Visualization and Modeling of Coke Pore Formation Mechanism

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  • コークス気孔形成メカニズムの解析とモデル化
  • コークス キコウ ケイセイ メカニズム ノ カイセキ ト モデルカ

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Abstract

Formation mechanism of coke pores is investigated based on the visualization and digital treatment of laser microscopic observation in order to estimate porosity of cokes prepared from coking and non-coking coals including their blended coals under various conditions. The estimated porosity of the cokes by multi-layered image analysis was well correlated with the coke properties including mechanical strengths previously evaluated, successfully revealing the influences of the different heating rate during carbonization and the different blending ratios on their changes, although the estimated values of the porosity by the multi-layered image analysis method were a little bit lower compared to their real values measured by JIS method. Modeling of coke pore formation in the relation to the mechanical strength is discussed based on the above results.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 92 (3), 191-197, 2006

    The Iron and Steel Institute of Japan

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