| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Study on the Basic Physical Properties of Quinoline Insoluble Components from Coal Tar Pitch and Micro-structure of Its Derived Pitch Carbon |
| YUE Li1, ZHU Yaming1,2, GAO Lijuan1, HU Chaoshuai1,2, LAI Shiquan1, ZHAO Xuefei1,2
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1 School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China;
2 Liaoning Provincial Key Laboratory of Chemical Metallurgy, Anshan 114051, China |
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Abstract Quinoline insoluble is a kind of macromolecular carbon particle component in the coal tar pitch, which has important influence on the properties and application of coal tar pitch. In order to a detailed analysis of quinoline insoluble, three kinds of quimoline insolubles (QI-M, QI-O and QI-N) which obtained from varies coal tar pitch have been used as raw materials. Briefly, QI-M, QI-O and QI-N have been separated from me-dium pitch, oxidized modified pitch, and thermal polycondensation pitch, respectively. The basic physical properties of three kinds of QIs have been determined by the ultimate analyzer, TGA, particle size analyzer, and polarizing microscope, separately. The microstructure of quinoline insoluble based pitch carbon have been studied by the SEM, XRD, Raman spectrum and the combination of curve-fitted method. The result shown that, QI-M is a kind of submicron carbon sphere with good uniformity. QI-N is a kind of spherical carbon with uniform particle size distribution of about 16 μm. The pyrolisis behavior of three quinoline insolubles is varied. Briefly, both of pyrolysis reaction and condensation reaction have been taken place at the temperature range from 250 ℃ to 500 ℃ for QI-O and QI-N, respectively. However, only pyrolysis reaction has been taken place for QI-M at this temperature range. The contents of graphite crystal (IG/IAll) of quinoline insoluble based pitch carbon (QI-M-C, QI-O-C and QI-N-C) were 10.61%, 6.84%, and 12.43%, respectively. And the contents of disordered carbon (ID3/IAll) were 9.18%, 11.09%, and 6.06%, separately. What’s more, the crystalline sizes (Lc) of each quinoline insoluble based pitch carbons were 1.62 nm, 1.35 nm, and 1.85 nm. QI-N has good graphitization ability, but the graphitization ability of QI-O was poor.
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Published: 25 April 2020
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| Fund:This work was financially supported by the National Natural Science Foundation of China (U1361126), Natural Science Foundation of Liaoning Province (20180551218), the Youth Fund of the Education Department of Liaoning Province (2017LNQN04), Excellent Talents Training Program of University of Science and Technology Liaoning (2018RC07), and the Youth Fund of University of Science and Technology Liaoning (2017QN06). |
About author:: Li Yueis currently a lecturer and also a Ph.D. candidate of University of Science and Technology Liaoning (USTL). She graduated from Liaoning Shihua University in June 2005 and received her M.S. degree in chemical technology, and the same year she joined the School of Chemical Engineering of University of Science and Technology Liaoning to work so far, mainly engaged in coal tar pitch deep processing.
Yaming Zhuis currently a lecturer and also a master supervisor in the University of Science and Technology Liaoning (USTL). He received his Ph.D. degrees in chemical engineering and technology from University of Science and Technology Liaoning (USTL) in 2017, and the same year he joined the school of chemical engineering of University of Science and Technology Liao-ning to work so far, mainly engaged in the preparation and application of coal tar pitch based carbon materials. He has published more than 20 papers in domestic and foreign periodicals and applied for 5 invention patents.
Xuefei Zhaois currently a professor and also a ph.D. supervisor in the University of Science and Technology Liaoning (USTL). He graduated from Dalian University of Technology (DUT) in 2011 and received his Ph.D. degree in chemical technology. Since March 1982, he has been teaching in the School of Chemical Engineering of University of Science and Technology Liao-ning (USTL), mainly engaged in the coal tar deep processing and the preparation and application of coal-based new carbon materials. He has published more than 100 papers in domestic and foreign periodicals and applied for more than 10 invention patents, in which 5 patents have been authorized and 1 patent result has been transferred. |
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2020, Vol. 34 
