Separation of methanol and ethanol from azeotropic MTBE mixtures using choline chloride-based deep eutectic solvents

Esfahani, Hamed Sedaghatzadegan; Khoshsima, Ali; Pazuki, Gholamreza; Hosseini, Alireza

doi:10.1016/j.molliq.2023.121641

Cited by 5 publications

(1 citation statement)

References 64 publications

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“…Solvent screening is the most significant and efficient factor affecting the extraction procedure in manufacturing utilization . The principal characteristics of appropriate extractants (extracting agents) include nonflammability, low volatility, high solute selectivity, short extraction time, cost-effectiveness, environmental friendliness, availability, and easy separability. , Deep eutectic solvents (DESs), a subgroup of low-transition-temperature-mixtures (LTTMs), have received awareness as potential eco-friendly replacement solvents for volatile organic compounds. Most deep eutectic solvents are nontoxic, biocompatible, and biodegradable .…”

Section: Introductionmentioning

confidence: 99%

Liquid−Liquid Equilibrium Data for 1-Butanol–Methylcyclohexane and Acetonitrile–Benzene Mixtures Using Multiple Deep Eutectic Solvents Based on Choline Chloride

Tarighati,

Naderifar,

Pazuki

2024

J. Chem. Eng. Data

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Choline chloride (ChCl)-based deep eutectic solvents (DESs) have been utilized as a green extracting agent for the efficient extraction of 1-butanol from methylcyclohexane + butanol combinations and acetonitrile from benzene + acetonitrile mixture at atmospheric pressure and 298.15 K. The prepared DESs were ChCl + urea (DES1; 1:2 molar ratio), ChCl + 1,2-propanediol (DES2; 1:3 molar ratio), ChCl + ethylene glycol (DES3; 1:2 molar ratio), and ChCl + glycerol (DES4; 1:2 molar ratio). The Hand and Othmer−Tobias equations were used to evaluate the tie-line compositions' reliability. The extrication abilities of the examined DESs to separate methylcyclohexane +1-butanol and benzene + acetonitrile mixtures were compared to the NRTL model. The binary interaction parameters were established when the NRTL model corroborated the measured equilibrium data. The Gibbs topological analysis was utilized to validate consistency of the model parameters. The extraction equilibrium data showed that the selectivity parameter was higher than unity (S > 1) in all the evaluated systems. The distribution coefficient factor in systems containing ChCl−urea was higher than unity, indicating the need for smaller amounts of solvents to separate 1-butanol from methylcyclohexane, and the number of extraction steps was reduced. The distribution coefficient factor was less than unity in all systems, and more DESs were needed for optimal separation of acetonitrile from benzene.

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Section: Introductionmentioning

confidence: 99%

Liquid−Liquid Equilibrium Data for 1-Butanol–Methylcyclohexane and Acetonitrile–Benzene Mixtures Using Multiple Deep Eutectic Solvents Based on Choline Chloride

Tarighati,

Naderifar,

Pazuki

2024

J. Chem. Eng. Data

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Diphenyl selenoxide: Unraveled peculiarities in methanol and acetonitrile solutions

Chaban,

Markarian,

Ghazoyan

et al. 2024

Journal of Molecular Liquids

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Liquid–Liquid Equilibrium Measurement and Thermodynamic Modeling for Ternary Mixtures (Methyl tert-Butyl Ether + Methanol + Ethylene Glycol/Ethanolamine/Diethanolamine) at 298.15 K

Gao,

Li,

Zhang

et al. 2024

J. Chem. Eng. Data

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Methyl tert-butyl ether (MTBE) is a colorless and transparent liquid that exhibits excellent miscibility with gasoline. It is employed extensively in gasoline formulations due to its efficacy in augmenting the octane number. Additionally, highpurity MTBE can be applied as a pharmaceutical intermediate. For the purification of MTBE during its production, it can form an azeotrope with methanol. In this work, to purify MTBE from the azeotrope via extraction, the efficacy of three organic solvents ethylene glycol, ethanolamine, and diethanolamine as potential extractants was assessed. The liquid−liquid equilibrium data of the ternary systems (methanol + MTBE + ethylene glycol/ethanolamine/diethanolamine) were ascertained at 298.15 K. The effectiveness of the extracting agents was evaluated with the calculated selectivity and the distribution coefficient. The findings demonstrated that ethanolamine displays a superior extraction capacity for extracting methanol. The ascertained data were correlated by applying the NRTL model, achieving the root-meansquare deviation values that did not exceed 0.01. The reliability of the model's optimal parameters was verified by topological analysis, confirming its coherence with the experimental data.

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Separation of methanol and ethanol from azeotropic MTBE mixtures using choline chloride-based deep eutectic solvents

Cited by 5 publications

References 64 publications

Liquid−Liquid Equilibrium Data for 1-Butanol–Methylcyclohexane and Acetonitrile–Benzene Mixtures Using Multiple Deep Eutectic Solvents Based on Choline Chloride

Liquid−Liquid Equilibrium Data for 1-Butanol–Methylcyclohexane and Acetonitrile–Benzene Mixtures Using Multiple Deep Eutectic Solvents Based on Choline Chloride

Diphenyl selenoxide: Unraveled peculiarities in methanol and acetonitrile solutions

Liquid–Liquid Equilibrium Measurement and Thermodynamic Modeling for Ternary Mixtures (Methyl tert-Butyl Ether + Methanol + Ethylene Glycol/Ethanolamine/Diethanolamine) at 298.15 K

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