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Thermal Hydraulics and Thermochemical Design of Fatty Acid Methyl Ester (Biodiesel) Esterification Reactor by Heating with High Boiling Point Phenyl-Naphthalene Liquid

Tomer Ltd., Tel-Aviv 6473424, Israel
Academic Editor: Marta María Mato Corzón
Fluids 2022, 7(3), 93; https://doi.org/10.3390/fluids7030093
Received: 8 January 2022 / Revised: 26 February 2022 / Accepted: 2 March 2022 / Published: 4 March 2022
(This article belongs to the Special Issue Thermodynamic Properties of Liquid Mixtures)
FAME (biodiesel) is an alternative fuel that can be produced from vegetable oils. There is growing interest in the research and development of renewable energy sources. A possible solution is a biofuel usable in compression-ignition engines (diesel engines) produced from biomass rich in fats and oils. This paper contains a new and safer design of an esterification reactor for producing FAME (biodiesel) by utilizing high boiling point fluid (called phenyl-naphthalene). CFD simulation of biodiesel production by using methyl imidazolium hydrogen sulfate ionic liquid has been carried out. Ionic liquids (ILs) are composed of anions and cations that exist as liquids at relatively low temperatures. They have many advantages, such as chemical and thermal stability, low flammability, and low vapor pressures. In this work, the ionic liquids have been applied in organic reactions as solvents and catalysts of the esterification reaction. The great qualities of high boiling temperature fluids, along with advances in the oil and gas industries, make the organic concept more suitable and safer (water coming into contact with liquid metal may cause a steam explosion hazard) for heating the esterification reactor. The COMSOL Multiphysics code has been employed and simultaneously solves the continuity, fluid flow, heat transfer, and diffusion with chemical reaction kinetics equations. It was shown that the heat flux could provide the necessary heat flux required for maintaining the esterification process. It was found that the mass fractions of methanol and oleic acid decrease along the reactor axis. The FAME mass fraction increased along the reactor axis. The maximal biodiesel yield obtained in the esterification reactor was 86%. This value is very similar to the experimental results obtained by Elsheikh et al. View Full-Text
Keywords: biofuel; biodiesel production; CFD; methyl imidazolium hydrogen sulfate; ionic liquid; COMSOL Multiphysics; energy equation; diffusion equation with chemical reaction; high boiling fluid; phenyl-naphthalene biofuel; biodiesel production; CFD; methyl imidazolium hydrogen sulfate; ionic liquid; COMSOL Multiphysics; energy equation; diffusion equation with chemical reaction; high boiling fluid; phenyl-naphthalene
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MDPI and ACS Style

Davidy, A. Thermal Hydraulics and Thermochemical Design of Fatty Acid Methyl Ester (Biodiesel) Esterification Reactor by Heating with High Boiling Point Phenyl-Naphthalene Liquid. Fluids 2022, 7, 93. https://doi.org/10.3390/fluids7030093

AMA Style

Davidy A. Thermal Hydraulics and Thermochemical Design of Fatty Acid Methyl Ester (Biodiesel) Esterification Reactor by Heating with High Boiling Point Phenyl-Naphthalene Liquid. Fluids. 2022; 7(3):93. https://doi.org/10.3390/fluids7030093

Chicago/Turabian Style

Davidy, Alon. 2022. "Thermal Hydraulics and Thermochemical Design of Fatty Acid Methyl Ester (Biodiesel) Esterification Reactor by Heating with High Boiling Point Phenyl-Naphthalene Liquid" Fluids 7, no. 3: 93. https://doi.org/10.3390/fluids7030093

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