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Hydrodynamic Cavitation in Shockwave-Power-Reactor-Assisted Biodiesel Production in Continuous from Soybean and Waste Cooking Oil

Author

Listed:
  • James R. Vera-Rozo

    (GIMUP, Mechanical Engineering Program, University of Pamplona, Pamplona 543050, Colombia)

  • Edison A. Caicedo-Peñaranda

    (GISE, Electrical Engineering Program, University of Pamplona, Pamplona 543050, Colombia)

  • José M. Riesco-Avila

    (Department of Mechanical Engineering, University of Guanajuato, Salamanca 36885, Mexico)

Abstract

The transesterification process for biodiesel production is constrained by high thermal input, prolonged residence time, and intensive mechanical agitation. This study investigates process intensification via hydrodynamic cavitation using a custom-built Shockwave Power Reactor (SPR), enabling continuous biodiesel synthesis from soybean and used cooking oils. A statistically designed experimental matrix was applied to evaluate the reactor’s transient–stable thermal regime and the influence of operational parameters: rotor speed (1700–3415 rpm), volumetric flow rate (60–105 mL/min), methanol-to-oil molar ratio (6:1 to 12:1), and alkali catalyst type (NaOH or KOH). For benchmarking, conventional alkaline transesterification was optimized. The FAME yields from the SPR system exceeded 96.5% and complied with EN14103 standards. Specific energy analysis showed that cavitation-enhanced transesterification reduced energy consumption and peak temperature compared to traditional methods. The SPR’s capacity to induce high shear and localized turbulence under controlled cavitation offers a promising pathway for low-energy, scalable biodiesel production.

Suggested Citation

  • James R. Vera-Rozo & Edison A. Caicedo-Peñaranda & José M. Riesco-Avila, 2025. "Hydrodynamic Cavitation in Shockwave-Power-Reactor-Assisted Biodiesel Production in Continuous from Soybean and Waste Cooking Oil," Energies, MDPI, vol. 18(11), pages 1-14, May.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:11:p:2761-:d:1664750
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    References listed on IDEAS

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    1. Giannakis, Nikos & Carmona-Cabello, Miguel & Makri, Aikaterini & Leiva-Candia, David & Filippi, Katiana & Argeiti, Chrysanthi & Pateraki, Chrysanthi & Dorado, M.P. & Koutinas, Apostolis & Stylianou, E, 2023. "Spent coffee grounds and orange peel residues based biorefinery for microbial oil and biodiesel conversion estimation," Renewable Energy, Elsevier, vol. 209(C), pages 382-392.
    2. Yano Surya Pradana & I Gusti B. N. Makertihartha & Antonius Indarto & Tirto Prakoso & Tatang Hernas Soerawidjaja, 2024. "A Review of Biodiesel Cold Flow Properties and Its Improvement Methods: Towards Sustainable Biodiesel Application," Energies, MDPI, vol. 17(18), pages 1-43, September.
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