Praseodymium-palladium binary oxide, catalyst compositions conta

Details Praseodymium-palladium binary oxide, catalyst compositions conta Praseodymium-palladium binary oxide, catalyst compositions conta

1991-04-12

1992-04-07

Breneman, R. Bruce

Chemistry of inorganic compounds

Rare earth compound

423593, 502302, C01F 1700

Patent

active

051026392

ABSTRACT:
A novel praseodymium-palladium oxide compound has the formula Pr.sub.4 PdO.sub.7. The compound has utility as a catalyst for oxidation of combustion mixtures comprising oxygen (e.g., air) and gaseous carbonaceous fuels such as methane and displays excellent regeneration characteristics after exposure to decomposition-causing temperatures. The compound may be used in a catalyst composition by being coated as a washcoat on a suitable carrier. Catalytic combustion processes are carried out by contacting such combustion mixture with the catalyst under combustion conditions, including catalytically supported thermal combustion. Regeneration of over-temperatured catalyst is also provided for.

REFERENCES:
patent: 3294701 (1966-12-01), Vogel et al.
patent: 4266978 (1981-05-01), Prochazka
patent: 4273945 (1981-06-01), Heilen et al.

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