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Two component-three dimensional catalysis

United States Patent

March 12, 2002
View the Complete Patent at the US Patent & Trademark Office
This invention relates to catalytic reactor membranes having a gas-impermeable membrane for transport of oxygen anions. The membrane has an oxidation surface and a reduction surface. The membrane is coated on its oxidation surface with an adherent catalyst layer and is optionally coated on its reduction surface with a catalyst that promotes reduction of an oxygen-containing species (e.g., O.sub.2, NO.sub.2, SO.sub.2, etc.) to generate oxygen anions on the membrane. The reactor has an oxidation zone and a reduction zone separated by the membrane. A component of an oxygen containing gas in the reduction zone is reduced at the membrane and a reduced species in a reactant gas in the oxidation zone of the reactor is oxidized. The reactor optionally contains a three-dimensional catalyst in the oxidation zone. The adherent catalyst layer and the three-dimensional catalyst are selected to promote a desired oxidation reaction, particularly a partial oxidation of a hydrocarbon.
Schwartz; Michael (Boulder, CO), White; James H. (Boulder, CO), Sammells; Anthony F. (Boulder, CO)
Eltron Research, INC (Boulder, CO)
08/ 960,182
October 29, 1997
This invention was made with government support under DE-FG02-94ER81750, awarded by the Department of Energy. The United States Government has certain rights in this invention.