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In the future, biocarbon use and carbon capture is expected to be more common in the ferroalloysFerroalloys industry. This creates possibilities for utilisation of waste heat through industrial symbiosis with industries that require lower quality energyEnergy. This paper presents an overview of some of the concepts that present potential energyEnergy savings in the ferroalloysFerroalloys industry, and the potential for heat and material integration between ferroalloysFerroalloys production and biorefinery applications. A conceptual flowsheet model has been developed and used to evaluate the combined effects of different unit operations on the overall energyEnergy consumption of the integrated plant. Evaluation of these concepts: considering bio-char production and carbon capture as integral parts of metal productionMetal production, potential energyEnergy savings of 38–40% seems plausible in the silicon industry, and 36% in manganeseManganese.

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Industrial Symbiosis for Reduced CO2 Emissions and Energy Optimisation in Ferroalloys Production

  • 会议论文

  • 发表日期：

    2025年

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  • Halvor Dalaker,
  • Torbjørn Pettersen,
  • Bernd Wittgens

摘要

In the future, biocarbon use and carbon capture is expected to be more common in the ferroalloysFerroalloys industry. This creates possibilities for utilisation of waste heat through industrial symbiosis with industries that require lower quality energyEnergy. This paper presents an overview of some of the concepts that present potential energyEnergy savings in the ferroalloysFerroalloys industry, and the potential for heat and material integration between ferroalloysFerroalloys production and biorefinery applications. A conceptual flowsheet model has been developed and used to evaluate the combined effects of different unit operations on the overall energyEnergy consumption of the integrated plant. Evaluation of these concepts: considering bio-char production and carbon capture as integral parts of metal productionMetal production, potential energyEnergy savings of 38–40% seems plausible in the silicon industry, and 36% in manganeseManganese.