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Due to the high economic, environmental, and safety costs associated with pure oxygen, mixedconducting oxygen-permeable ceramic membranes are being explored as an alternative oxygen source for hydrocarbon conversion reactors. This work reports a dramatic improvement in catalyst performance when an oxygen-permeable SrFeCo 0.5 O x ceramic membrane is used in conjunction with a conventional powder Pt/ZrO 2 catalyst for the CO 2 reforming of CH 4 . Experiments comparing catalyst performance with up to 2% co-fed oxygen to catalyst performance with oxygen from the ceramic membrane demonstrated a conversion three times higher with the membrane than with any amount of co-fed oxygen. The results suggest that membrane oxygen is more beneficial for catalyst activity and stability than molecular gas-phase oxygen.

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