Method for in-duct urea injection for selective catalytic reduction on small boilers and combustion sources

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United States of America Patent

PATENT NO 8815196
SERIAL NO

14046429

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Abstract

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A method for reducing NOx emissions from a lean burn combustor equipped with a NOx reducing exhaust catalyst, includes at least the following steps: (i) generating a computer based model of the geometry of an exhaust system of the combustor; (ii) computing at least one of flue gas velocity profiles and mass flow stream lines for exhaust gas flow through the exhaust system; (iii) inputting injector data comprising at least droplet size and velocity; (iv) modeling droplet trajectories for a plurality of injector locations; (v) modeling at least one flow conditioning device in the exhaust system; and (vi) manipulating the computer based model until an injector location is identified that provides a predicted root mean square (RMS) of reagent at the face of the catalyst that is less than 15%.

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Patent Owner(s)

Patent OwnerAddress
CECO ENVIRONMENTAL IP INC14651 DALLAS PARKWAY SUITE 500 DALLAS TX 75254

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Broderick, Jeffrey Michael Ridgefield, US 13 76
Eldredge, Thomas V Monroe, US 5 42
Jangiti, Saiprasad Woodbury, US 3 10
Valentine, James M Fairfield, US 54 1522

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