酸洗脱灰对JH煤物化性能的影响研究

燃料与化工 ›› 2020, Vol. 51 ›› Issue (5): 7-10.

酸洗脱灰对JH煤物化性能的影响研究

吴成林吴雷胥玉玲马岩边春杨

中钢集团鞍山热能研究院有限公司，鞍山114044

出版日期:2020-09-23 发布日期:2020-10-14

Research of the influence of acid-cleaning and deashing on physicochemical properties of JH coal

Wu Chenglin Wu Lei Xu Yuling Ma Yan Bian Chunyang

Sinosteel Anshan Research Institute of Thermal-Energy Co.,Ltd.,Anshan 114044,China

Online:2020-09-23 Published:2020-10-14

摘要/Abstract

摘要：

以JH煤为原料，采用浓盐酸-氢氟酸两步法制备脱灰煤，并通过单因素法考察反应条件对脱灰煤性质的影响。通过工业分析、元素分析、红外光谱和基氏流动度等方法，对比分析了JH煤在酸洗脱灰前后物化性能的变化。结果表明，酸洗处理能将煤中灰分质量分数降至0.51%；酸洗处理对煤中脂肪烃化合物影响较小，对芳香烃化合物和含氧官能团影响较大；在N2保护环境下，酸洗处理对煤的黏结性影响不大，但会影响流动性能。

关键词: 脱灰煤, 酸洗脱灰, 红外光谱, G值, 基氏流动度

Abstract:

With JH coal as raw material，deashed coal was produced by using the method of two steps of hydrochloric acid-hydrofluoric acid.The effect of reaction conditions on the properties of deashing coal was investigated by single factor method.Through industrial analysis，element analysis，infrared spectrum analysis and gieseler fluidity，the changes of physicochemical properties of JH coal before and after acid cleaning and deashing are analyzed.The results show that the demineralization can reduce the ash content in coal down to 0.51%; the deashing has little effect on the aliphatic hydrocarbon compounds in coal，but has great influence on the aromatic hydrocarbon compounds and the oxygen-containing functional groups; It is also found that under N2 shielded，the deashing has an influence on the fluidity rather than the caking property of coal.

Key words: Deashed coal, Acid-washing and deashing, Infrared spectrum, , Caking index (G value), Gieseler fluidity

中图分类号:

TQ533.2

吴成林吴雷胥玉玲马岩边春杨. 酸洗脱灰对JH煤物化性能的影响研究[J]. 燃料与化工, 2020, 51(5): 7-10.

Wu Chenglin Wu Lei Xu Yuling Ma Yan Bian Chunyang. Research of the influence of acid-cleaning and deashing on physicochemical properties of JH coal[J]. FUEL & CHEMICAL PROCESSES, 2020, 51(5): 7-10.