Estimation of Deterioration of Coke Strength by CO<SUB>2</SUB> Reaction

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  • CO<SUB>2</SUB>との反応によるコークス強度低下の予測
  • CO2との反応によるコークス強度低下の予測
  • CO2 ト ノ ハンノウ ニ ヨル コークス キョウド テイカ ノ ヨソク

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Abstract

The deterioration of coke in the blast furnace has been evaluated as the change in coke size due to reaction between coke and CO2 gas. To clarify the deterioration mechanism, a series of experiment has been carried out at each reaction temperature by using an apparatus for high temperature CO2 reaction.<BR>The main results obtaind are as follows.<BR>1) Based on the findings mentioned above, a model was developed for estimating the deterioration of coke strength by CO2 reaction.<BR>2) The model contained the influence of alkali in coke on deterioration of coke strength in the blast furnace.<BR>3) The deterioration of coke strength estimated by the model closely agreed with that measured at different reaction temperatures by using an apparatus for high temperature CO2 reaction.<BR>4) The influences of coke properties, operation condition in the blast furnace and alkali in coke on the deterioration of coke strength were discussed by using this model.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 76 (5), 675-682, 1990

    The Iron and Steel Institute of Japan

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