Toward the efficient recycling of alloying elements from end of life vehicle steel scrap

Hajime Ohno, Kazuyo Matsubae, Kenichi Nakajima, Yasushi Kondo, Shinichiro Nakamura, Tetsuya Nagasaka

    Research output: Contribution to journal › Article

    38 Citations (Scopus)

    Abstract

    There has been a sharp increase in the production of automobiles over the past decade. In 2010, one billion automobiles were in circulation worldwide. The automobile industry is one of the largest metals consumers and plays an important role in their sustainable use. Steel materials, including alloy steels that contain alloying elements (AEs) such as manganese, chromium, nickel, and molybdenum, are the main component of automobiles. The recycling of end-of-life vehicles (ELVs) significantly affects the cycling of iron, steel, and AEs. Currently, ELV recycling is performed using the electric arc furnace (EAF). In this method, losses of AEs are likely to occur because their presence is rarely considered. This study evaluated the environmental and economic benefits of alternative ELV recycling schemes, which allow more efficient utilization of AEs found in ELV-derived steel scrap (ELV-dSS). The AE contents in ELV-dSS (as car-parts) were estimated by means of a waste input-output material flow analysis (WIO-MFA) model extended for the detailed analysis of automobile composition. Using Japanese data, it was found that sorting ELV-dSS by parts can result in a significant recovery of AEs; more specifically, a 10-fold saving in AEs was achieved by sorting exhaust parts. The recoverable mass of AEs from sorted ELV-dSS was found to correspond to 8.2% of the annual consumption of AEs in Japan, as virgin resources in EAF steelmaking. ELV-dSS sorting was found to be significantly effective in the conservation of AE resources.

    Original languageEnglish
    Pages (from-to)11-20
    Number of pages10
    JournalResources, Conservation and Recycling
    Volume100
    DOIs
    Publication statusPublished - 2015 Apr 2

    Fingerprint

    recycling
    steel
    automobile
    sorting
    material flow analysis
    automobile industry
    vehicle
    End-of-life vehicles
    Scrap
    Steel
    resource
    molybdenum
    chromium
    manganese
    nickel
    fold
    iron
    Automobile
    metal
    economics

    Keywords

    • Alloying element
    • Electric arc furnace
    • End-of-life vehicle
    • Metals recycling
    • Scrap steel
    • Waste input-output material flow analysis

    ASJC Scopus subject areas

    • Waste Management and Disposal
    • Economics and Econometrics

    Cite this

    Toward the efficient recycling of alloying elements from end of life vehicle steel scrap. / Ohno, Hajime; Matsubae, Kazuyo; Nakajima, Kenichi; Kondo, Yasushi; Nakamura, Shinichiro; Nagasaka, Tetsuya.

    In: Resources, Conservation and Recycling, Vol. 100, 02.04.2015, p. 11-20.

    Research output: Contribution to journal › Article

    Ohno, H, Matsubae, K, Nakajima, K, Kondo, Y, Nakamura, S & Nagasaka, T 2015, 'Toward the efficient recycling of alloying elements from end of life vehicle steel scrap', Resources, Conservation and Recycling, vol. 100, pp. 11-20. https://doi.org/10.1016/j.resconrec.2015.04.001
    Ohno H, Matsubae K, Nakajima K, Kondo Y, Nakamura S, Nagasaka T. Toward the efficient recycling of alloying elements from end of life vehicle steel scrap. Resources, Conservation and Recycling. 2015 Apr 2;100:11-20. https://doi.org/10.1016/j.resconrec.2015.04.001
    Ohno, Hajime ; Matsubae, Kazuyo ; Nakajima, Kenichi ; Kondo, Yasushi ; Nakamura, Shinichiro ; Nagasaka, Tetsuya. / Toward the efficient recycling of alloying elements from end of life vehicle steel scrap. In: Resources, Conservation and Recycling. 2015 ; Vol. 100. pp. 11-20.
    @article{5aa105f4e18346ef8332314d4fe2ae3b,
    title = "Toward the efficient recycling of alloying elements from end of life vehicle steel scrap",
    abstract = "There has been a sharp increase in the production of automobiles over the past decade. In 2010, one billion automobiles were in circulation worldwide. The automobile industry is one of the largest metals consumers and plays an important role in their sustainable use. Steel materials, including alloy steels that contain alloying elements (AEs) such as manganese, chromium, nickel, and molybdenum, are the main component of automobiles. The recycling of end-of-life vehicles (ELVs) significantly affects the cycling of iron, steel, and AEs. Currently, ELV recycling is performed using the electric arc furnace (EAF). In this method, losses of AEs are likely to occur because their presence is rarely considered. This study evaluated the environmental and economic benefits of alternative ELV recycling schemes, which allow more efficient utilization of AEs found in ELV-derived steel scrap (ELV-dSS). The AE contents in ELV-dSS (as car-parts) were estimated by means of a waste input-output material flow analysis (WIO-MFA) model extended for the detailed analysis of automobile composition. Using Japanese data, it was found that sorting ELV-dSS by parts can result in a significant recovery of AEs; more specifically, a 10-fold saving in AEs was achieved by sorting exhaust parts. The recoverable mass of AEs from sorted ELV-dSS was found to correspond to 8.2{\%} of the annual consumption of AEs in Japan, as virgin resources in EAF steelmaking. ELV-dSS sorting was found to be significantly effective in the conservation of AE resources.",
    keywords = "Alloying element, Electric arc furnace, End-of-life vehicle, Metals recycling, Scrap steel, Waste input-output material flow analysis",
    author = "Hajime Ohno and Kazuyo Matsubae and Kenichi Nakajima and Yasushi Kondo and Shinichiro Nakamura and Tetsuya Nagasaka",
    year = "2015",
    month = "4",
    day = "2",
    doi = "10.1016/j.resconrec.2015.04.001",
    language = "English",
    volume = "100",
    pages = "11--20",
    journal = "Resources, Conservation and Recycling",
    issn = "0921-3449",
    publisher = "Elsevier",

    }

    TY - JOUR

    T1 - Toward the efficient recycling of alloying elements from end of life vehicle steel scrap

    AU - Ohno, Hajime

    AU - Matsubae, Kazuyo

    AU - Nakajima, Kenichi

    AU - Kondo, Yasushi

    AU - Nakamura, Shinichiro

    AU - Nagasaka, Tetsuya

    PY - 2015/4/2

    Y1 - 2015/4/2

    N2 - There has been a sharp increase in the production of automobiles over the past decade. In 2010, one billion automobiles were in circulation worldwide. The automobile industry is one of the largest metals consumers and plays an important role in their sustainable use. Steel materials, including alloy steels that contain alloying elements (AEs) such as manganese, chromium, nickel, and molybdenum, are the main component of automobiles. The recycling of end-of-life vehicles (ELVs) significantly affects the cycling of iron, steel, and AEs. Currently, ELV recycling is performed using the electric arc furnace (EAF). In this method, losses of AEs are likely to occur because their presence is rarely considered. This study evaluated the environmental and economic benefits of alternative ELV recycling schemes, which allow more efficient utilization of AEs found in ELV-derived steel scrap (ELV-dSS). The AE contents in ELV-dSS (as car-parts) were estimated by means of a waste input-output material flow analysis (WIO-MFA) model extended for the detailed analysis of automobile composition. Using Japanese data, it was found that sorting ELV-dSS by parts can result in a significant recovery of AEs; more specifically, a 10-fold saving in AEs was achieved by sorting exhaust parts. The recoverable mass of AEs from sorted ELV-dSS was found to correspond to 8.2% of the annual consumption of AEs in Japan, as virgin resources in EAF steelmaking. ELV-dSS sorting was found to be significantly effective in the conservation of AE resources.

    AB - There has been a sharp increase in the production of automobiles over the past decade. In 2010, one billion automobiles were in circulation worldwide. The automobile industry is one of the largest metals consumers and plays an important role in their sustainable use. Steel materials, including alloy steels that contain alloying elements (AEs) such as manganese, chromium, nickel, and molybdenum, are the main component of automobiles. The recycling of end-of-life vehicles (ELVs) significantly affects the cycling of iron, steel, and AEs. Currently, ELV recycling is performed using the electric arc furnace (EAF). In this method, losses of AEs are likely to occur because their presence is rarely considered. This study evaluated the environmental and economic benefits of alternative ELV recycling schemes, which allow more efficient utilization of AEs found in ELV-derived steel scrap (ELV-dSS). The AE contents in ELV-dSS (as car-parts) were estimated by means of a waste input-output material flow analysis (WIO-MFA) model extended for the detailed analysis of automobile composition. Using Japanese data, it was found that sorting ELV-dSS by parts can result in a significant recovery of AEs; more specifically, a 10-fold saving in AEs was achieved by sorting exhaust parts. The recoverable mass of AEs from sorted ELV-dSS was found to correspond to 8.2% of the annual consumption of AEs in Japan, as virgin resources in EAF steelmaking. ELV-dSS sorting was found to be significantly effective in the conservation of AE resources.

    KW - Alloying element

    KW - Electric arc furnace

    KW - End-of-life vehicle

    KW - Metals recycling

    KW - Scrap steel

    KW - Waste input-output material flow analysis

    UR - http://www.scopus.com/inward/record.url?scp=84929168934&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84929168934&partnerID=8YFLogxK

    U2 - 10.1016/j.resconrec.2015.04.001

    DO - 10.1016/j.resconrec.2015.04.001

    M3 - Article

    VL - 100

    SP - 11

    EP - 20

    JO - Resources, Conservation and Recycling

    JF - Resources, Conservation and Recycling

    SN - 0921-3449

    ER -

    Access to Document