低NO_x燃烧技术及其在我国燃煤电站锅炉中的应用

Analysis of Low NO_x Combustion Techniques and Its Application for the Coal Fired Power Plants in China

针对我国以煤为主的电力状况,对我国电站锅炉目前采用的低氧燃烧、空气分级和燃料分级燃烧的各影响因素进行了分析和总结,根据采用某些低NOx燃烧技术后尚不能使燃用低挥发份无烟煤、贫煤和劣质烟煤的电站锅炉NOx排放达到国家标准要求的事实,指出了进一步进行降低燃用以上煤种NOx排放水平的空气分级和燃料分级燃烧技术研究的必要。

According to the Chinese national fuel policy which is the coal will have been mainly used to generate the electric power in the next twenty or thirty years with about 60% ratio, and the really NO_x emissions situation of coal fired power plants, the factors on the effects of low NO_x combustion techniques, such as low oxygen concentration, air staging and fuel staging, are analyzed and summarized. Based on the NO_x emissions level of low volatile coal which still could reach the metting of the national standards of NO_x emission, even by using these low NO_x combusdtion techniques, the deeply study on the effect of using air staging and fuel sdtaging to reduce the NO_x emissions of the volatile coal fired power plants in China is necessary. Figs2 and refs 12.