| 微波-化学方法除去原煤无机硫的穆斯堡尔谱研究 |
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| 引用本文： | 翁斯灏,王杰.微波-化学方法除去原煤无机硫的穆斯堡尔谱研究[J].环境科学学报,1993,13(2):233-239. |
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| 作者姓名： | 翁斯灏 王杰 |
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| 作者单位： | 华东师范大学物理系 上海200062
(翁斯灏)，华东化工学院能源化工系 上海(王杰) |
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| 摘 要： | 采用~(17)Fe穆斯堡尔谱学方法研究原煤中无机硫的形态和微波-化学方法脱硫的机理和规律.结果表明,煤中无机硫主要以黄铁矿形式存在.低铁硫酸盐则是原煤风化程度的一种表征;微波选择性介质加热,导致煤中黄铁矿与煤组分进行原位热化学反应,产生能溶于稀盐酸的铁硫化合物Fe_(1-x)S_x(0
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| 关 键 词： | 原煤 辐照 酸洗 脱硫 穆斯堡尔谱 |
| 收稿时间： | 7/8/1991 12:00:00 AM |
M(?)SSBAUER SPECTRUM STUDY OF COAL DESULFU RIZATION WITH MICROWAVE-CHEMICAL TREATMENT |
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| Weng Sihao and Wang Jie.M(?)SSBAUER SPECTRUM STUDY OF COAL DESULFU RIZATION WITH MICROWAVE-CHEMICAL TREATMENT[J].Acta Scientiae Circumstantiae,1993,13(2):233-239. |
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| Authors: | Weng Sihao and Wang Jie |
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| Institution: | Department of Physics, East China Normal University, Shanghai 200062 and Department of Chemical Engineering for Energy Resources, East China University of Chemical Technology |
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| Abstract: | Mossbauer effect was used to study the transformation of Fe-S compounds in coal before and after microwave irradiation and chemical treatment. The result for phase analysis shows that pyrite is the dominant form of inorganic-sulfur in the coal investigated, and ferrous sulfate FeSO4 is an indication of weathering. The selective dielectric heating of microwave energy can give rise to thermo-chemical in-situ reactions between pyritic sulfur and the neighboring reactive compounds present in coal,and can convert pyrite which is insoluble in HC1 to pyrrhotite and/or troilite which are soluble in HC1. An increase of the irradiation time followed by a 5% HC1 treatment can remove the majorty of inorganic-sulfur in coal. |
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| Keywords: | microwave irradiation acid treatment desulfurization coal |
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