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<p>The demand for magnesium is steadily progressing in the fields of structural and non-structural applications, but especially in automobiles, because its overall weight advantage results in increased fuel efficiency. The primary goal of the current study is to quantify cradle-to-gate environmental burdens associated with the developed electrothermal process for 1 ton magnesium production using GaBi software. The developed process is compared with the Pidgeon process of China and the electrolysis process of Israel and India. The collected data is analysed using the CML 2001 method. The primary impacts include abiotic depletion potential fossil of about 7.93E04 MJ, global warming potential of about 7.82E03 kg CO<sub>2</sub> eq., human toxicity potential of about 2.87E03 kg DCB eq., and marine aquatic ecotoxicity potential of 1.11E07 kg DCB eq. Few insignificant impacts, such as an acidification potential of 96.7&#xa0;kg SO<sub>2</sub> eq., a eutrophication potential of 4.15&#xa0;kg phosphate eq., and a terrestrial ecotoxicity potential of 21.1&#xa0;kg DCB eq., are also observed. Electricity contributes approximately 98% to the total environmental impacts across all categories. The life cycle analysis to produce primary magnesium via the Pidgeon process in China led to higher environmental damage potential compared to the developed electrothermal process and electrolysis process. The renewable energy sources and recycling can significantly reduce the environmental impact of primary magnesium production, making it more eco-friendly material.</p> Graphical Abstract <p></p>

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Life cycle environmental impacts of the electrothermal magnesium production: a comparative assessment with the Pidgeon and electrolysis methods

  • 期刊论文

  • 发表日期：

    2025年6月26日

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  • Madan Mohanasundaram,
  • A. Keerthi Vasan,
  • Shilpa M. Dhopte,
  • Rehan R. Sheikh,
  • Disilwa Seth,
  • Rohit B. Meshram

摘要

The demand for magnesium is steadily progressing in the fields of structural and non-structural applications, but especially in automobiles, because its overall weight advantage results in increased fuel efficiency. The primary goal of the current study is to quantify cradle-to-gate environmental burdens associated with the developed electrothermal process for 1 ton magnesium production using GaBi software. The developed process is compared with the Pidgeon process of China and the electrolysis process of Israel and India. The collected data is analysed using the CML 2001 method. The primary impacts include abiotic depletion potential fossil of about 7.93E04 MJ, global warming potential of about 7.82E03 kg CO2 eq., human toxicity potential of about 2.87E03 kg DCB eq., and marine aquatic ecotoxicity potential of 1.11E07 kg DCB eq. Few insignificant impacts, such as an acidification potential of 96.7 kg SO2 eq., a eutrophication potential of 4.15 kg phosphate eq., and a terrestrial ecotoxicity potential of 21.1 kg DCB eq., are also observed. Electricity contributes approximately 98% to the total environmental impacts across all categories. The life cycle analysis to produce primary magnesium via the Pidgeon process in China led to higher environmental damage potential compared to the developed electrothermal process and electrolysis process. The renewable energy sources and recycling can significantly reduce the environmental impact of primary magnesium production, making it more eco-friendly material.

Graphical Abstract