WANG Guangyao;YAN Bingfeng;

• 1:Coal Chemistry Branch of China Coal Research Institute
• 2:State Key Laboratory of Coal Mining and Clean Utilization

Abstract：

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.

Key Words： coal-based asphalt;mesophase;carbon microbeads;aromatic;co-carbonization;thermal condensation

Abstract:

Keywords:

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)

Authors: WANG Guangyao;YAN Bingfeng;

DOI: 10.13226/j.issn.1006-6772.2018.03.010

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