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1. A process of adsorbing oxygen from a feed stream comprising oxygen, nitrogen, and water, comprising passing the feed stream through one or more beds of adsorbent comprising a first adsorbent selective for water so as to adsorb water from the feed stream and a second adsorbent selective for oxygen so as to adsorb oxygen from the feed stream, thereby producing a rejection product stream enriched in nitrogen and depleted in oxygen and water, wherein the first adsorbent comprises a dehydration adsorbent and the second adsorbent comprise ITQ-55; wherein the zeolite ITQ-55 has a mean crystal particle size within the range of from about 0.1 microns to about 40 microns; wherein the feed stream is exposed to the first adsorbent at effective conditions to remove water from the feed stream; and wherein the feed stream is exposed to the second adsorbent at effective conditions for performing a kinetic separation, in which the kinetic separation exhibits greater kinetic selectivity for oxygen than for nitrogen.
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