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Aspects Regarding the Modelling and Optimization of the Transesterification Process through Temperature Control of the Chemical Reactor

Author

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  • Ruxandra-Cristina Stanescu

    (Department of Automotive and Transport Engineering, Transilvania University of Brasov, 500036 Brasov, Romania)

  • Cristian-Ioan Leahu

    (Department of Automotive and Transport Engineering, Transilvania University of Brasov, 500036 Brasov, Romania)

  • Adrian Soica

    (Department of Automotive and Transport Engineering, Transilvania University of Brasov, 500036 Brasov, Romania)

Abstract

Currently, biofuels represent a solution for the European Union in the transportation sector in order to reduce the greenhouse gas (GHG) emissions and the dependency of fossil fuels. Biodiesel from vegetable oils is a solution for countries with low GDP per capita to strengthen the internal agriculture, provide jobs, and reduce the use of fossil fuels. In this study, we model and simulate a temperature regulator designed for the biodiesel transesterification process in a discontinuous batch reactor, using methanol and a homogenous basic catalyst. The simulation was based on the kinetical model of the transesterification reaction and the mathematical model of the reactor. We considered molar ratios of alcohol/oil of 6:1 and 9:1, respectively, to shift the reaction equilibrium towards the production of fatty acid methyl esters. In the design of the simulation, the methanol boiling point was considered a restriction, therefore, temperatures below 65 °C were imposed. The results demonstrate that the increase in temperature results in a decrease in the reaction time and a higher yield, especially for the 6:1 molar ratio reaction, and that the optimum temperature for the batch reactor is of 60 °C. Automatic control improves the performance and costs of production.

Suggested Citation

  • Ruxandra-Cristina Stanescu & Cristian-Ioan Leahu & Adrian Soica, 2023. "Aspects Regarding the Modelling and Optimization of the Transesterification Process through Temperature Control of the Chemical Reactor," Energies, MDPI, vol. 16(6), pages 1-17, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:6:p:2883-:d:1102786
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    References listed on IDEAS

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    1. Małgorzata Hawrot-Paw & Patryk Ratomski & Adam Koniuszy & Wojciech Golimowski & Mirosława Teleszko & Anna Grygier, 2021. "Fatty Acid Profile of Microalgal Oils as a Criterion for Selection of the Best Feedstock for Biodiesel Production," Energies, MDPI, vol. 14(21), pages 1-14, November.
    2. Leung, Dennis Y.C. & Wu, Xuan & Leung, M.K.H., 2010. "A review on biodiesel production using catalyzed transesterification," Applied Energy, Elsevier, vol. 87(4), pages 1083-1095, April.
    3. Łukasz Muślewski & Marietta Markiewicz & Michał Pająk & Tomasz Kałaczyński & Davor Kolar, 2021. "Analysis of the Use of Fatty Acid Methyl Esters as an Additive to Diesel Fuel for Internal Combustion Engines," Energies, MDPI, vol. 14(21), pages 1-17, October.
    4. Emilia Neag & Zamfira Stupar & S. Andrada Maicaneanu & Cecilia Roman, 2023. "Advances in Biodiesel Production from Microalgae," Energies, MDPI, vol. 16(3), pages 1-18, January.
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    1. Mario C. Maya-Rodriguez & Ignacio Carvajal-Mariscal & Raúl López-Muñoz & Mario A. Lopez-Pacheco & René Tolentino-Eslava, 2023. "Temperature Control of a Chemical Reactor Based on Neuro-Fuzzy Tuned with a Metaheuristic Technique to Improve Biodiesel Production," Energies, MDPI, vol. 16(17), pages 1-17, August.

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