黑龙江科技学院学报2016，Vol.26Issue(6)：635-639,5.DOI:10.3969/j.issn.2095-7262.2016.06.010
碱性条件下煤电化学的脱硫机理
Mechanism behind coal electrochemistry desulfurization under alkaline conditions
摘要
Abstract
This paper is devoted to studying the mechanism underlying the desulfurization of coal-derived pyrite and organic sulfur in coal.The experiment consists of performing electrochemical desulfurization treatment of high sulfur coal samples with the content of 3.08％ using the solution of NaOH with the concentration of 2.0 mol/L as electrolyte and employing the H type undivided electrolytic cell;providing scanning electron microscope energy spectrum analysis,XRF analysis,and infrared spectrum analysis of coal samples before and after desulfurization;and conducting ion chromatography analysis of the filtrate after coal sample electrolysis takes place.The results demonstrate that the inorganic sulfur of coal sample is distributed in the coal or embedded in coal particles mainly in the form of fine pyrite particles;the pyrite removal is achieved by generating sulfate due to oxidation reaction at the anode;and organic sulfur in coal samples is removed mainly by electrochemical reactions capable of converting it into the form of sulfate radicals.关键词
煤脱硫/电化学/碱性条件/黄铁矿/有机硫/硫酸根Key words
coal desulfurization/electrochemical/alkaline conditions/pyrite/organic sulfur/sulfate radicals分类
矿业与冶金引用本文复制引用
张鸿波,孙瑞,胡秉双,李悦..碱性条件下煤电化学的脱硫机理[J].黑龙江科技学院学报,2016,26(6):635-639,5.基金项目
黑龙江省教育厅科学技术研究项目(12541z010) （12541z010）
哈尔滨市科技创新人才研究专项资金项目(RFQXJ085)该论文得到了黑龙江科技大学青年才俊项目(Q20100205)的支持. （RFQXJ085）
