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Desulfurization of coal using the electrochemical technique in neutral and alkaline media

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Desulfurization methods have been extensively investigated to produce clean fuel from coal. However, most methods remove either inorganic or organic sulfur. To further remove the total sulfur, this study applied the electrolysis process of coal in aqueous sodium chloride and sodium hydroxide (NaOH) solutions. The changes of sulfur forms were confirmed by quantitative analysis with a decrease of 38.74%. Furthermore, the electrolysis process had no effects on the main structure of coal with an increase of 8.12% of the calorific value.
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Keywords: Electrolysis; electrolytes; inorganic sulfur; organic sulfur; sulfurs

Document Type: Research Article

Affiliations: 1: Faculty of Mathematics and Natural Sciences, German-Mongolian Institute for Resources and Technology, Ulaanbaatar, Mongolia 2: School of Engineering and Applied Sciences, National University of Mongolia, Ulaanbaatar, Mongolia

Publication date: August 3, 2017

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