兰炭特性及应用研究进展

Research on the characteristic and application of semi-coke

为实现煤炭分级分质利用,提高兰炭资源利用效率,介绍了兰炭在我国的应用研究进展,论述了其在电石行业、电厂、冶金行业、化肥行业、废水处理、制备电极材料等方面的发展情况,最后提出兰炭行业存在的问题及发展方向。结果表明,兰炭作为掺混材料可应用于各行业,由于物料性质差异需针对性调整工艺指标或更换设备。兰炭企业应升级工艺技术和装备条件,提高产业化水平和产品附加值,将兰炭与无烟煤、烟煤等掺混,使其作为电石、冶金和化肥行业原料使用。基于兰炭粉末的特性和煤基活性炭制备工艺,可将兰炭粉末作为活性炭原料,采用微波加热法、磷酸活化制备高品质活性炭,实现资源的变废为宝。未来需对兰炭粉末制备活性炭的工艺条件和活化机理进行探究,以实现兰炭粉末的高效利用。

In order to realize the classification and utilization of coal and improve the utilization efficiency of semi-coke resources,the ap plication and research progress of semi-coke in China was introduced, and the summary of its application in calcium carbide industry, power plant,metallurgical industry, fertilizer industry, wastewater treatment and preparation of electrode materials were summarized. At last problems and development direction of semi -coke were proposed. The results show that semi -coke can be applied to various industries, and process index or equipment should be changed with the difference of material properties. Semi-coke enterprises should upgrade the technology and equipment conditions so as to raise the level of industrialization and added value of product. Semi-coke can be used as raw material mixed with anthracite coal and bituminous coal in calcium carbide industry, power plant, metallurgical industry. Based on characteristics of semi-coke powder and the preparation process of coal based activated carbon, high performance activated carbon made of semi-coke is prepared by microwave heating and phosphoric acid activated, so that the waste of resources is turned into treasure. In the future, the process conditions and activation mechanism of activated carbon prepared from semi-coke power should be explored to achieve more effi- cient use of semi-coke powder.