不同种类粉煤灰的XPS分析  

XPS Analysis of Different Kinds of Fly Ash

作　　者：张蕾[1] 陈吉浩 张磊[2] 马振华[1] ZHANG Lei;CHEN Ji-hao;MA Zhen-hua(School of Geology and Environment,Xi＇an University of Science and Technology,Xi＇an 710054,China;China National Heavy Machinery Research Institute Co.,Ltd.,Xi＇an 710032,China)

机构地区：[1]西安科技大学地质与环境学院,西安710054 [2]中国重型机械研究院股份公司,西安710032

出　　处：《煤炭技术》2018年第11期344-347,共4页Coal Technology

基　　金：国家自然科学基金资助项目(51704230);国土资源部煤炭资源勘察与综合利用重点实验室开放课题资助项目(KF2015-1);陕西自然科学基础研究计划-一般项目(青年)(2017JQ5115);陕西省科技统筹创新工程计划项目(2012KTZB03-01-02);榆林市2017年科技计划项目(2016-17-5)

摘　　要：选取3种粉煤灰制备成3种不同的样品,进行脱硝实验。采用X射线光电子能谱(XPS)仪检测分析这3个样品中主要元素及其化合态的结合能。结果表明:通过脱硝实验得出样品3的脱硝效果最好;通过XPS测得3种样品的主要元素均为Si、Ca、O、C、Al,但是3种样品中化合态物质不同,这是脱硝效果不同的主要原因;研究发现Ca元素的化合物种类和含量对脱硝起到主要的作用。Three different samples were prepared from three kinds of fly ash and the denitration experiment was carried out. X-ray photoelectron spectroscopy （XPS） was used to detect and analyze the binding energy of the main elements and their chemical states in the three samples. The result is as follows： by the denitration experiment,it is found that the denitration effect of sample 3 is the best; the main elements of the three samples measured by XPS are Si, Ca, O, C and A1. However, three kinds of samples have different chemical compounds,which is the main reason for the different denitration effects; the study found that the type and amount of compounds containing Ca played a major role in denitration.

关 键 词：粉煤灰 XPS 结合能 脱硝 

分 类 号：TQ536.4[化学工程—煤化学工程]