生物质与煤混合燃烧特性研究

Experimental study on combustion characteristics co- combustion of biomass and coal

通过综合热重实验、发热量实验、燃烧实验,对生物质与煤混合燃烧特性及SO2和CO排放特性进行了实验研究。研究结果表明,生物质与煤混合燃烧可以改善煤粉的着火温度、燃尽温度等燃烧特性;混合燃烧对发热量有较大影响,故生物质不能单独使用;混合燃烧烟气中的SO2和CO都相应减少,降低污染排放物,提高燃烧效率。

The experimental investigation was conducted of the combustion characteristics,SO2 and CO emission characteristics of biomass and coal with different blending ratios by comprehensive thermal analysis instrument,Bomb Calorimeter,a drop- tube furnace. The results indicate that biomass and coal co- combustion can improve the combustion characteristics of coal ignition temperature and burnout temperature etc. Co- combustion has a great influence on calorific value,so biomass cannot be used alone. SO2 and CO in co- combustion flue gas was reduced accordingly,reduce pollution emissions and improve combustion efficiency.