Exhaust gas purification method using selective reduction catalyst
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United States of America Patent
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Issued Date -
Oct 29, 2009
app pub date -
Apr 23, 2009
filing date -
Apr 28, 2008
priority date (Note) -
Abandoned
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Abstract
An exhaust gas purification method which is capable of purifying nitrogen oxide to be included in exhaust gas from a lean burn engine such as a boiler, a gas turbine or a lean-burn-type gasoline engine, a diesel engine, effectively, in particular, even at low temperature, with spray-supplying an aqueous solution of urea as the reducing component to the selective reduction catalyst.
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