煤与杨木粉在氧化性气氛下低温热解脱硫的实验研究

在空气气氛中采用固定床反应系统对合山原煤与杨木粉共热解脱硫效果进行了考察。主要考察了热解温度、热解时间对煤与杨木粉混合中挥发分和含硫量变化的影响。结果发现:随热解温度的升高,挥发分的损失量增加,而半焦的含硫量呈现先是升高而后下降的变化趋势;随热解时间的延长,挥发分的损失量增加,而半焦的含硫量是呈现先下降而后升高又下降的变化趋势。 The mixture of raw Heshan coal and poplar powder was pyrolyzed together in a fixed-bed reactor in air atmosphere to examine the sulfur removal efficiency and the volatilization content.The effect of temperature and time on the sulfur removal efficiency and the volatilization content of the mixture of raw Heshan coal and poplar powder were studied.The results show that the volatilization content increased and the sulfur content in char increased at the beginning,then decreased with pyrolytic temperature becoming higher;the volatilization content increased and the sulfur content in char decreased at the beginning,then increased and decreased with pyrolytic time becoming longer