Ferrochrome is a critical alloying element for the global green transition, yet its production is characterized by high energy and carbon intensity. While its strategic importance is well documented, existing Life Cycle Assessments often rely on aggregated literature data, obscuring the environmental consequences of operational variability. This study uses operational, site-specific data from a smelting complex to conduct a cradle-to-gate Life Cycle Assessment across three operational performance cases: Average, High, and Low Efficiency. Using the ReCiPe 2016 LCIA midpoint method, the analysis indicates that operational stability is a driver of environmental performance. High efficiency operations achieve a 10-15% reduction in environmental burdens compared to the baseline. Process instability during low efficiency periods incurs an environmental penalty of 15–25%. Results indicate background electricity from coal reliant electricity grids remains the dominant driver in 14 out of 16 impact categories. Terrestrial ecotoxicity and land occupation are primarily driven by foreground process control; these categories exhibited a 40 % variation between the high and low efficiency cases. The study further quantifies the mitigation potential of site-specific interventions, including furnace preheating, strategic ore blending, and solar integration in the energy supply. Findings demonstrate foreground metallurgical optimization is as critical as the transition to renewable energy for the sustainable production of ferrochrome. This research provides a data-driven blueprint for industry stakeholders to better understand the complexities and constraints of ferrochrome production, facilitating a deeper understanding of how operational changes influence human health, ecosystems, and resource depletion.
Baumgartner et al. (Wed,) studied this question.