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Characterization of the Hot-Pressed Coal Briquettes Prepared with the HyperCoal

  • Yajie Wang
  • Haibin ZuoEmail author
  • Kaikai Bai
  • Jun Zhao
  • Jiansheng Chen
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

Due to the high compressive strength and good thermal ability, the hot-pressed coal briquette prepared with the HyperCoal is considered to be an excellent alternative fuel for the lump coal in the COREX. In this paper, state changes of GD-coal and KL-HyperCoal during the heating process were observed in situ through an ultra-high temperature laser confocal microscope. Compared with GD-coal, KL-HyperCoal has an excellent thermoplasticity, which contributes to the preparation of the hot-pressed coal briquettes with high mechanical strength. The Raman spectra and infrared spectra analysis were used to investigate the material structure of the hot-pressed coal briquettes. It is proved that increasing the hot-pressing temperature can improve the compressive strength, while extending the holding time period can hardly change the compressive strength. The above results indicate that HyperCoal can be used as a binder to effectively improve the performance of the hot-pressed coal briquettes.

Keywords

HyperCoal Coal briquette Hot-pressed Infrared spectra Raman spectra 

Notes

Acknowledgements

The present work was supported by the National Natural Science Foundation of China (No. 51574023) and the National Key Research and Development Program (2016YFB0600701).

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Copyright information

© The Minerals, Metals & Materials Society 2020

Authors and Affiliations

  • Yajie Wang
    • 1
  • Haibin Zuo
    • 1
    Email author
  • Kaikai Bai
    • 1
  • Jun Zhao
    • 1
  • Jiansheng Chen
    • 1
  1. 1.State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology BeijingBeijingChina

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