Separation of Dimethyl Carbonate and Methanol by Deep Eutectic Solvents: Liquid–Liquid Equilibrium Measurements and Thermodynamic Modeling

Liu, Xiaowei; Xu, Donghai; Diao, Baotao; Gao, Jun; Zhang, Lianzheng; Ma, Yixin; Wang, Yinglong

doi:10.1021/acs.jced.7b00858

Cited by 35 publications

(21 citation statements)

References 21 publications

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“…Dimethyl carbonate (DMC) is an important environmentally friendly chemical product, − which is widely used as a fuel additive, , solvent, and organic chemical intermediate , due to its excellent performance.…”

Section: Introductionmentioning

confidence: 99%

Isobaric Vapor–Liquid Equilibrium Measurements of Binary Systems of Dimethyl Carbonate with Dimethyl Sulfoxide, Anisole, and Diethyl Oxalate at 101.3 kPa

et al. 2021

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In this work, three entrainers were selected to separate the azeotrope of dimethyl carbonate (DMC) and methanol, which were dimethyl sulfoxide, anisole, and diethyl oxalate. The vapor–liquid equilibrium (VLE) data of four binary systems (DMC + dimethyl sulfoxide, DMC + anisole, DMC + diethyl oxalate, and methanol + diethyl oxalate) were measured using a modified Rose-type circulating still at 101.3 kPa. The Van Ness point-to-point test and infinite dilution test were used to test the thermodynamic consistency of the experimental VLE data. The nonrandom two-liquid, universal quasi-chemical, and Wilson models were used to correlate the measured VLE data. The binary interaction parameters of the three models were regressed.

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Section: Introductionmentioning

confidence: 99%

Isobaric Vapor–Liquid Equilibrium Measurements of Binary Systems of Dimethyl Carbonate with Dimethyl Sulfoxide, Anisole, and Diethyl Oxalate at 101.3 kPa

et al. 2021

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“…According to the literature (Liu et al 2018a, b;Ribeiro et al 2015;Florindo et al 2017), all the deep eutectic solvents used in this work were prepared from methyl trioctyl ammonium chloride and 1-hexanol (DES1), and methyl trioctyl ammonium chloride and 1-decanol (DES2) with the mole ratio of 1:2. First, the components methyl trioctyl ammonium chloride, 1-hexanol and 1-decanol weighed using an electronic balance, were discharged into a flask.…”

Section: Preparation Of Dessmentioning

confidence: 99%

“…Recently, deep eutectic solvents (DESs) have emerged as green solvents for separating azeotropes (Liu et al 2018a;Verma and Banerjee 2018). DESs consist of two or more compounds including hydrogen bond donors (HBDs) and hydrogen bond acceptors (HBAs).…”

Section: Introductionmentioning

confidence: 99%

Separation of isopropanol from its aqueous solution with deep eutectic solvents: liquid–liquid equilibrium measurement and thermodynamic modeling

Meng

Liu

et al. 2020

Braz. J. Chem. Eng.

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In this work, to separate the azeotrope of isopropanol and water using liquid-liquid extraction, two deep eutectic solvents (DESs) were prepared with methyl trioctyl ammonium chloride and (1-hexanol/1-decanol), which were characterized by 1 H NMR and were adopted as extractants. The liquid-liquid equilibrium data for the mixtures (DESs + isopropanol + water) were determined at 298.15 K and 308.15 K. The distribution ratio (D) and separation factor (S) were obtained to judge the extraction performance for the selected DESs. The calculated values of D and S showed that the separation of the mixture isopropanol and water by the DESs is feasible. In addition, the experimental data were successfully fitted by the NRTL model with the RMSD values less than 0.0080. The parameters of the NRTL model were optimized, which is helpful for the separation design and simulation.

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“…The obtained experimental tie-line data were tested for reliability using the Hand [53] (Equation (4)) and Bachman [54] (Equation ( 5)) correlations. These correlations are commonly used for consistency of phase equilibrium data [55][56][57]. The equations are obtained by:…”

Section: Reliability Of Tie-line Datamentioning

confidence: 99%

The Potential of Non-Ionic Surfactants for Extraction of Lactic Acid from Aqueous Solution

et al. 2020

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Lactic acid, an important commodity chemical for various applications, is mainly produced through fermentation. In this study, the potential of non-ionic surfactants (an alcohol ethoxylate (AE) and two alcohol alkoxylates (AAs)) as solvents for the extraction of lactic acid from aqueous solutions is reported for the first time. Ternary mixtures containing lactic acid, water, and surfactants were prepared for the assessment. The results indicated that for all the systems, the water–surfactant binary pair exhibits partial immiscibility. Furthermore, the results suggested that with respect to the size of the two-phase region and stability of phases developed, the AE is the suitable solvent for the targeted extraction process. Thus, tie-lines for the system lactic acid + water + AE were then determined to establish the phase diagram of the system at 308.15 K. From the tie-lines, distribution coefficients and separation factors were estimated, which indicated that a compromise between the size and number of extraction units is necessary if AE is to be used as a solvent for lactic acid extraction. The extraction efficiency was estimated to be only about 37–48%. Nevertheless, the biodegradability and non-toxicity of AE makes it a viable solvent for the development of the extractive lactic acid fermentation process.

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Separation of Dimethyl Carbonate and Methanol by Deep Eutectic Solvents: Liquid–Liquid Equilibrium Measurements and Thermodynamic Modeling

Cited by 35 publications

References 21 publications

Isobaric Vapor–Liquid Equilibrium Measurements of Binary Systems of Dimethyl Carbonate with Dimethyl Sulfoxide, Anisole, and Diethyl Oxalate at 101.3 kPa

Isobaric Vapor–Liquid Equilibrium Measurements of Binary Systems of Dimethyl Carbonate with Dimethyl Sulfoxide, Anisole, and Diethyl Oxalate at 101.3 kPa

Separation of isopropanol from its aqueous solution with deep eutectic solvents: liquid–liquid equilibrium measurement and thermodynamic modeling

The Potential of Non-Ionic Surfactants for Extraction of Lactic Acid from Aqueous Solution

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