摘要
煤经过部分气化后的半焦中含有CaS。当半焦在循环流化床燃烧室(CFBC)中燃烧时,其中的CaS发生氧化-还原反应而释放出SO2。 该文在单颗粒CaS的氧化-还原反应的原理计算模型的基础上,建立了半焦燃料中的CaS在CFBC中发生反应的总体模型,以预测SO2的排放浓度。用一维CFBC计算机软件计算的结果,能根据CFBC的实际工作条件加以合理地解释,模型计算结果与实验结果吻合很好。
There exists calcium sulphide in char derived from partial coal gasification. Sulphur dioxide would emit due to the oxidation-reduction reactions while the char is combusted in circulating fluidized bed combustor (CFBC). Based on the individual first-principle models of oxidation and reduction reactions of single calcium sulphide particle, a comprehensive model for the reactions of calcium sulphide in the coal char occurred in CFBC has been developed to predict emission concentration of sulphur dioxide. The calculational results obtained by a one-dimension CFBC computer program can be reasonably explained according to the practical conditions of CFBC. The result of the model prediction is good in agreement with experimental data.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2003年第7期196-200,共5页
Proceedings of the CSEE
