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Mixed-conducting oxygen permeable ceramic membranes for the carbon dioxide reforming of methane
Slade, David A. Duncan, Andrew M. Nordheden, Karen J. Williams, Susan Michelle
Slade, David A.
Duncan, Andrew M.
Nordheden, Karen J.
Williams, Susan Michelle
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Abstract
Due to the high economic, environmental, and safety costs associated with pure oxygen, mixed-conducting 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 SrFeCo0.5Ox ceramic membrane is used in conjunction with a conventional powder Pt/ZrO2 catalyst for the CO2 reforming of CH4. 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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This is the published version. Copyright 2007 Royal Society of Chemistry
Date
2007-02-01
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Royal Society of Chemistry
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Slade, David A., Andrew M. Duncan, Karen J. Nordheden, and Susan M. Stagg-Williams. "Mixed-conducting Oxygen Permeable Ceramic Membranes for the Carbon Dioxide Reforming of Methane." Green Chemistry Green Chem. 9.6 (2007): 577. http://dx.doi.org/10.1039/B614232J