秸秆灰对煤焦气化反应性的影响研究

STUDY ON CATALYTIC EFFECT OF STRAW ASH ON CHAR GASIFICATION

通过热红外技术研究了秸秆灰对煤焦气化反应性的影响.结果表明,在实验条件下,添加秸秆灰煤焦达到最大气化反应速率所需时间缩短了近10min,完成气化反应所需时间缩短了近17min;同时秸秆灰对煤焦气化反应性的影响与秸秆灰添加量密切相关,添加量为30%时效果最佳.红外光谱分析结果表明,秸秆灰的加入,对煤焦表面的官能团结构产生重要影响.秸秆灰对煤焦气化反应性的影响是通过改善煤焦的表面物理化学性质实现的.

Effect of straw ash on the gasification reaction of char by thermal infrared technology was studied. The results show that under the condition of experiment, the time of coal tar maximum gasification reaction rate shorten about 10 min with straw ash added, the time need to complete the gasification reaction shorten nearly 17 min; and the effect of straw ash on char gasification reactivity is closely related to the straw ash content, when adding amount is 30% the effect is best. Infrared spectrum analysis results show that the addition of straw ash have important influence on functional group structure on the surface of coal tar. Effect of straw ash on char gasification reactivity is realized by improving the surface physical and chemical properties of the coal tar.