煤炭工程 ›› 2014, Vol. 46 ›› Issue (12): 111-113.doi: 10.11799/ce201412036
• 研究探讨 • 上一篇 下一篇
许宁
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摘要：
本文采用X射线光电子能谱（XPS）方法分析微波脱硫前后煤中硫的赋存形态及其变化规律。结果显示：煤中硫主要以噻吩类、亚砜（S=O）类、硫醇（醚）以及硫酸盐类矿物质的形式存在。经过微波脱硫后煤中含硫基团中噻吩类硫和硫醇（醚）硫含量降低，硫醇（醚）硫几乎完全脱除；而亚砜类和硫酸盐类含量增加，煤中硫元素有向氧化态转化的趋势。
关键词: 煤炭, 微波脱硫, XPS, 硫形态
Abstract:
In this paper, the changes of sulfur chemical forms in coal before and after desulfurization were analysed by XPS. The results show that, the sulphur exists in coal in the forms of thiophene、sulfoxide（S=O）、mercaptan（sulfoether）and sulfate. After desulfurization by microwave, the contents of thiophene sulfur and mercaptan（sulfoether）sulfur decreased, and basically the mercaptan was removed completely. Meanwhile, the content of sulfoxide sulfur increased slightly, and the content of sulfate sulfur increased by a large margin. The sulphur in coal tends to transform into its oxidation state.
中图分类号:
TQ536
许宁，陶秀祥，等. 基于XPS分析微波脱硫前后煤中硫形态变化研究[J]. 煤炭工程, 2014, 46(12): 111-113.
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http://www.coale.com.cn/CN/Y2014/V46/I12/111
