煤液化沥青制备针状焦的试验研究  

Experimental Study on Preparation of Needle Coke Using Coal Liquefaction Pitch

作　　者：常鸿雁[1,2] 张元新[1,2] 李克健[1,2] 章序文[1,2] 程时富[1,2] 

机构地区：[1]中国神华煤制油化工有限公司上海研究院,上海201108 [2]煤炭直接液化国家工程实验室,上海201108

出　　处：《煤炭技术》2017年第8期274-276,共3页Coal Technology

基　　金：神华集团科技创新项目(MZY-10)

摘　　要：以煤液化沥青为原料,在高压釜中进行热缩聚炭化合成针状焦,通过偏光显微镜及扫描电子显微镜SEM对产物的形貌和组织结构进行了表征分析。试验结果表明:炭化温度是影响针状焦性能的主要因素,炭化温度为420℃~440℃时得到针状焦的性能较好;炭化时间延长,有利于针状焦的粉末电阻率和真密度的增大。在中试装置上制备出了各项指标优于或相当于国外某品牌优质针状焦。The coal liquefaction pitch was selected as raw material to prepare needle coke in the autoclave. The microstructure of the cokes was analyzed by SEM and polarized light microscopy.Results show that carbonization temperature is the main factor affecting the performance of needle coke,and the needle coke has good performance at carbonization temperature of 420 ℃ -440 ℃. The carbonization time prolonged is conducive to the increase of needle coke powder resistivity and true density. The needle cokes that are better than or equivalent to a foreign brand coke were prepared in pilot plant.

关 键 词：煤液化沥青 针状焦 炭化条件 

分 类 号：TQ529[化学工程—煤化学工程]