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针对２台分别燃用贫煤和烟煤的３００ＭＷ锅炉（均采用ＷＲ型燃烧器）ＮＯｘ排放特性进行了研究。分析了这２种锅炉在满负荷和低负荷时ＮＯｘ排放量的差别，并指出了燃用贫煤锅炉比燃用烟煤锅炉ＮＯｘ排放量高的原因。
The NOx emission characteristics of two 300 MW boilers, each burning with lean coal and bituminous coal (all using WR type burners), were studied. The difference of NOx emissions between the two kinds of boilers at full load and low load is analyzed, and the reasons of high NOx emission are pointed out.