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KINETIKA REAKSI TRANSESTERIFIKASI MINYAK JELANTAH MENJADI BIODIESEL MENGGUNAKAN KATALIS DEEP EUTECTIC SOLVENT K2CO3-GLISEROL

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This study analyzes kinetics of biodiesel transesterification using waste cooking oil as feedstock with a Deep Eutectic Solvent (DES) catalyst based on K₂CO₃–glycerol. The transesterification process was carried out at catalyst concentrations of 4,5%, 5,5% and 6,5% (w/w oil) and reaction temperatures of 45°C, 55°C and 65°C for 4 hours. The biodiesel properties analyzed included viscosity, density, acid value, methyl ester content, total glycerol and the determination of reaction kinetic order. The results showed that increasing temperature and catalyst concentration accelerated the reaction rate and enhanced the methyl ester content with the optimum methyl ester content obtained at 65°C and 6,5% catalyst concentration, reaching 96,38%-by mass. Kinetic analysis revealed that the transesterification reaction followed second-order reaction with respect to triglycerides with the reaction rate constant (k) increasing along with temperature. The activation energy (Ea) obtained from the Arrhenius plot was 280,5268 J/mol with an Arrhenius coefficient of 2,095 s⁻¹. These findings demonstrate that the K₂CO₃–glycerol DES catalyst has strong potential as an environmentally friendly catalyst for biodiesel production from waste cooking oil.

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Detail Information

Series Title

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Call Number

T1871572025

Publisher

Palembang : Prodi Magister Teknik Kimia, Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xvi, 112 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

662.807

Content Type

Text

Media Type

unmediated

Carrier Type

other (computer)

Edition

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Subject(s)

Prodi Magister Teknik Kimia
Teknologi Bahan Bakar--Minyak Jelantah

Specific Detail Info

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Statement of Responsibility

MI

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