Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1991-02-06
1993-01-26
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502302, 502304, 502324, 502337, 502338, 502344, 502355, 502524, 502525, 4232132, 4232135, B01J 2310, B01J 2326, B01J 2334
Patent
active
051822490
ABSTRACT:
A non-precious metal three-way catalyst which reduces hydrocarbon, carbon monoxide, and nitrogen oxide from internal combustion engine exhaust and industrial emissions, with a conversion capability comparable to the conversion efficiencies of current precious metal catalysts, and with superior NO.sub.x conversion characteristics, and durable when operated under prolonged high temperature conditions. The light-off temperature is close to the light-off temperature of convertional precious metal catalysts. The active catalytic components in this catalyst are a mixture of rare-earth metal and non-noble metal oxides.
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Wang Ren
Wu Shanliang
Zhang Zhigang
East China University of Chemical Technology
Shine W. J.
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