Effect of thermal treatment temperature on stacking structure and carbon aromaticity in coal

Ayumi Iwamoto, Shohei Matsuo, Yukinori Miyamoto, Yasuhiro Saito, Yohsuke Matsushita, Hideyuki Aoki, Yukihiro Kubota, Hideyuki Hayashizaki

研究成果: Article査読

抄録

To understand the properties of coking coal and coke during carbonization process, changes in stacking structure of carbon and carbon aromaticity were estimated using the XRD and NMR measurement techniques for the different four kinds of coking coals thermally treated at various temperatures. In the XRD measurement, the comparison of the diffraction patterns of the coal samples with and without decalcification indicated the proposed method could successfully eliminate peaks from ash components in the diffraction patterns. After thermal treatment, the average number of stacking layers in all the samples increased around temperature of 400-500 °C and slightly decreased around 500-700 °C. In addition, the average number of stacking layers of each sample tended to be larger for sample with higher carbon content. In the 13C-NMR measurement, the carbon aromaticity became larger for higher thermal treatment temperature, and the order of the carbon aromaticity almost corresponded with that of coke contraction ratio.

本文言語English
ページ(範囲)40-44
ページ数5
ジャーナルNihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy
97
2
DOI
出版ステータスPublished - 2018 1 1

ASJC Scopus subject areas

  • エネルギー(全般)

フィンガープリント

「Effect of thermal treatment temperature on stacking structure and carbon aromaticity in coal」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル