| 摘要 |
<p>A method for operating a furnace (32) comprising generating NOx with burners (13,20) at a value exceeding the equilibrium value by combustion at a distance from the flue (34) and generating NOx with burners (1,12) at a lesser value, preferably at a value below the equilibrium value, by combustion close to the flue (34). <IMAGE></p> |
