Patent ID: 6398546
Filing Date: 2002-06-04
Classification: C03B,F23C,F23M,F27B,F27D,Y02P

Abstract:
A method for carrying out combustion in a furnace having porous walls comprising:a) providing a combustion zone containing an atmosphere of furnace gases; b) injecting a low velocity oxidant stream through at least one oxidant injection side of the porous walls into the combustion zone at a specific flow rate less than 600 SCFH/ft2; c) injecting a fuel stream through at least one fuel injection side directed toward the oxidant injection side in the combustion zone at a distance from the oxidant stream so that the oxidant stream mixes with recirculating flow of furnace gases prior to combustion; and d) mixing the low velocity oxidant and fuel stream in said combustion zone to create a flame with reduced flame temperature.