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All Journal Jurnal Bio-Geo Material Dan Energi
Heraningsih , Sarah Fiebrina
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Humanities Electrical & Electronics Engineering Energy

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Impact of Temperature Variation on Biodiesel Yield and Biodiesel Quality from Waste Cooking Oil Catalyzed by Sulfonated Rubber Seed Shell Activated Carbon Meiyola, Nada Karima; Suryadri, Hadistya; Heraningsih , Sarah Fiebrina
Jurnal Bio-Geo Material Dan Energi Vol. 6 No. 1 (2026): Vol. 6 No. 1 (2026): Journal of Bio-Geo Material and Energy (BiGME), February 2
Publisher : PUI BiGME Universitas Jambi

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Abstract

The energy crisis and environmental issues have increased interest in biodiesel as a sustainable fuel. This study examined the effect of reaction temperatures, namely 50°C, 55°C, 60°C, 65°C, and 70°C on the yield and quality of biodiesel produced from a simultaneous esterification transesterification reaction using a 2 %wt catalyst and a mass ratio of methanol to oil, 9:1 for 1 hour. The results showed that temperature has a crucial role in the yield and quality of the resulting biodiesel. The highest yield is 72.62%, was achieved at a temperature of 65°C, producing biodiesel that suitable to SNI 7182:2015 with a density of 875.60 kg/m³, a viscosity of 2.86 cSt, and an acid number of 0.0065 mg-KOH/g. Temperatures above 65°C decreased the yield and quality due to methanol evaporation and incomplete conversion.
Co-Authors Meiyola, Nada Karima Suryadri, Hadistya