Substance flow analysis of zinc associated with iron and steel cycle in Japan, and environmental assessment of EAF dust recycling process

Kenichi Nakajima, Kazuyo Matsubae-Yokoyama, Shinichiro Nakamura, Satoshi Itoh, Tetsuya Nagasaka

    Research output: Contribution to journalArticle

    30 Citations (Scopus)

    Abstract

    Japanese zinc production in 2005 was 6.75×106t, and domestic demand of zinc was 4.82×105t. The main use of metallic zinc is in the surface coating of steel and the metal accounts for 62.8% of the domestic demand. The purposes of this study are as follows: (1) to identify the material flow of zinc associated with steel production, and (2) to estimate the environmental effects (energy consumption and CO2 emission reduction) of some intermediate dust treatment processes. The major conclusions are (a) In Japan, 6.16×106t of blast furnace/converter dust was generated In 2000, and this product contained 2.20×104t-Zn. 0.433×106t of EAF dust was generated and this dust contained 8.86×104t-Zn, and (b) 9.57 MJ of energy is required for producing 1 kg of zinc oxide by the Waelz process using EAF dust, and the estimated amount of CO2 emission in this process is 1.49 kg-CO 2. On the other hand, if the LAMS process proposed by the authors is employed, it Is estimated that there will be a reduction of 1.70 MJ in energy consumption and a reduction of 0.14 kg-CO2 in CO2 emissions.

    Original languageEnglish
    Pages (from-to)1478-1483
    Number of pages6
    JournalISIJ International
    Volume48
    Issue number10
    DOIs
    Publication statusPublished - 2008

    Fingerprint

    Steel
    Dust
    Recycling
    Zinc
    Iron
    Energy utilization
    Zinc Oxide
    Carbon Monoxide
    Blast furnaces
    Zinc oxide
    Environmental impact
    Metals
    Environmental assessments
    Coatings

    Keywords

    • Iron and steel
    • Material flow analysis
    • Recycling
    • Substance flow analysis
    • Zinc

    ASJC Scopus subject areas

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

    Cite this

    Substance flow analysis of zinc associated with iron and steel cycle in Japan, and environmental assessment of EAF dust recycling process. / Nakajima, Kenichi; Matsubae-Yokoyama, Kazuyo; Nakamura, Shinichiro; Itoh, Satoshi; Nagasaka, Tetsuya.

    In: ISIJ International, Vol. 48, No. 10, 2008, p. 1478-1483.

    Research output: Contribution to journalArticle

    Nakajima, Kenichi ; Matsubae-Yokoyama, Kazuyo ; Nakamura, Shinichiro ; Itoh, Satoshi ; Nagasaka, Tetsuya. / Substance flow analysis of zinc associated with iron and steel cycle in Japan, and environmental assessment of EAF dust recycling process. In: ISIJ International. 2008 ; Vol. 48, No. 10. pp. 1478-1483.
    @article{fe0b8e2391614e3ba39fc38456401ada,
    title = "Substance flow analysis of zinc associated with iron and steel cycle in Japan, and environmental assessment of EAF dust recycling process",
    abstract = "Japanese zinc production in 2005 was 6.75×106t, and domestic demand of zinc was 4.82×105t. The main use of metallic zinc is in the surface coating of steel and the metal accounts for 62.8{\%} of the domestic demand. The purposes of this study are as follows: (1) to identify the material flow of zinc associated with steel production, and (2) to estimate the environmental effects (energy consumption and CO2 emission reduction) of some intermediate dust treatment processes. The major conclusions are (a) In Japan, 6.16×106t of blast furnace/converter dust was generated In 2000, and this product contained 2.20×104t-Zn. 0.433×106t of EAF dust was generated and this dust contained 8.86×104t-Zn, and (b) 9.57 MJ of energy is required for producing 1 kg of zinc oxide by the Waelz process using EAF dust, and the estimated amount of CO2 emission in this process is 1.49 kg-CO 2. On the other hand, if the LAMS process proposed by the authors is employed, it Is estimated that there will be a reduction of 1.70 MJ in energy consumption and a reduction of 0.14 kg-CO2 in CO2 emissions.",
    keywords = "Iron and steel, Material flow analysis, Recycling, Substance flow analysis, Zinc",
    author = "Kenichi Nakajima and Kazuyo Matsubae-Yokoyama and Shinichiro Nakamura and Satoshi Itoh and Tetsuya Nagasaka",
    year = "2008",
    doi = "10.2355/isijinternational.48.1478",
    language = "English",
    volume = "48",
    pages = "1478--1483",
    journal = "ISIJ International",
    issn = "0915-1559",
    publisher = "Iron and Steel Institute of Japan",
    number = "10",

    }

    TY - JOUR

    T1 - Substance flow analysis of zinc associated with iron and steel cycle in Japan, and environmental assessment of EAF dust recycling process

    AU - Nakajima, Kenichi

    AU - Matsubae-Yokoyama, Kazuyo

    AU - Nakamura, Shinichiro

    AU - Itoh, Satoshi

    AU - Nagasaka, Tetsuya

    PY - 2008

    Y1 - 2008

    N2 - Japanese zinc production in 2005 was 6.75×106t, and domestic demand of zinc was 4.82×105t. The main use of metallic zinc is in the surface coating of steel and the metal accounts for 62.8% of the domestic demand. The purposes of this study are as follows: (1) to identify the material flow of zinc associated with steel production, and (2) to estimate the environmental effects (energy consumption and CO2 emission reduction) of some intermediate dust treatment processes. The major conclusions are (a) In Japan, 6.16×106t of blast furnace/converter dust was generated In 2000, and this product contained 2.20×104t-Zn. 0.433×106t of EAF dust was generated and this dust contained 8.86×104t-Zn, and (b) 9.57 MJ of energy is required for producing 1 kg of zinc oxide by the Waelz process using EAF dust, and the estimated amount of CO2 emission in this process is 1.49 kg-CO 2. On the other hand, if the LAMS process proposed by the authors is employed, it Is estimated that there will be a reduction of 1.70 MJ in energy consumption and a reduction of 0.14 kg-CO2 in CO2 emissions.

    AB - Japanese zinc production in 2005 was 6.75×106t, and domestic demand of zinc was 4.82×105t. The main use of metallic zinc is in the surface coating of steel and the metal accounts for 62.8% of the domestic demand. The purposes of this study are as follows: (1) to identify the material flow of zinc associated with steel production, and (2) to estimate the environmental effects (energy consumption and CO2 emission reduction) of some intermediate dust treatment processes. The major conclusions are (a) In Japan, 6.16×106t of blast furnace/converter dust was generated In 2000, and this product contained 2.20×104t-Zn. 0.433×106t of EAF dust was generated and this dust contained 8.86×104t-Zn, and (b) 9.57 MJ of energy is required for producing 1 kg of zinc oxide by the Waelz process using EAF dust, and the estimated amount of CO2 emission in this process is 1.49 kg-CO 2. On the other hand, if the LAMS process proposed by the authors is employed, it Is estimated that there will be a reduction of 1.70 MJ in energy consumption and a reduction of 0.14 kg-CO2 in CO2 emissions.

    KW - Iron and steel

    KW - Material flow analysis

    KW - Recycling

    KW - Substance flow analysis

    KW - Zinc

    UR - http://www.scopus.com/inward/record.url?scp=57749090179&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=57749090179&partnerID=8YFLogxK

    U2 - 10.2355/isijinternational.48.1478

    DO - 10.2355/isijinternational.48.1478

    M3 - Article

    VL - 48

    SP - 1478

    EP - 1483

    JO - ISIJ International

    JF - ISIJ International

    SN - 0915-1559

    IS - 10

    ER -