Transforming Palm Waste into Renewable Reductant: Torrefied Palm Kernel Shell as a Sustainable Reductant for Low-Carbon Ferronickel ProductionWinny Wulandari, Akhmat Fauzan Saputra, Rama Haidar and Taufiq HidayatE3S Web Conf., 693 (2026) 03006DOI: https://doi.org/10.1051/e3sconf/202669303006