Department of Applied Chemistry, Faculty of Chemistry and Petroleum Sciences, Bu-Ali Sina University, Hamedan, Iran
10.24200/sci.2025.66278.9955
Abstract
Hydrophobic deep eutectic solvents (HDESs), due to many advances, have found profound applications in many fields including the extraction process. This study delves into the drops behavior of a green HDES, synthesized from dodecanoic acid and octanoic acid precursors (1:3 molar ratio) in separation of phenol from aqueous phase. The solvent has the desired properties of low interfacial tension with water and low viscosity. Based on various relevant criteria, the generated drops in a pilot column were in circulating mode and the terminal velocities were close to the Klee-Treybal model. In mass transfer study, as the key factor in evaluating the HDES performance, extraction fractions were found within (0.13−0.19) and the overall mass transfer coefficient within (12.48−24.09) μm/s, comparable with imidazolium-based ionic liquids as alternatives of DESs. For the aim of modelling, the mass transfer coefficient data were precisely reproduced according to the modified Newman’s equation, taking into account the local continuous phase mass transfer resistance and an effective molecular diffusivity. A maximum deviation of 9.3% was relevant to the experimental data compared with the model predicted values. The results highlight industrial scale application of HDESs for extracting pollutants.
Saien, J. and Bahiraei, M. (2025). Hydrodynamic and mass transfer performance of a hydrophobic deep eutectic solvent in extracting phenol from aqueous phase. Scientia Iranica, (), -. doi: 10.24200/sci.2025.66278.9955
MLA
Saien, J. , and Bahiraei, M. . "Hydrodynamic and mass transfer performance of a hydrophobic deep eutectic solvent in extracting phenol from aqueous phase", Scientia Iranica, , , 2025, -. doi: 10.24200/sci.2025.66278.9955
HARVARD
Saien, J., Bahiraei, M. (2025). 'Hydrodynamic and mass transfer performance of a hydrophobic deep eutectic solvent in extracting phenol from aqueous phase', Scientia Iranica, (), pp. -. doi: 10.24200/sci.2025.66278.9955
CHICAGO
J. Saien and M. Bahiraei, "Hydrodynamic and mass transfer performance of a hydrophobic deep eutectic solvent in extracting phenol from aqueous phase," Scientia Iranica, (2025): -, doi: 10.24200/sci.2025.66278.9955
VANCOUVER
Saien, J., Bahiraei, M. Hydrodynamic and mass transfer performance of a hydrophobic deep eutectic solvent in extracting phenol from aqueous phase. Scientia Iranica, 2025; (): -. doi: 10.24200/sci.2025.66278.9955
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