| Thermodynamic Analysis of Desulfurization of Fine Coal by Electrochemical Reduction Flotation |
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| 引用本文： | 赵炜,朱红,张瑜. Thermodynamic Analysis of Desulfurization of Fine Coal by Electrochemical Reduction Flotation[J]. 中国矿业大学学报(英文版), 2003, 13(2) |
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| 作者姓名： | 赵炜 朱红 张瑜 |
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| 作者单位： | School of Chemical Engineering and Technology，CUMT，Xuzhou，Jiangsu 221008，China，School of Science，Northern Jiaotong Unlversity，Beijing 100044，China，School of Chemical Engineering and Technology，CUMT，Xuzhou，Jiangsu 221008，China |
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| 基金项目： | National Natural Science Foundation of China(50174054) |
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| 摘 要： | Problems in desulfurization of coal by electrochemical reduction is analyzed and calculated. The resultshows that 1) the △_rG_m function of the reaction of pyrite into FeS and the modifying reaction decreasing theoxygenous functions on coal surface is smaller than zero in a spontaneous reaction, and greater than zero in a non-spontaneous reaction; 2) the △_rG_m value can be adjusted by pH and the dosage of electrolyte to make it be greaterthan zero, which is favorable for the modifying reaction and useful for desulfurization of coal. The research hasprovided a theoretical foundation for determining reasonable technical parameters of desulfurization
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Thermodynamic Analysis of Desulfurization of Fine Coal by Electrochemical Reduction Flotation |
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| ZHAO Wei,ZHU Hong,ZHANG Yu. Thermodynamic Analysis of Desulfurization of Fine Coal by Electrochemical Reduction Flotation[J]. Journal of China University of Mining and Technology, 2003, 13(2) |
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| Authors: | ZHAO Wei ZHU Hong ZHANG Yu |
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| Abstract: | Problems in desulfurization of coal by electrochemical reduction is analyzed and calculated. The result shows that 1) the △rGm function of the reaction of pyrite into FeS and the modifying reaction decreasing the oxygenous functions on coal surface is smaller than zero in a spontaneous reaction, and greater than zero in a nonspontaneous reaction; 2) the △rGm value can be adjusted by pH and the dosage of electrolyte to make it be greater than zero , which is favorable for the modifying reaction and useful for desulfurization of coal. The research has provided a theoretical foundation for determining reasonable technical parameters of desulfurization |
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| Keywords: | coal electrochemical reduction thermodynamics desulfurization |
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