摘要
以河南赵固二矿的无烟煤为研究对象,分析了物理化学性质,发现常规酸碱法制备超纯煤过程中存在反应不够彻底、脱灰效率不高等问题,在此基础上进行工艺改进采用强化酸碱法进行分步深度脱灰处理,运用单一变量法研究了酸碱溶液固比、时间、温度对于脱灰效果的影响。经过分步脱灰实验研究,得到灰分含量0.33%的超低灰煤,该研究对于高效率生产超低灰煤,提高煤基碳材料的纯度有着一定的促进作用,对于煤炭企业推行绿色能源理念、洁净煤技术的发展有着重要的意义。
Taking anthracite from Zhaogu No.2 mine in Henan province as the research object,the physical and chemical properties were analyzed,and it was found that in the process of preparing ultra-pure coal by conventional acid-base method,the reaction was not thorough enough and the deashing rate was not high.On this basis,the process was improved and enhanced acid-base method was adopted for step-by-step deep deashing treatment.The effects of liquid-solid ratio,time and temperature on the deashing effect of acid-base solution were studied by using single variable method.After the stepwise deashing experiment,the ultra-low ash coal with 0.33%ash content is obtained.This research plays a certain role in promoting the high-efficiency production of ultra-low ash coal and improving the purity of coal-based carbon materials,and is of great significance for coal enterprises to promote the concept of green energy and the development of clean coal technology.
作者
程传龙
邓小伟
房朝军
吕波
CHENG Chuanlong;DENG Xiaowei;FANG Chaojun;LYU Bo(College of Chemistry and Chemical Engineering,Henan Polytechnic University,Jiaozuo 454003,China)
出处
《煤炭技术》
CAS
2024年第10期282-285,共4页
Coal Technology
基金
国家自然科学基金项目(51904096)。
关键词
超低灰煤
无烟煤
强化酸碱法
深度脱灰
ultra-low ash coal
anthracite
enhanced acid-base method
deep desliming
