| 溴化钠水溶液体系中煤的电化学脱硫 |
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| 引用本文： | 赵炜,朱红,朱英. 溴化钠水溶液体系中煤的电化学脱硫[J]. 燃料化学学报, 2003, 31(4): 376-380 |
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| 作者姓名： | 赵炜 朱红 朱英 |
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| 作者单位： | 1. School of Chemical Engineering and Technology, CUMT, Xuzhou 221008, China; 2. School of Science, Northern Jiaotong University, Beijing 100044, China |
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| 基金项目： | 国家自然科学基金(50174054)~~ |
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| 摘 要： | 煤炭脱硫技术包括:物理洗选、化学脱硫、生物脱硫、超声波脱硫和微波脱硫等[1～3]。物理洗选法脱硫最经济,但只能脱无机硫。生物、化学法脱硫不仅能脱无机硫,也能脱有机硫,但生产成本昂贵,距工业应用尚有一定距离。20世纪80年代出现的电化学脱硫技术是一种既能克服物理、化学等法的缺点,又能达到较好脱硫效果的洁净、温和的脱硫方法[4,5]。本文对电化学氧化脱硫进行了研究,探讨了电化学氧化法脱除煤中硫的适宜体系和条件。1 实验部分1 1 原料和试剂 实验采用山西平朔煤(Pingsucoal)为原料,煤样粒径小于0 125mm。对煤样进行硫分析,其…
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| 关 键 词： | 煤 电化学脱硫 脱硫率 电解体系 电解条件 |
| 文章编号： | 0253-2409(2003)04-0376-05 |
| 收稿时间： | 2002-09-19 |
| 修稿时间： | 2002-09-19 |
SULFUR REMOVAL FROM COAL BY ELECTROLYSIS IN SODIUM BROMIDE SOLUTION SYSTEM |
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| ZHAO Wei ,ZHU Hong ,ZHU Ying. SULFUR REMOVAL FROM COAL BY ELECTROLYSIS IN SODIUM BROMIDE SOLUTION SYSTEM[J]. Journal of Fuel Chemistry and Technology, 2003, 31(4): 376-380 |
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| Authors: | ZHAO Wei ZHU Hong ZHU Ying |
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| Affiliation: | ZHAO Wei 1,ZHU Hong 2,ZHU Ying 1 |
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| Abstract: | A suitable system and the best condition were determined for sulfur removal from coal by electrolysis through testing, and the effect of electrolytic conditions on desulfurization rate was studied. At the same time, the influence of electrolysis desulfurization on the structure of coal was inquired into. The results showed that the effect of desulfurization was the best in sodium bromide electrolytic system, the best desulfurization condition was ［NaBr］=1.5 mol/L, I=0.7A, T=343 K, t=4 h and the highest desulfurization rate reached 89%. We found that with increasing electrolytic conditions, desulfurization rate increased at first, and then kept constant. The analysis of IR spectrum showed that the structure of coal wasn't destroyed. |
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| Keywords: | coal electrolysis desulfurization desulfurization rate electrolytic system electrolytic condition |
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