a reactive gas which combines with oxygen to establish a lower partial pressure of oxygen in that zone. Oxygen-depleted retentate is withdrawn as a high-purity product stream.

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[ What is claimed is:] [1.] A process for producing a high-purity product from a feed stream containing elemental oxygen, comprising:applying said feed stream to a first separator including a first feed zone and a first permeate zone separated by a first solid electrolyte membrane capable of transpo

[ What is claimed is:] [1.] A process for producing a high-purity product from a feed stream containing elemental oxygen, comprising:applying said feed stream to a first separator including a first feed zone and a first permeate zone separated by a first solid electrolyte membrane capable of transporting oxygen ions;driving a first portion of oxygen contained in said feed stream from said first feed zone to said first permeate zone through said first membrane by applying a reactive purge stream to said first permeate zone, said reactive purge stream including a reactive gas that consumes oxygen to establish a lower partial pressure of oxygen in said first permeate zone; andobtaining an oxygen-depleted product stream after the first portion of oxygen has been driven from said first feed zone.