垃圾与煤混烧PAHs排放特性研究

PAHs EMISSION FROM Co-COMBUSTION OF MSW AND COAL

研究了杭州某 15 0T/d商业运行流化床垃圾焚烧炉中多环芳烃的排放特性。研究结果表明 ,未添加脱除剂时垃圾与煤混烧产生的多环芳烃总量高于全煤燃烧 ,分别是 3 310 8mg/Nm3 和 0 32 35mg/Nm3 ,排放因子分别为4 4 5 5 4 μg/kg和 13 6 32 9μg/kg。产生的PAHs富集状态固相多于气相。同时还初步研究了脱除剂对垃圾焚烧产生多环芳烃的影响 ,Ca/S摩尔比 1时多于正常运行工况下多环芳烃的排放量 ,而Ca/S摩尔比 2时则少于正常运行工况。

PAHs emission from an operating fluidized bed incinerator of Hangzhou had been studied It is suggested from the results that total PAHs emission level from co combustion of coal and MSW is higher than that of coal combustion without desulfuration They are 3 310?8?mg/Nm 3 and 0 323?5?mg/Nm 3 and emission factors are 4 455?4?μg/kg fuel and 13 632?9?μg/kg fuel respectively PAHs existed in solid phase is higher than that in gas phase The influence of desulfuration on the PAHs formation from combustion of MSW is also studied briefly