Back to results
US 6,887,068 B2Granted
Centering plate for burner
AssigneeExxonMobil Chemical Patents Inc.
InventorDavid B. Spicer
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeExxonMobil Chemical Patents Inc.
InventorDavid B. Spicer
Estimating the term…
A burner for use in furnaces such as in steam cracking. The burner includes a burner tube having a downstream end and an upstream end. A burner tip is mounted on the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip. A fuel orifice located adjacent the upstream end of the burner tube is included for introducing fuel into the burner tube. The burner may also include at least one passageway for supplying flue gas from the furnace into a primary air chamber. The burner also has a structure responsive to an inspirating effect created by uncombusted fuel exiting the fuel orifice for drawing flue gas from the furnace through the passageway and the primary air chamber. The burner also includes a plate for centering the fuel orifice with the burner tube, the centering plate being perforated to permit flow therethrough.
A burner for the combustion of fuel, said burner being located adjacent a first opening in a furnace, said burner comprising:
A method for reducing NOx emissions in a burner for the combustion of fuel, the burner being located adjacent a first opening in a furnace and including a primary air chamber having a roof, a burner tube including a downstream end and an upstream end for receiving air from the primary air chamber and fuel, a burner tip adjacent the first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip and a fuel orifice located adjacent the upstream end of said burner tube, for introducing fuel into said burner tube, the fuel orifice being mounted on a riser;
A method for reducing NOx emissions in a burner for the combustion of fuel, the burner being located adjacent a first opening in a furnace and including a primary air chamber having a roof, a burner tube including a downstream end and an upstream end for receiving air from said primary air chamber and fuel, a burner tip adjacent the first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip and a fuel orifice located adjacent the upstream end of said burner tube, for introducing fuel into said burner tube, the fuel orifice being mounted on a riser;
Dependencies are inferred from the claim text.