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  

MICROSTRUCTURE CHARACTERISTIC AND X-RAY ENERGY DISPERSIVE MICROANALYSIS OF CO-COMBUSTION FLY ASH OF BIOMASS WITH COAL

作　　者：任福民[1] 高明[1] 张玉磊[1] 于敏[1] 许兆义[1] 汝宜红[1] 

机构地区：[1]北京交通大学土木建筑工程学院,北京100044

出　　处：《太阳能学报》2009年第11期1550-1553,共4页Acta Energiae Solaris Sinica

基　　金：铁道部科技发展计划重点项目(2006Z008)

摘　　要：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。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 results 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.

关 键 词：生物质 飞灰 扫描电子显微镜 能谱分析 重金属 

分 类 号：X513[环境科学与工程—环境工程] O657.62[理学—分析化学]