Karakterisasi dan Optimasi penggunaan Katalis CaO/SiO₂ dari Biomassa untuk Sintesis Biodiesel dari Minyak Jelantah

Amalia Dian; Meka Saima Perdani; Hilman Imadul Umam; Christin Octaviani Sitanggang; Eti Ayu Nurhana

Authors

Amalia Dian Universitas Singaperbangsa Karawang
Meka Saima Perdani Universitas Singaperbangsa Karawang
Hilman Imadul Umam Universitas Singaperbangsa Karawang
Christin Octaviani Sitanggang Universitas Singaperbangsa Karawang
Eti Ayu Nurhana Universitas Singaperbangsa Karawang

Keywords:

Biodiesel, Catalyst, Eggshell, Rice Husk

Abstract

Environmentally friendly biodiesel can be produced from used cooking oil through transesterification with heterogeneous catalysts. This study synthesized CaO–SiO₂ catalysts from eggshells and rice husks through calcination and impregnation, with a reaction at 65°C, an oil:methanol ratio of 1:9, and a catalyst variation of 4–8%. FTIR, SEM, and BET characterizations showed the presence of CaO and Si–O–Si with porous morphology and surface area that support catalytic activity. The best results were achieved at 4% catalyst with a conversion of 63.64%, demonstrating the potential of biomass as a sustainable catalyst for biodiesel production.

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