• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Structure and Texture Design of Coal-Iron Ore Composite Aiming for Rapid Ironmaking Reaction and Reduction of Energy Consumption

Research Project

Project/Area Number 16360375
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Metal making engineering
Research InstitutionKYUSHU UNIVERCITY

Principal Investigator

SHIMUZU Masakata  Kyushu University, Faculty of Engineering, Professor, 大学院工学研究院, 教授 (30325500)

Co-Investigator(Kenkyū-buntansha) NISHIOKA Koki  Kyushu University, Faculty of Engineering, Assistant Professor, 大学院工学研究院, 助教授 (80294891)
MAEDA Takayuki  Kyushu University, Faculty of Engineering, Research Associate, 大学院工学研究院, 助手 (50150496)
NAKAGAWA Hiroshi  Kyushu University, Faculty of Engineering, Research Associate, 大学院工学研究院, 助手 (80260719)
Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥7,700,000 (Direct Cost: ¥7,700,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2005: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2004: ¥5,400,000 (Direct Cost: ¥5,400,000)
KeywordsIron ore / Gasification rate / Reduction rate / Coal / Hematite / Magnetite / 酸化鉄 / 揮発性還元ガス
Research Abstract

Carbon composite iron ore agglomerates were made from two kinds of iron ores that are hematite and magnetite and three kinds of coals with different fluidity by using a cold bond method and using flour as a binder. The effects of raw materials property such as oxidation degree of iron ore and fluidity of coal on the texture of carbon composite iron ore agglomerate were investigated The following results were obtained.
(1)From the microscopic observation of samples that was pre-heated at 500℃ in N2 gas stream, it was found that iron ore was surrounded by fused coal and large pore was existed in the sample using large fluidity coal. On the other hand, it was found that the particles of coal were remained without fusing and pore was existed between coal and iron ore in the sample using non-fluidity coal.
(2)The thermal diffusivity of sample using hematite ore was larger than that of sample using magnetite ore because the thermal diffusivity of hematite ore was larger than that of magnetite … More ore. The thermal diffusivity of sample using fluidity coal was larger than that of sample using non-fluidity coal. The heat path of sample using fluidity coal became thick because the contact between coal and ore became facet contact when the fluidity coal was used, and it is was thought that the thermal diffusivity of sample using fluidity coal became large.
(3)The reaction rate of sample using hematite ore became larger than that of sample using magnetite ore, and it became large using fluidity coal. The gasification rate was influenced by experimental temperature greatly and it increased with increasing the temperature. The gasification rate was very slow at 900℃ and the gasification reaction was retarded at this temperature because the CO_2 gas that was necessary for gasification reaction disappeared. Moreover, the reduction reaction at that temperature was retarded at an early stage because the CO gas was not generated. The reduction reaction and gasification reaction were proceeded immediately at 1200℃ because CO_2 gas generated by reduction reaction was used for gasification reaction effectively as the gasification rate was very fast. Less

Report

(4 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (13 results)

All 2007 2006 2005

All Journal Article (13 results)

  • [Journal Article] 炭材内装熱間成型ブリケットのガス化反応におよぼす雰囲気ガスと温度の影響2007

    • Author(s)
      植木 保昭ら
    • Journal Title

      鉄と鋼 93巻・1号

      Pages: 18-22

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 炭材内装ブリケットの反応速度に及ぼす原料性状の影響2007

    • Author(s)
      大菅 宏児ら
    • Journal Title

      CAMP-ISIJ 20巻・1号

      Pages: 155-155

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effects of Atmospheric Gas Composition and the Gasification of Coal in Hot Briquetting Carbon Composite Iron Ore2007

    • Author(s)
      Yasuaki Ueki et al.
    • Journal Title

      Tetsu-to-Hagane Vol.93, No.1

      Pages: 18-22

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Effect of Properties of Raw Material on Reauction Rate of Carbon composite Briquette2007

    • Author(s)
      Koji Osuga et al.
    • Journal Title

      CANP-ISIJ Vol.20, No.1

      Pages: 155-155

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 炭材内装熱間成型ブリケットのガス化反応におよぼす雰囲気ガスと温度の影響2007

    • Author(s)
      植木保昭ら
    • Journal Title

      鉄と鋼 93巻・1号

      Pages: 18-22

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 炭材内装ブリケットの反応速度に及ぼす原料性状の影響2007

    • Author(s)
      大菅宏児ら
    • Journal Title

      CAMP-ISIJ 20巻・1号

      Pages: 155-155

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 廃プラスチック、RDFの熱分解挙動と鉄鋼製錬への利用2006

    • Author(s)
      三井 隆太郎ら
    • Journal Title

      CAMP-ISIJ 19巻・1号

      Pages: 74-74

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2005 Annual Research Report
  • [Journal Article] 有機系一般廃棄物と酸化鉄混合体の還元挙動2006

    • Author(s)
      植木 保昭ら
    • Journal Title

      CAMP-ISIJ 19巻・4号

      Pages: 806-806

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Thermal Decomposition Behavior and Re-use in Ironmaking of Waste Plastic and RDF2006

    • Author(s)
      Ryutaro Mii et al.
    • Journal Title

      CANP-ISIJ Vol.19, No.1

      Pages: 74-74

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Reduction behavior of organic wastes and iron oxides mixtures2006

    • Author(s)
      Yasuaki Ueki et al.
    • Journal Title

      CANP-ISIJ Vol.19, No.4

      Pages: 806-806

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 有機系一般廃棄物と酸化鉄混合体の還元挙動2006

    • Author(s)
      植木保昭ら
    • Journal Title

      CAMP-ISIJ 19巻・4号

      Pages: 806-806

    • Related Report
      2006 Annual Research Report
  • [Journal Article] 古紙による酸化鉄の還元2005

    • Author(s)
      梶田佳子ら
    • Journal Title

      CAMP-ISIJ 18巻・1号

      Pages: 197-197

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Reduction of Iron Oxide by Using Carbonized Used Paper2005

    • Author(s)
      Yosiko Kajita et al.
    • Journal Title

      CANP-ISIJ Vol.18, No.1

      Pages: 197-197

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary

URL: 

Published: 2004-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi