System and method for controlling and reducing NO x emissions

Details System and method for controlling and reducing NO x emissions System and method for controlling and reducing NO x emissions

2011-03-29

2011-03-29

Duong, Tom (Department: 1774)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C423S210000, C423S239100

Reexamination Certificate

active

07914747

ABSTRACT:
A system is provided for reducing NOxemission. The system includes a gas production source configured to produce a gas stream comprising NOx, and an oxidation catalyst positioned downstream of the gas production source. The oxidation catalyst is configured to oxidize NO gas molecules in the gas stream to yield higher order NxOymolecules. A removal system is positioned downstream of the oxidation catalyst and is configured to remove higher order NxOymolecules from the gas stream by solvent absorption or reaction. The system further includes a secondary NOxtrimming system positioned downstream of the oxidation catalyst, wherein the secondary NOxtrimming system is configured to inject a reactant into the gas stream, the reactant configured to react with NOxmolecules present in the gas stream.

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