王光耀,颜丙峰
WANG Guangyao,YAN Bingfeng

• 1:煤炭科学技术研究院有限公司煤化工分院
• 2:煤炭资源高效开采与洁净利用国家重点实验室

摘要(Abstract)：

为研究芳烃共炭化对制备炭微球的影响,以中温沥青为原料,采用热缩聚法制备中间相炭微球,添加富芳烃组分蒽油,利用红外光谱表征原料结构,对生成的中间相炭微球进行元素分析、偏光分析以及粒度分析等,研究了不同蒽油添加量对中间相炭微球收率、C/H原子比、粒径等方面的影响。结果表明,最佳工艺操作条件为缩聚温度440℃,反应时间8 h。蒽油的存在可有效降低反应体系黏度,促进小球的长大和融并,适量添加蒽油可有效提高炭微球收率,使其粒度范围更加集中;而过量添加蒽油会降低原生喹啉不溶物的密度,不利于缩聚反应。蒽油添加量为5%时较合适,此时中间相炭微球收率为52.59%,C/H原子比为1.91,D10和D90分别为5.795和41.202μm。
In order to study the influence of aromatic co-carbonization on preparation of mesophase carbon microbeads(MCMB),medium temperature asphalt was used as raw material,and anthracene oil enriched aromatic components were added to prepare MCMB with thermal condensation.The structure of medium temperature asphalt was characterized by IR(infra-red) spectrum,and MCMB was analyzed by elemental analysis,polarizing microscope and particle size analysis.The influence of anthracene oil on yield,atomic ratio of C/H and particle size of MCMB was investigated detailedly.The results show that the optimized conditions for MCMB preparation are temperature at 440 ℃and reaction time 8 h. Anthracene oil can effectively reduce the viscosity of reaction system,and promote the growth and melting of microbeads.Addition of anthracene oil can effectively improve the yield of MCMB,and make the range of particle size narrow.However,excessive addition of anthracene oil can reduce the density of original quinoline insoluble,which prevents the polycondensation reaction. When the amount of anthracene oil is 5%,the yield of MCMB is 52.59%,atomic ratio of C/H is 1.91,and the diameter of D10 and D90 are 5.795μm and 41.202 μm respectively.

关键词(KeyWords)： 煤基沥青;中间相;炭微球;芳烃;共炭化;热缩聚法
coal-based asphalt;mesophase;carbon microbeads;aromatic;co-carbonization;thermal condensation

Abstract:

Keywords:

基金项目(Foundation): 煤科院技术创新基金资助项目(2016CX01);; 国家重点研发计划资助项目(2016YFB0600305)

作者(Author): 王光耀,颜丙峰
WANG Guangyao,YAN Bingfeng

DOI: 10.13226/j.issn.1006-6772.2018.03.010

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