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Fajry, Zaydan Al
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Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology

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Modification of Calcium Oxide Catalyst Derived from Chicken Eggshell Waste with Magnesium Oxide to Enhance Biodiesel Synthesis from Crude Palm Oil Hamidah, Fikriyah; Septaningsih, Dewi Anggraini; Fahri, Mirad; Basuki, Rahmat; Gunaryo; Subiakto, Amadea Kenyoning Hapsari; Nismarawati, Ardine Kusuma; Ningrum, Hanifa Setya; Fajry, Zaydan Al; Erwinda, Maura Agnes; Afandi, Achmad Kusyairi
Sorption Studies Vol. 1 No. 2 (2025): Sorption Studies, December 2025
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ss.v1i2.115

Abstract

Biodiesel is a promising renewable energy source to replace conventional diesel fuel. This study aims to improve biodiesel production efficiency by utilizing a heterogeneous catalyst derived from chicken eggshell-based calcium oxide (CaO), modified with magnesium oxide (MgO). The catalyst was synthesized via co-precipitation and applied in both transesterification and interesterification reactions using crude palm oil (CPO) as feedstock. The optimum reaction was conducted at 65°C for 180 minutes with a 9:1 methyl acetate/methanol to oil molar ratio and 2.5 wt% catalyst loading. The modified CaO.MgO catalyst outperformed unmodified CaO, yielding 89.63% and 99.96% biodiesel via interesterification and transesterification, respectively. The catalyst characterization was performed using FTIR, XRD, and GC-MS, confirming the enhancement in basicity, crystallinity, and FAME content. This study demonstrates the potential of waste-derived catalysts in sustainable biodiesel production while addressing environmental waste issues.
Co-Authors Afandi, Achmad Kusyairi Erwinda, Maura Agnes Fahri, Mirad Gunaryo Hamidah, Fikriyah Ningrum, Hanifa Setya Nismarawati, Ardine Kusuma Rahmat Basuki Septaningsih, Dewi Anggraini Subiakto, Amadea Kenyoning Hapsari