Identification and quantitative analysis of polarized light microstructure of coal-derived needle coke

LI Lei; LIN Xiong-chao; LIU Zhe; ZHANG Yu-kun; KOU Shi-bo; WANG Yong-gang

doi:10.19906/j.cnki.JFCT.2021011

Volume 49 Issue 3

Mar. 2021

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Article Navigation > Journal of Fuel Chemistry and Technology > 2021 > 49(3): 265-273

LI Lei, LIN Xiong-chao, LIU Zhe, ZHANG Yu-kun, KOU Shi-bo, WANG Yong-gang. Identification and quantitative analysis of polarized light microstructure of coal-derived needle coke[J]. Journal of Fuel Chemistry and Technology, 2021, 49(3): 265-273. doi: 10.19906/j.cnki.JFCT.2021011

Citation:

LI Lei, LIN Xiong-chao, LIU Zhe, ZHANG Yu-kun, KOU Shi-bo, WANG Yong-gang. Identification and quantitative analysis of polarized light microstructure of coal-derived needle coke[J]. Journal of Fuel Chemistry and Technology, 2021, 49(3): 265-273. doi: 10.19906/j.cnki.JFCT.2021011

Citation:

LI Lei, LIN Xiong-chao, LIU Zhe, ZHANG Yu-kun, KOU Shi-bo, WANG Yong-gang. Identification and quantitative analysis of polarized light microstructure of coal-derived needle coke[J]. Journal of Fuel Chemistry and Technology, 2021, 49(3): 265-273. doi: 10.19906/j.cnki.JFCT.2021011

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Identification and quantitative analysis of polarized light microstructure of coal-derived needle coke

doi: 10.19906/j.cnki.JFCT.2021011

School of Chemical & Environmental Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China

Funds: The project was supported by the sub-project of National Key Research and Development Program (2016YFB0600303031) and Beijing University Student Scientific Research and Entrepreneurship Action Plan Project (201911413103)

More Information

Corresponding author: Tel：13683273151，E-mail：linxiongchao@163.com; wyg1960@126.com
Received Date: 2020-10-21
Rev Recd Date: 2020-11-16

Available Online: 2021-03-19

Publish Date: 2021-03-19

Abstract

Abstract

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.
- pyrolysis,
- coking,
- microstructure,
- numerical analysis,
- quantitative analysis

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References(25)

References

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