CH_4-H_2-H_2O および CO-CO_2 系におけるアイアンカーバイドの相平衡 Phase Equilibria of Iron Carbide in CH_4-H_2-H_2O and CO-CO_2 Gas Mixtures

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Phase diagrams of Fe, FeO, Fe_3O_4, Fe_2C and Fe_3C in CH_4-H_2-H_2O and CO-CO_2 gas mixtures were made by using thermodynamic data at every 50℃ in the temperature range from 550 to 850℃. On the basis of these diagrams, experimental conditions were determined. The reaction experiments were carried out by using fluidized bed or fixed bed reactor with the sample of two kinds of ore (dense and porous, 0.4-0.5 mm in diameter). The thermodynamic date used can be recommended because the experimental results under some conditions near the main phase boundary agreed well with the estimated one. It was confirmed that Fe_3C was produced via Fe_3O_4 in CO-CO_2 gas mixtures at 550℃. However, the reaction rete was very slow. This Fe_3C hardly decomposed to Fe and C. When the steam of 5 vol% or more was included in the CH_4-H_2-H_2O gas mixtures, Fe_3C was not generated in 0.1 MPa at all.

収録刊行物

  • 鐵と鋼 : 日本鐡鋼協會々誌

    鐵と鋼 : 日本鐡鋼協會々誌 85(1), 14-19, 1999-01-01

    社団法人日本鉄鋼協会

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各種コード

  • NII論文ID(NAID)
    110001481874
  • NII書誌ID(NCID)
    AN00151251
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    00211575
  • NDL 記事登録ID
    107214
  • NDL 雑誌分類
    ZP42(科学技術--金属工学・鉱山工学--鉄鋼)
  • NDL 請求記号
    Z17-356
  • データ提供元
    CJP書誌  NDL  NII-ELS  J-STAGE 
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