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The steel industry’s transition to Electric Arc Furnace (EAF) technology is key to decarbonization, as it enables increased scrap recycling. However, energy use in downstream processes—especially billet reheating furnaces—remains a challenge due to their high reliance on fossil fuels. Replacing natural gas with cleaner alternatives is therefore essential. This study evaluates the use of fluff, a residue from automotive scrap processing, as feedstock for syngas production via gasification. The syngas is then used as fuel in billet reheating. A Life Cycle Assessment was performed on SimaPro software 9.6.0.1 and the ReCiPe 2016 Midpoint method using pilot-scale data to compare environmental impacts between syngas and natural gas use as well as the role of sourcing renewable electricity from wind power in the production of syngas. Results show lower impacts for syngas in all categories except water consumption.

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Life Cycle Assessment of Fluff Residue Gasification as a Substitute for Natural Gas

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Stefane Caldeira,
  • Luciana Magalhães,
  • Wesley Cavalcante,
  • Julio Rivera,
  • Leonardo Ribeiro,
  • Patrícia Rezende

摘要

The steel industry’s transition to Electric Arc Furnace (EAF) technology is key to decarbonization, as it enables increased scrap recycling. However, energy use in downstream processes—especially billet reheating furnaces—remains a challenge due to their high reliance on fossil fuels. Replacing natural gas with cleaner alternatives is therefore essential. This study evaluates the use of fluff, a residue from automotive scrap processing, as feedstock for syngas production via gasification. The syngas is then used as fuel in billet reheating. A Life Cycle Assessment was performed on SimaPro software 9.6.0.1 and the ReCiPe 2016 Midpoint method using pilot-scale data to compare environmental impacts between syngas and natural gas use as well as the role of sourcing renewable electricity from wind power in the production of syngas. Results show lower impacts for syngas in all categories except water consumption.