Catalytic effect of fe, CaO and molten oxide on the gasification reaction of coke and biomass char

Shigeru Ueda, Kentaro Watanabe, Ryo Inoue, Tatsuro Ariyama

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Increased reactivity of the reducing agent is desired for the blast furnace operation with a low reducing agent. In the present study, the catalytic effects of iron, calcium oxide, and a multi component oxide melt on the gasification reaction of reducing agent were investigated. The addition of Fe, and CaO enhanced the gasification reaction. The catalytic effects of Fe and CaO were only observed in the atmospheres of around Fe/FeO equilibration and stable CaCO3 conditions, respectively. Moreover, the conditions of contact between the reducing agent and the added material affect the reactivity of the reducing agent. Molten FeOX-SiO2-Al2O 3 oxide also enhances the gasification reaction of the reducing agent. The reactivity of the carbon iron ore composite supported with Fe and multi component oxides was measured. It was found that the contact between coke and iron ore in the carbon iron ore composite enhances the reactivity.

Original languageEnglish
Pages (from-to)1262-1268
Number of pages7
JournalIsij International
Volume51
Issue number8
DOIs
Publication statusPublished - 2011 Aug 15

Keywords

  • Blast furnace
  • Carbon iron ore composite
  • Carbonation reaction
  • Gasification
  • Ironmaking
  • Molten oxide
  • REDOX reaction
  • Reducing agent

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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