Preparation of highly reactive and high strength coke by the addition of ca-ion exchanged brown coal

Hironori Orikasa, Takashi Kyotani, Izumi Shimoyama, Daisuke Anraku

    研究成果: Article査読

    8 被引用数 (Scopus)

    抄録

    Synopsis : In order to obtain highly reactive cokes, a Ca-ion exchanged brown coal (Loy-Yang coal) was added to a caking coal (Goonyella coal) with different blending ratios and cokes were then prepared from these blended coal samples. With the addition of Ca-loaded coals, the CO2-gasi-fication reactivity of the resulting cokes was significantly increased. Their initial reactivity was particularly enhanced, at a maximum, being thirty times as high as the reactivity of a coke prepared from a single Goonyella coal. This is because the reactive part derived from the brown coal in each coke was initially gasified with the other part from the caking coal almost intact. Since, as coke texture, the former part (from the brown coal) is included in a matrix of the latter part (from the caking coal), the mechanical strength was not lowered so much, even though the cokes were gasified up to a conversion of 10%. In conclusion, this study demonstrates that some addition of a Ca-ion exchanged brown coal to a caking coal is quite promising for the production of highly reactive and high strength cokes.

    本文言語English
    ページ(範囲)272-279
    ページ数8
    ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
    96
    5
    DOI
    出版ステータスPublished - 2010 5

    ASJC Scopus subject areas

    • 凝縮系物理学
    • 物理化学および理論化学
    • 金属および合金
    • 材料化学

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