This paper presents the experimental research process and results about flue gas purifying of municipal solid wastes (MSW) incineration using in-pipe jet adsorption techniques.MSW incineration was carried out in a fluidized bed test rig, and the flue gas purifying was carried out in an in-pipe jet adsorption test rig.The experimental results are as follows：when the feedstock of activated carbon is 1.6 g/Nm~3, the desulfurization efficiency is 83%, the denitrification efficiency is 41%, and the dechlorination eflficiency is 27%.The order of purifying eflect of the three kinds of adsorbents on acidic gases from MSW incineration is activated carbon＞activated bauxite＞kao-lin.Comparison of adsorption capabilities of the three kinds of adsorbents to heavy metals shows that activated carbon is the best addi-tive to remove Cd, Pb and Cu, kaolin is inferior, and activated bauxite is the worst one.However, activated bauxite is the best additive to remove Hg, and it can remove Cd effectively.PAHs in fly ash are dominated by three-, four-, and five-ringed PAHs, and PAHs in the flue gas mainly include three- and four-ringed PAHs.When the injected quantity of additive is constant, the order of cleaning effect on PAHs is kaolin＞activated carbon＞activated bauxite.These three kinds of adsorbents have difterent purifying eflects on acidic gases, heavy metals and PAHs in the flue gas from MSW incineration.In general, activated carbon has a better adsorption capability.
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机译：本文介绍了使用管内射流吸附技术净化城市生活垃圾（MSW）的烟气的实验研究过程和结果。在流化床试验台上进行了MSW的焚烧，并在实验室进行了烟气的净化。实验结果如下：活性炭原料为1.6 g / Nm〜3时，脱硫效率为83％，脱氮效率为41％，脱氯效率为27。活性炭＞活性铝土矿＞高岭土对三种吸附剂对酸性垃圾焚烧酸性气体的净化效果排序。三种吸附剂对重金属的吸附能力比较表明，活性炭是最佳的。除能去除Cd，Pb和Cu之外，高岭土次之，而活性铝土矿是最差的一种，但是活性铝土矿是去除Hg的最佳添加剂，它可以有效地去除Cd。粉煤灰中的三环，四环和五环多环芳烃占主导地位，烟气中的多环芳烃主要包括三环和四环多环芳烃，当添加剂的注入量恒定时，对多环芳烃的清洁效果顺序这三种吸附剂对城市固体垃圾焚烧烟气中的酸性气体，重金属和多环芳烃具有不同的净化效果，一般而言，活性炭具有更好的吸附能力。
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