Combustion rate of coke in quasi-particle at iron ore sintering process

Ko-Ichiro Ohno, Keigo Noda, Koki Nishioka, Takayuki Maeda, Masakata Shimizu

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

Temperature distribution in layer of the iron ore sintering process is one of the most important factors to decide the sinter quality. To estimate the temperature distribution in sinter layer needs knowledge of coke combustion rate. The purpose of this study is to clarify that coke combustion rate in the fine layer of the quasi-particle with considerations about void ratio and liquid formation. The following results were obtained. Interface chemical reaction rate constant, kc, was independent on the mixing ratio of coke. The higher mixing ratio of coke made the larger effective diffusion coefficient of oxygen, because the higher mixing ratio of coke made the higher void ratio in the sample after coke combustion. The coke combustion rate became small with increasing of liquid formation amount, because liquid phase in quasi-particle prevented oxygen diffusion in there.

元の言語英語
ページ(範囲)184-189
ページ数6
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
101
発行部数3
DOI
出版物ステータス出版済み - 1 1 2015

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Ore sintering
iron ores
coke
Iron ores
elementary excitations
Coke
sintering
mixing ratios
void ratio
Liquids
Temperature distribution
temperature distribution
Oxygen
oxygen
liquids
Reaction rates
Chemical reactions
Rate constants
chemical reactions
liquid phases

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

これを引用

Combustion rate of coke in quasi-particle at iron ore sintering process. / Ohno, Ko-Ichiro; Noda, Keigo; Nishioka, Koki; Maeda, Takayuki; Shimizu, Masakata.

:: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 巻 101, 番号 3, 01.01.2015, p. 184-189.

研究成果: ジャーナルへの寄稿記事

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