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Quantification of energy and environmental impacts in uncommon electric steelmaking scenarios to improve process sustainability

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  • Matino, Ismael
  • Colla, Valentina
  • Baragiola, Stefano

Abstract

The electric steel production is in line with the circular economy concept due to the reuse of scrap. However, being energy intensive industries with a significant environmental impact, electric steelworks can increase their competitiveness and environmental sustainability through an adequate management of resource and energy. The paper presents a work related to the quantification of electric energy consumption and environmental impact of unconventional electric steelmaking scenarios while simultaneously monitoring the steel composition. The exploitation of an ad-hoc developed Decision Support Tool highlights that scrap quality strongly affects the monitored energy and environmental parameters (quantified in terms of Key Performance Indicators and aggregated in a Global Index). Moreover, the developed simulations pointed out that the removal of Fe-alloy addition during EAF tapping allows reducing slag and improving the yield by preserving also the steel quality while slightly increasing the electric energy consumption: in countries where the price and the emissions related to the production of electricity are low, this can be a good compromise to improve the environmental sustainability of the sector. The study shows that also limited modifications of the well-known electric steelmaking process could help to increase the sustainability of this energy intensive industrial production route.

Suggested Citation

  • Matino, Ismael & Colla, Valentina & Baragiola, Stefano, 2017. "Quantification of energy and environmental impacts in uncommon electric steelmaking scenarios to improve process sustainability," Applied Energy, Elsevier, vol. 207(C), pages 543-552.
    • Handle: RePEc:eee:appene:v:207:y:2017:i:c:p:543-552
    DOI: 10.1016/j.apenergy.2017.06.088
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    2. Maurizio Massaro & Silvana Secinaro & Francesca Dal Mas & Valerio Brescia & Davide Calandra, 2021. "Industry 4.0 and circular economy: An exploratory analysis of academic and practitioners' perspectives," Business Strategy and the Environment, Wiley Blackwell, vol. 30(2), pages 1213-1231, February.
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