CATALYTIC REDUCTION OF NOx
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United States of America Patent
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app pub date -
Sep 17, 2014
filing date -
Feb 6, 1998
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Abandoned
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Abstract
A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst and methods for operating such a system are disclosed. Considerable improvements in NOx conversion and soot reduction are observed even at relatively low operating temperatures.
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