Biodiesel production with DES (deep eutectic solvent) catalyst using used cooking oil feedstock through two-stage transesterification process

  • Fitri Hadiah Department of Chemical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indonesia
  • Nur Kemala Debi Lestari Department of Chemical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indonesia
  • Mughni Ayahanda Putri Department of Chemical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indonesia
  • Budi Santoso Department of Chemical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indonesia
  • Rahmawati Rahmawati Department of Electrical Engineering, Faculty of Engineering, Universitas Sriwijaya, Palembang - Indonesia
Keywords: biodiesel, catalyst, deep eutectic solvent, transesterification, waste cooking oil

Abstract

Most of biodiesel in Indonesia is still produced by costly processed utilizing pricey catalysts and high grade fatty acid methyl esther (FAME). Low cost catalysts need to be invented in order to make biodiesel more affordable, while raw material also need to be obtained from low cost alternatives. such as broadly available waste cooking oil.This research used waste cooking oil as raw material in biodiesel transesterification process, utilizing DES (Deep Eutectic Solvent) K2CO3-gliserol, as alternative catalyst. The output was biodiesel with near SNI 7182:2015 criteria. Optimum biodiesel production was achieved in low 65 oC temperature while utilizing two step transesterification process using DES K2CO3-gliserol 5.5 % and 35 % methanol, whereas glycerol total was 0.32 % and methyl esther contain was 96.89 %.

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Published
2024-03-30