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Ultrasound is an important method for advancing sustainable technology, with potential as a physical mechanism for biodiesel (BD) production. The present work examines the ultrasound-assisted transesterification (USTE) of an equivalent blend of non-edible oils, castor bean oil (CO) and bitter almond oil (BAO) to produce BD fuel via the optimized synthesis conditions. The response surface methodology (RSM) was employed to optimize the effect of the most significant factors affecting BD production. The highest yield BD (99.18%) was produced using 1.25% KOH, a 6:1 MeOH: oil molar ratio at 50 °C for 10 min. The typical BD was analyzed by 1H NMR (Proton nuclear magnetic resonance) and FTIR (Fourier transform infrared) spectroscopy, besides determining its fuel properties. The 1H NMR study showed a conversion rate of 98.5% for mixed oil into BD, a value close to the experimental result. The fuel properties of the produced BD were conformed to the ASTM standards. The results also showed that the BD produced via the USTE of mixed non-edible oils could be a promising renewable alternative for diesel fuel.

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Optimization of Biodiesel Production from Mixed Non-edible Oils Through Ultrasound-Assisted Transesterification Process

  • 会议论文

  • 发表日期：

    2026年

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  • Amenah A. Alfares,
  • Marwa H. Altamer,
  • Duaa H. Altamer,
  • Abdelrahman B. Fadhil

摘要

Ultrasound is an important method for advancing sustainable technology, with potential as a physical mechanism for biodiesel (BD) production. The present work examines the ultrasound-assisted transesterification (USTE) of an equivalent blend of non-edible oils, castor bean oil (CO) and bitter almond oil (BAO) to produce BD fuel via the optimized synthesis conditions. The response surface methodology (RSM) was employed to optimize the effect of the most significant factors affecting BD production. The highest yield BD (99.18%) was produced using 1.25% KOH, a 6:1 MeOH: oil molar ratio at 50 °C for 10 min. The typical BD was analyzed by 1H NMR (Proton nuclear magnetic resonance) and FTIR (Fourier transform infrared) spectroscopy, besides determining its fuel properties. The 1H NMR study showed a conversion rate of 98.5% for mixed oil into BD, a value close to the experimental result. The fuel properties of the produced BD were conformed to the ASTM standards. The results also showed that the BD produced via the USTE of mixed non-edible oils could be a promising renewable alternative for diesel fuel.