Catalyst for cleaning exhaust gas
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United States of America Patent
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Apr 28, 1992
Grant Date -
N/A
app pub date -
Dec 30, 1988
filing date -
Mar 31, 1987
priority date (Note) -
Expired
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Abstract
An exhaust gas cleaner comprising a catalyst carrier on a heat-resistant filter, the catalyst comprising (a) one or more alkali metals, (b) one or more metals selected from the group consisting of Zn, Sn and transition metals excluding platinum-group metals, and (c) one or more rare earth metals, and a method of cleaning an exhaust gas with it. Alkali metals may be added to a fuel.
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