Soot oxidation catalyst and method of making
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United States of America Patent
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Nov 8, 2011
Grant Date -
Sep 9, 2010
app pub date -
May 20, 2010
filing date -
Mar 20, 2006
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Abstract
. The catalyst composition may be provided on a diesel particulate filter by impregnating the filter with an alumina, silica or zirconia sol solution modified with glycerol and/or saccharose, impregnating the filter with a stabilizing solution, and impregnating the filter with a solution containing the active metal oxide precursor(s) and the catalytic metal precursor(s). The resulting catalyst coated diesel particulate filter provides effective soot oxidation, exhibits good thermal stability, has a high BET surface area, and exhibits minimal backpressure.
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