期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：189
期号：3
页码：032002
DOI：10.1088/1755-1315/189/3/032002
语种：English
出版社：IOP Publishing
摘要：To study the desulfurization mechanism of coal-derived pyrite and organic sulfur in coal, the experiment used the solution of NaOH whose concentration is 2.0mol/L as electrolyte to dispose high sulfur coal samples whose content is 3.08% with the H type undivided electrolytic cell, and analyzed the before and after desulfurization of coal samples by scanning electron microscope, XRF and IR spectrum and the filtrate is from after electrolyzing coal sample by ion chromatograph. The results showed that the inorganic sulfur of coal sample mainly in the form of Pyrite that is a fine granular distribution in the coal and disseminates on the coal particle, then pyrite is removed by generating sulfate at the anode oxidation reaction, and finally, organic sulfur in coal samples mainly is removed by electrochemical reaction that can convert into the form of sulfate radicals.
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