Total material requirement of scrap steel from end-of-life vehicle

Eiji Yamasue, Kazuyo Matsubae, Kenichi Nakajima, Ichiro Daigo, Keiichi N. Ishihara

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this study, the concept of total material requirement (TMR) has been introduced to quantify the recyclability of scrap steel from end-of-life (EoL) vehicle. The TMRs for the recycling of scrap steels (urban ore TMR, UO-TMR) from the EoL vehicle have been estimated for four cases; conventional press-method, shredder and separation method, additional recycling of scrap steel from automobile shredder residue (ASR) and all-recycling using the press method, and the trade-off between the increase in function of recycled steel (in other words, decrease in influence of copper as contaminant) and the additional inputs such as pig iron or nickel required to create the increase in function were evaluated. As the results, the estimated UO-TMR ranged 3.7~4.0 kg/kg and the factors of "material itself" and "melting" were dominant. The effect of ASR input into electric arc furnace aiming the all-recycling was found to be canceled by additional lime input and energy to heat glass materials. Considering the dilution process by cold pig iron, the shredder and separation method is most effective in terms of TMR. Further the effectiveness of both dilution process using pig iron and nickel addition to suppress surface hot shortness is discussed.

Original languageEnglish
Pages (from-to)778-787
Number of pages10
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume100
Issue number6
DOIs
Publication statusPublished - 2014

Keywords

  • Automobile shredder residue
  • Copper
  • Dilution
  • End-of-life vehicle (ELV)
  • Nickel

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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