燃料化学学报Issue(10)：1153-1159,7.
神木煤流化床气化带出细粉的特性
Characteristics of fine chars from fluidized bed gasification of Shenmu coal
摘要
Abstract
The ash fusion characteristics, particle-size distribution and gasification reactivity of Shenmu coal (SM) fine chars from ash agglomerate fluidized bed gasification were explored by ash fusion point analyzer,scanning electron microscopy equipped with energy dispersive X-ray analysis ( SEM-EDX), and thermo-gravimetric analyzer. The results show that the decrease in basic ingredients (e. g. iron and calcium) and theincrease in acidic ingredients make the ash fusion temperature (AFT) of SM fine chars lower than that of SM. There is a wide particle-size distribution in SM fine chars, which shows a significant multi-peak distribution, anda large difference of the elemental distribution in fine char particles with different sizes. The moisture content is lower and ash content is higher in fine power than that in SM, respectively. SM fine char has higher surface areathan that of SM char , and relatively rich in meso-pores and macro-pores, which results in its higher gasification reactivity than SM char.关键词
神木煤焦/流化床气化/细粉焦/熔融特性/气化反应活性Key words
Shenmu char/fluidized bed gasification/fine chars/fusion characteristics/gasification reactivity分类
化学化工引用本文复制引用
李风海,李振珠,黄戒介,房倚天..神木煤流化床气化带出细粉的特性[J].燃料化学学报,2014,(10):1153-1159,7.基金项目
中国科学院战略性先导项目专项(XDA07050103) （XDA07050103）
煤转化国家重点实验室开放基金(J12-13-102)。 （J12-13-102）
