Effect of woody biomass on reduction behavior of iron oxide

Kyohei Yokota, Kazuya Kunitomo, Ko-Ichiro Ohno, Jun Okazaki, Tsunehisa Nishimura, Satoshi Kogure

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

CO2 emissions in steel works accounts for about 15% of those in Japan (2011), and most of those are from blast furnace iron-making process. To reduce CO2 emissions, utilization of woody biomass in blast furnace process is considered. Woody biomass has the characteristic of carbon neutral, as well as high reactivity. CO2 emissions can be reduced by the use of woody biomass as coke substitution because of its characteristic of carbon neutral. High reactivity of reducing agent is expected to decline thermal reserve zone temperature, which causes improvement of reaction efficiency in the blast furnace and lowering of reducing agent rate. To assess the adequacy of woody biomass as reducing agent, we evaluated the characterization of woody biomass with the coke reaction simulator (CRS). To verify the effect of the use of woody biomass on thermal reserve zone temperature, we executed experiments to evaluate the effect of woody biomass coexisting in the ore layer on reduction behavior of iron oxide with the adiabatic blast furnace inner reaction simulator (BIS). With heat and mass balance analysis, we evaluated the effect of declining thermal reserve zone temperature on lowering of reducing agent rate and the effect of utilization of woody biomass as coke substitution on reducing CO2 emissions in blast furnace process.

元の言語英語
ホスト出版物のタイトル6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proc. from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore
ページ2105-2112
ページ数8
3
出版物ステータス出版済み - 12 1 2012
イベント6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Rio de Janeiro, ブラジル
継続期間: 10 14 201210 18 2012

その他

その他6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012
ブラジル
Rio de Janeiro
期間10/14/1210/18/12

Fingerprint

Iron oxides
Biomass
Blast furnaces
Reducing Agents
Reducing agents
Coke
Substitution reactions
Carbon
Simulators
ferric oxide
Steel
Temperature
Ores
Iron
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Metals and Alloys

これを引用

Yokota, K., Kunitomo, K., Ohno, K-I., Okazaki, J., Nishimura, T., & Kogure, S. (2012). Effect of woody biomass on reduction behavior of iron oxide. : 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proc. from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore (巻 3, pp. 2105-2112)

Effect of woody biomass on reduction behavior of iron oxide. / Yokota, Kyohei; Kunitomo, Kazuya; Ohno, Ko-Ichiro; Okazaki, Jun; Nishimura, Tsunehisa; Kogure, Satoshi.

6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proc. from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore. 巻 3 2012. p. 2105-2112.

研究成果: 著書/レポートタイプへの貢献会議での発言

Yokota, K, Kunitomo, K, Ohno, K-I, Okazaki, J, Nishimura, T & Kogure, S 2012, Effect of woody biomass on reduction behavior of iron oxide. : 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proc. from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore. 巻. 3, pp. 2105-2112, 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012, Rio de Janeiro, ブラジル, 10/14/12.
Yokota K, Kunitomo K, Ohno K-I, Okazaki J, Nishimura T, Kogure S. Effect of woody biomass on reduction behavior of iron oxide. : 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proc. from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore. 巻 3. 2012. p. 2105-2112
Yokota, Kyohei ; Kunitomo, Kazuya ; Ohno, Ko-Ichiro ; Okazaki, Jun ; Nishimura, Tsunehisa ; Kogure, Satoshi. / Effect of woody biomass on reduction behavior of iron oxide. 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012 - Including Proc. from the 42nd Ironmaking and Raw Materials Seminar, and the 13th Brazilian Symp. on Iron Ore. 巻 3 2012. pp. 2105-2112
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AU - Yokota, Kyohei

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AU - Ohno, Ko-Ichiro

AU - Okazaki, Jun

AU - Nishimura, Tsunehisa

AU - Kogure, Satoshi

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N2 - CO2 emissions in steel works accounts for about 15% of those in Japan (2011), and most of those are from blast furnace iron-making process. To reduce CO2 emissions, utilization of woody biomass in blast furnace process is considered. Woody biomass has the characteristic of carbon neutral, as well as high reactivity. CO2 emissions can be reduced by the use of woody biomass as coke substitution because of its characteristic of carbon neutral. High reactivity of reducing agent is expected to decline thermal reserve zone temperature, which causes improvement of reaction efficiency in the blast furnace and lowering of reducing agent rate. To assess the adequacy of woody biomass as reducing agent, we evaluated the characterization of woody biomass with the coke reaction simulator (CRS). To verify the effect of the use of woody biomass on thermal reserve zone temperature, we executed experiments to evaluate the effect of woody biomass coexisting in the ore layer on reduction behavior of iron oxide with the adiabatic blast furnace inner reaction simulator (BIS). With heat and mass balance analysis, we evaluated the effect of declining thermal reserve zone temperature on lowering of reducing agent rate and the effect of utilization of woody biomass as coke substitution on reducing CO2 emissions in blast furnace process.

AB - CO2 emissions in steel works accounts for about 15% of those in Japan (2011), and most of those are from blast furnace iron-making process. To reduce CO2 emissions, utilization of woody biomass in blast furnace process is considered. Woody biomass has the characteristic of carbon neutral, as well as high reactivity. CO2 emissions can be reduced by the use of woody biomass as coke substitution because of its characteristic of carbon neutral. High reactivity of reducing agent is expected to decline thermal reserve zone temperature, which causes improvement of reaction efficiency in the blast furnace and lowering of reducing agent rate. To assess the adequacy of woody biomass as reducing agent, we evaluated the characterization of woody biomass with the coke reaction simulator (CRS). To verify the effect of the use of woody biomass on thermal reserve zone temperature, we executed experiments to evaluate the effect of woody biomass coexisting in the ore layer on reduction behavior of iron oxide with the adiabatic blast furnace inner reaction simulator (BIS). With heat and mass balance analysis, we evaluated the effect of declining thermal reserve zone temperature on lowering of reducing agent rate and the effect of utilization of woody biomass as coke substitution on reducing CO2 emissions in blast furnace process.

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