Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties

张文娟; 李铁虎; 卢萌; 侯翠岭

doi:10.1016/S1004-9541(13)60634-5

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Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties

能源、资源与环境技术 | Updated：2026-01-06

- Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties
- Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties
- 中国化学工程学报（英文版） 2013年21卷第12期页码：1391-13961004-954160634-5
- Affiliations：
  
  Department of Materials Science and Engineering, Northwestern Polytechnical University,Xi'an,China,710072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60634-5
  中图分类号：
- 纸质出版：2013
- Accepted：
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张文娟, 李铁虎, 卢萌, 等. Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties[J]. 中国化学工程学报（英文版）, 2013,21(12):1391-13961004-954160634-5.

ZHANG Wenjuan, LI Tiehu, LU Meng, HOU Cuiling. Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties[J]. Chin.J.Chem.Eng., 2013, 21(12): 1391-1396.
张文娟, 李铁虎, 卢萌, 等. Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties[J]. 中国化学工程学报（英文版）, 2013,21(12):1391-13961004-954160634-5. DOI： 10.1016/S1004-9541(13)60634-5.

ZHANG Wenjuan, LI Tiehu, LU Meng, HOU Cuiling. Comparative Study of the Modification of Coal Tar Pitch for Higher Carbonization Yield and Better Properties[J]. Chin.J.Chem.Eng., 2013, 21(12): 1391-1396. DOI： 10.1016/S1004-9541(13)60634-5.

摘要

Abstract

Parent coal tar pitch (CTP) was modified with boric acid (BA)

cinnamaldehyde (CMA) and the mixture of BA and CMA

respectively. The parent CTP and three modified CTPs were characterized by elemental analysis

thermogravimetric analysis

Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy. The four samples were carbonized at different temperatures and resultant carbonized products were characterized by FT-IR spectroscopy

X-ray diffraction and polarized-light microscopy. The results show that the morphologies and carbonization behaviors of the parent CTP and modified CTPs are quite different. The carbonization yield of the CTP modified with the mixture of BA and CMA is higher than that of CTP modified with BA or CMA only. In addition

the modification of CTP with 7 g of BA and 10 ml of CMA results in an increase in carbonization yield by 5.64%. During the pyrolysis of modified CTPs

the dehydration of BA or the distillation of CMA occurs at the temperature lower than 300 ℃

and methyl and methylene groups of the modified CTPs disappear gradually as temperature rises. Furthermore

the modification of CTP by the mixture of BA and CMA results in more intensive mesophase spheres than other modified CTPs

and the modified CTP is easier to be carbonized to form graphitic carbon.

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