【摘要】 介绍了在0.5MW半工业试验台上,用空气燃烧技术,进行降低NO₂排放的试验结果。试验采用2种烟煤和以竹屑为主的植物燃料,主要讨论了燃炉内空气分级条件下的火焰烟气特性,出口烟气表现出氧化性和还原性并存的状态,氧化区产生的NO₂被氧化区处围的还原区还原成N₂。试验表明,分级燃烧技术能够很好地降低NO₂的排放。更多还原

【Abstract】 The experiment results on the reduction of NOx emission by staged air combustion have been introduced. The experiments are carried out on a 0. 5 MW testing unit. The fuel used in the experiments is a mixture of two kind of bituminous coals and plant fuels (mainly the pieces of bamboo). The flame and gas characteristics in the furnace have been discussed under staged air combustion conditions. The exhaust gas exhibits that both the oxidizing character and the reducing character are exist. The NOx produced in the oxidizing region have been reduce back to N2 in the reducing region. The experiments results show that the NOx emission could be significantly reduced by staged combustion.更多还原