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穆斯堡尔谱在煤粉微波脱硫试验分析中的应用
APPLICATION OF MOSSBAUER SPECTROCOPY IN THE EXPERIMENT OF COAL DESULFURIZATION BY MICROWAVE RADIATION
【摘要】 采用穆斯堡尔谱学方法分析煤粉的微波脱硫效果。结果表明微波辐照后煤粉样对应的同质异能移IS和谱面积A都较未辐照的减小 ,并出现磁超精细场 ,说明微波辐照后煤粉中的黄铁矿开始向磁黄铁矿转化。通过计算 ,在给定的微波辐照条件下 ,黄铁矿转化为磁黄铁矿的转化率为 2 4 7%
【Abstract】 This paper presents the analysis to the experiment of coal desulfurization by microwave radiation with Mossbauer Spectroscopy.By contrast with the radiated sample and the original sample,data indicates that the isomeric shift (IS) and the spectra area (A) decrease and the magnetic hyperfine splitting occurs,which shows the transformation of pyrite to pyrrhotite.On the given microwave radiation condition,we can get the value of the transforming ratio by calculating,i.e. η conv =24.7%.
【关键词】 煤粉;
脱硫;
穆斯堡尔谱;
微波;
铁-硫化合物;
【Key words】 pulverized coal; desulfurization; Mossbauer spectroscopy; microwave and iron sulfur compounds;
【Key words】 pulverized coal; desulfurization; Mossbauer spectroscopy; microwave and iron sulfur compounds;
- 【文献出处】 环境工程 ,Environmental Engineering , 编辑部邮箱 ,2002年02期
- 【分类号】X701.3
- 【被引频次】14
- 【下载频次】175