【摘要】 在采用循环流化床 (CFB)锅炉燃烧含硫量较低的难燃煤种时 ,往往不需要设置石灰石制备给料系统 ,SO2 就能达到国家排放要求。在此 ,煤的自脱硫性能对于降低SO2 的排放非常重要。分析了影响煤自脱硫性能的各种因素 ,通过试验煤种在 1MWth(CFB)燃烧试验台上的试烧 ,得出煤自脱硫效率随床温的变化关系 ,并对此进行了分析。试验结果对于深入了解煤的自脱硫性能有重要意义更多还原

【Abstract】 When difficult firing coal sorts with lower sulfer content are burnt in a circulating fluidized bed （CFB） boiler, the SO₂ emmision can often reach the required value of national standard, without the need to install a lime stone preparing and supplying system. Here, the selfdesulfuration behavior is very important for reducing the SO₂ emmision. Eeach influence factor upon the self desulferation behavior of coal sort has been analysed. Through trial combustion of coal sorts in a 1MW_th CFB combustion test stand, the variation of relationship between the selfdesulfuration efficiency of coal and the bed temperature has been obtained, and analysis being carried out. The result has very important significance for thorough understanding the selfdesulfuration behavior of coal sorts.更多还原