加福无烟煤粉燃烧动力学参数测定  

KINETICS OF COMBUSTION OF PULVERIZED JIAFU ANTHRACITE IN THE TEMPERATURE RANGE 1173-1623K

作　　者：路霁鸰[1] 徐旭常[1] 

机构地区：[1]清华大学热能工程系

出　　处：《工程热物理学报》1993年第3期327-331,共5页Journal of Engineering Thermophysics

摘　　要：用管式沉降炉做了加福煤粉(180—240目)的燃烧实验.加福煤是高灰分的高变质无烟煤,用有灰壳的缩核模型计算了它的燃烧反应动力学参数.结果证叫加福煤粉的燃烧实际接近于无灰壳的收缩模型,说明既使对于高灰分的煤粉,有灰壳的燃烧模型也是不适用的.本文还对在不同取样点间有不同表面反应速度系数的原因进行了分析,并对煤粉燃烧实验方法提出建议.The combustion experiments of pulverized Jiafu anthracite were carried out in a drop-tube furnace. A methematical model, i. e. a shrinking core model, is.used to determine the kinetic parameters of this coal. The result shows the evidence that the model is not suitable for pulverized coal which has high ash content. Besides, the reason of different reactivity of coal in differet interval of burnout time is analysed. Then a methed to determine the combustion kinetics of pulverized coal is suggested.

关 键 词：无烟煤 煤粉 燃烧 动力学 

分 类 号：TQ534[化学工程—煤化学工程]