METHOD OF MANUFACTURING CATALYZED PARTICULATE FILTER
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United States of America Patent
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Nov 25, 2016
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Jul 25, 2016
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Abstract
A method of manufacturing a catalyzed particulate filter may include: preparing a bare particulate filter; injecting a first catalyst slurry into at least one inlet channel or at least one outlet channel; discharging a portion of the first catalyst slurry by blowing gas into the at least one outlet channel or the at least one inlet channel or drawing the gas from the at least one inlet channel or the at least one outlet channel; injecting a second catalyst slurry into the at least one outlet channel or the at least one inlet channel; discharging a portion of the second catalyst slurry by blowing gas into the at least one inlet channel or the at least one outlet channel or drawing the gas from the at least one outlet channel or the at least one inlet channel; and drying/calcining the particulate filter from which the portion of the first catalyst slurry and the portion of the second catalyst slurry are discharged.
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