摘要
以精制煤焦油沥青为原料制备针状焦。利用bricc-m煤岩自动测试系统和RICC-Imager图像分析软件,使用打点计数方法,对煤系针状焦偏光显微结构进行定量分析。进一步利用扫描电子显微镜进行针状焦微观结构解析。结果表明,在炭化温度为490℃、炭化压力为0.2 MPa、反应时间为6 h条件下制备的生焦,定量分析其广域流线型结构含量为87.8%,显示出较好的光学显微结构。对比传统人工定量分析方法,使用计算机打点计数方法进行定量分析,提高了测试结果的准确性,更加高效,是针状焦显微结构识别和定量分析的有效手段。
Coal-derived needle coke was prepared using refined coal tar pitch as feedstock.Its polarized light microstructure was quantitatively analyzed by bricc-m coal macerals automatic testing system with RICC-Imager analysis software and the dot counting method.Microstructure of needle coke was characterized using scanning electron microscope.The results indicate that the large domain streamline structure content of the prepared green coke is 87.8%under carbonization conditions of 490℃,0.2 MPa and 6 h,which shows good optical microstructure.Compared with the traditional quantitative analysis method,the quantitative analysis using dot counting method is more accurate and efficient.It can be used as an effective means for quantitative analysis of needle coke microstructure.
作者
李磊
林雄超
刘哲
张玉坤
寇世博
王永刚
LI Lei;LIN Xiong-chao;LIU Zhe;ZHANG Yu-kun;KOU Shi-bo;WANG Yong-gang(School of Chemical&Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2021年第3期265-273,共9页
Journal of Fuel Chemistry and Technology
基金
国家重点研发计划子课题(2016YFB0600303031)
北京市大学生科学研究与创业行动计划项目(201911413103)资助。
关键词
热解
焦化
显微结构
数值分析
定量分析
pyrolysis
coking
microstructure
numerical analysis
quantitative analysis
