Patent ID: 8662883

Claim:
Apparatus for combusting exhaust gases comprising: a combustion chamber; a plurality of exhaust gas combustion nozzles each for conveying a respective exhaust gas into the combustion chamber, each nozzle having associated therewith a supply of fuel and a supply of oxidant; control means for receiving, for each exhaust gas, data indicative of a variation of the chemistry of the exhaust gas, and for adjusting at least one of the supply of fuel and the supply of oxidant of each nozzle; and a plenum chamber receiving the supply of fuel and the supply of oxidant of each of the plurality of nozzles and receiving a supply of a fuel and oxidant gas mixture at an inlet separate from the nozzles, the supply of fuel and the supply of oxidant of each nozzle mixing with the supply of the fuel and oxidant gas mixture within the plenum chamber, the plenum chamber further comprising at least one outlet from the plenum chamber to the combustion chamber for each of the plurality of nozzles; wherein the control means adjusts at least one of the supply of fuel and the supply of oxidant of a nozzle to produce an oxidizing combustion flame when the data is indicative of a first chemistry of the exhaust gas of the nozzle and to produce a reducing combustion flame when the data is indicative of a second chemistry of the exhaust gas of the nozzle.