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Volume 87
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10.3390/engproc2025087014
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Proceeding Paper

Green Upgrading of Biodiesel Derived from Biomass Wastes †

by
Elissavet Emmanouilidou
1,2,
Alexandros Psalidas
1,
Anastasia Lazaridou
1,2,
Sophia Mitkidou
1,2 and
Nikolaos C. Kokkinos
1,2,3,*
1
Department of Chemistry, School of Sciences, Democritus University of Thrace, Ag. Loukas, 654 04 Kavala, Greece
2
Petroleum Institute, Democritus University of Thrace, Ag. Loukas, 654 04 Kavala, Greece
3
Hephaestus Laboratory, School of Sciences, Democritus University of Thrace, Ag. Loukas, 654 04 Kavala, Greece
*
Author to whom correspondence should be addressed.
†
Presented at the 5th International Electronic Conference on Applied Sciences, 4–6 December 2024; Available online: https://sciforum.net/event/ASEC2024.
Eng. Proc. 2025, 87(1), 14; https://doi.org/10.3390/engproc2025087014
Published: 10 March 2025
(This article belongs to the Proceedings of The 5th International Electronic Conference on Applied Sciences)
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Abstract

The rising demand for edible oils underscores the potential of non-edible oils for biodiesel production. However, biodiesel’s low oxidative stability (OS) and poor cold flow properties due to high unsaturation levels limit its use. This study aims to improve OS through the partial hydrogenation of polyunsaturated FAMEs using a Ru-TPPTS biphasic catalytic system. GC-MS analysis showed that the pre-hydrogenated biodiesel contained over 85% of unsaturated FAMEs, mainly linoleic (C18:2) and oleic acid (C18:1). Hydrogenation reduced C18:2 FAME content by over 70% while increasing stearic acid level (C18:0 FAME), significantly enhancing OS by more than 135%. Further optimization is needed to meet the required quality and performance standards.
Keywords: biodiesel; upgrade; hydrogenation; biphasic catalysis; biomass; waste cooking oil biodiesel; upgrade; hydrogenation; biphasic catalysis; biomass; waste cooking oil

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MDPI and ACS Style

Emmanouilidou, E.; Psalidas, A.; Lazaridou, A.; Mitkidou, S.; Kokkinos, N.C. Green Upgrading of Biodiesel Derived from Biomass Wastes. Eng. Proc. 2025, 87, 14. https://doi.org/10.3390/engproc2025087014

AMA Style

Emmanouilidou E, Psalidas A, Lazaridou A, Mitkidou S, Kokkinos NC. Green Upgrading of Biodiesel Derived from Biomass Wastes. Engineering Proceedings. 2025; 87(1):14. https://doi.org/10.3390/engproc2025087014

Chicago/Turabian Style

Emmanouilidou, Elissavet, Alexandros Psalidas, Anastasia Lazaridou, Sophia Mitkidou, and Nikolaos C. Kokkinos. 2025. "Green Upgrading of Biodiesel Derived from Biomass Wastes" Engineering Proceedings 87, no. 1: 14. https://doi.org/10.3390/engproc2025087014

APA Style

Emmanouilidou, E., Psalidas, A., Lazaridou, A., Mitkidou, S., & Kokkinos, N. C. (2025). Green Upgrading of Biodiesel Derived from Biomass Wastes. Engineering Proceedings, 87(1), 14. https://doi.org/10.3390/engproc2025087014

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