【摘要】 为了研究生活垃圾挥发分和热解碳分离燃烧污染物排放特性，探索通过改变燃烧方式来降低生活垃圾燃烧污染物排放，利用固定床装置对生活垃圾直接燃烧和热解后的挥发分、热解炭单独燃烧进行了试验对比。结果表明：与直接燃烧相比，气炭分离燃烧生成CO、HCl、SO₂、NO₂、NH₃、HCN、HNCO等污染物的总量明显减少，NO和N₂O生成量略有增加；不同的燃烧方式产生的NO_x组分有较大的区别，直接燃烧产生的NO_x主要是NO和NO₂,气炭分离后燃烧产生的NO_x主要是NO;不同燃烧方式下，过量空气系数α对污染物的生成量均有影响，随着α的增加，直接燃烧时产生的CO、N₂O、SO₂、NH₃有所减少，NO、NO₂、HCN、HNCO有所增加，挥发分燃烧产生NO明显增加，HCN和HNCO略有减少，HCl、N₂O、NO₂、NH₃生成量很小变化不明显；热解炭燃烧时各污染物生成量均较低。更多还原

【Abstract】 In order to study the emission characteristics of pollutants from the separation and combustion of volatile matter and pyrolysis carbon in household waste, and to explore the reduction of pollutant emissions from household waste combustion by changing the combustion method, this paper used a fixed bed device to experimentally compare the volatile matter and pyrolysis carbon from direct combustion and pyrolysis of household waste separately. The results show that compared with direct combustion, the total amount of CO, HCl, SO₂, NO₂, NH₃, HCN, HNCO generated by separated combustion is significantly reduced, and the generation of NO and N₂O is slightly increased. Under different combustion methods, there is a big difference in the composition of the NO_x. The main component of NO_x produced by direct combustion is NO and NO₂, while the separated combustion is NO. Under different combustion methods, the excess air coefficient α affects the amount of pollutants. With the increase of α, the CO, N₂O, SO₂, and NH₃ produced by direct combustion are reduced, NO, NO₂, HCN, and HNCO are increased, and the production of NO by volatile combustion increases significantly, while HCN and HNCO are slightly reduced, the generation of HCl, N₂O, NO₂, NH₃ is very small, and the change is not obvious. The generation of pollutants by the combustion of pyrolytic-char is relatively low.更多还原