摘要
综述了最近20年国内煤中有机硫脱除的技术和效果,并对国外的相关研究进行了简要介绍。在借鉴国外研究的基础上,国内多位学者对有机溶剂萃取脱除煤中有机硫做了大量研究,得出了很多具有重要意义的结论,主要有:全氯乙烯在超声强化条件下可以脱除大量有机硫,同时使硫铁矿硫得到富集,而且全氯乙烯可以实现完全循环;碘甲烷或正丙醇也可用于溶剂萃取脱硫;通过气相色谱-质谱联用仪对萃取物进行分析发现,萃取物中有60多种有机硫化物,其中40多种为噻吩类有机硫。亦指出了目前研究工作中存在的问题。
The technologies and results of coal desulfurization in China in recent two decades were summarized and the previous researches in foreign countries were briefly introduced.On the basis of abroad researches,Chinese researchers have made significant efforts to study the removal techniques of organic sulfur from coal through organic solvent extraction,and obtained many significant conclusions and the mains are the perchloroethylene,especially under ultrasonic irradiation,can be used to remove a large amount of organic sulfur;at the same time,the pyrite can be enriched in extraction,and the perchloroethylene can be reused totally;methyl iodide or normal propyl alcohol can be used to remove sulfur from coal through extraction,too.The analysis of extracts was made by gas chromatograph/mass spectrometer and more than 60 sulfur-bearing compounds were discovered,among them,more than 40 compounds contained thiophene structure.The authors pointed out some problems existed in current researches.
出处
《山东科技大学学报（自然科学版）》
CAS
2011年第3期54-65,共12页
Journal of Shandong University of Science and Technology(Natural Science)
基金
河北省重大专项项目(09213914Z)
关键词
煤
有机硫
噻吩
全氯乙烯
萃取物
气相色谱-质谱联用仪
coal
organic sulfur
thiophene
perchloroethylene
extraction
gas chromatography combined with mass spectrometry（GC-MS）
