生物质垃圾与煤混烧飞灰颗粒的微观形态特征及能谱研究

利用扫描电镜(SEM)和能谱(EDX)结合联用技术直观地观察了生物质垃圾与煤混合压制燃料的飞灰微观形态特征,分析了其主要组成元素及其质量分数.实验结果表明,飞灰颗粒的形态多样,以不规则形态居多.不同粒径颗粒之间存在逐级吸附的现象.在本实验观察的所有飞灰颗粒的能谱分析中都发现了K元素的存在.实验发现,生物质与煤混烧排放钾的主要存在形式是氯化钾.

MICROSIRCCTORE CHARACTERISTIC AND X-RAY ENERGY DLSPERSIVE MICROANALYSIS OF CO-COMBUSTION FLY ASH OF BIOMASS WITH COAL

The microstructure characteristic and elements analysis of the fly ash from co-combustion of biomass with coal was conducted by using scanning electron microscopy (SEM) and energy disperse X-ray microanalysis (EDX) . The re-sults show that the shapes of fly ash particles are multiple, most particles are irregular and the phenomenon of particle ad-sorption existed among different grain sizes. Potassium was detected in all fly ash particle. This means that the primarily existent form of potassium is potassium chloride in co-combustion of biomass with coal.