Patent ID: 8535627

Claim:
A process to reduce NOx emissions from a gas mixture comprising: supplying a gas mixture containing NOx and oxygen wherein said gas mixture has a level of oxygen of at or below 5.0 vol. %; introducing an aliphatic ketone/water mixture to said gas mixture wherein the aliphatic ketone has the following formula: wherein R1 is an alkyl group or isomer thereof comprising —CH 3 , —CH 2 CH 3 or —(CH 2 )nCH 3 where n has a value of 0-5 and wherein said ketone is present at 1-50% (vol) in said aliphatic ketone/water mixture; heating said gas mixture containing said aliphatic ketone/water mixture to a temperature of 600° C. to 1200° C.; removing 50% or more of said NOx from said gas mixture.