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Introduction of Steelmaking Process with Resource Recycling

  • Thematic Section: Sustainable Iron and Steelmaking
  • Published:
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Abstract

Steel scrap does not need reduction energy, unlike iron ore. Therefore, it is efficient in terms of recycling steel resources and suppressing CO2 gas emissions when melting large quantities of scrap. Various methods of melting scrap with converter have been reported, including a heat supply method and a steelmaking process using scrap melting, and scrap melting has been shown to be superior in terms of energy consumption. In 1993, Hirohata Works of Nippon Steel & Sumitomo Metal Corporation commercially established a new process, called scrap melting process (SMP). The SMP utilizes steel scrap as its principal metal source to produce hot metal saving the reduction energy of iron ore. The SMP has served as the core process to recycle raw materials and fuels including waste tires. This article describes the scrap melting process, dust-reduction process and waste-tire recycling technology as core technologies and outlines Hirohata’s activities to recycle resources and the environmentally friendly technology that support these activities.

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Authors and Affiliations

  1. Hirohata Works, Production & Technical Control Div., Nippon Steel & Sumitomo Metal Corporation, 1 Fuji-cho, Hirohata-ku, Himeji, Hyogo Prefecture, 671-1188, Japan

    Tadashi Manabe

  2. Hirohata R&D Lab., R&D Lab., Nippon Steel & Sumitomo Metal Corporation, 1 Fuji-cho, Hirohata-ku, Himeji, Hyogo Prefecture, 671-1188, Japan

    Masaki Miyata

  3. Hirohata Unit, Nippon Steel & Sumikin Technology Co.,Ltd., 1 Fuji-cho, Hirohata-ku, Himeji, Hyogo Prefecture, 671-1188, Japan

    Kazuo Ohnuki

Authors
  1. Tadashi Manabe
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  2. Masaki Miyata
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  3. Kazuo Ohnuki
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Correspondence to Masaki Miyata.

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The contributing editor for this article was I. Sohn.

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Manabe, T., Miyata, M. & Ohnuki, K. Introduction of Steelmaking Process with Resource Recycling. J. Sustain. Metall. 5, 319–330 (2019). https://doi.org/10.1007/s40831-019-00221-1

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  • DOI: https://doi.org/10.1007/s40831-019-00221-1

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