Experiments and thermodynamic models for ternary liquid–liquid equilibrium systems of water + tetrahydrofurfuryl alcohol + solvents at different temperatures

Han, Mai; Lin, Song; Xu, Mingyi; Jiang, Yueyang; Yin, Qingqing; Pang, Yufan; Song, Yujian; Li, Qingsong

doi:10.1016/j.jct.2021.106709

Cited by 6 publications

(6 citation statements)

References 33 publications

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“…The binary interaction parameter was calculated during the fitting process. The model structure parameters ( r and q ) of the reagents involved in the experiment are from Aspen Plus 8.4, and the values are displayed in Table . The OF is expressed in the equation below where w cal and w exp represent the material composition obtained by calculation and experiment, respectively, j refers to the phase, k stands for the connecting line, i directs the components, and M stands for connecting the lines’ number.…”

Section: Results and Discussionmentioning

confidence: 99%

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Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

et al. 2022

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For the separation of 2,2,2-trifluoroethanol in water, two alcohols and two ketones were chosen as extractants for experiments at 101.3 kPa and 298.2 K. The liquid−liquid equilibrium data for water + 2,2,2-trifluoroethanol + (4-methyl-2-pentanol, methyl isobutyl ketone, methyl isopropyl ketone, and benzyl alcohol) were measured under these conditions. The separation effects of the four solvents were assessed by the distribution coefficient (D) and the separation factor (S). Meantime, the interaction parameters were obtained by fitting the experimental data using NRTL and UNIQUAC models, and both values of AAD and rmsd were less than 0.43%. The GUI-MATLAB series of topological analysis tools were used to check the accuracy of the measured values with the binary interaction parameters.

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Section: Results and Discussionmentioning

confidence: 99%

Section: Thermodynamic Modelingmentioning

confidence: 99%

Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

et al. 2022

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“…The operation methods and instruments in the LLE process have been introduced in the previous work. ,, The whole process of liquid–liquid extraction (water + MAA + alcohol solvents) is stable at 303.2 K and 101.3 kPa. The components of the experimental instrument are shown in Figure .…”

Section: Experiments Of Llementioning

confidence: 99%

Liquid–Liquid Equilibrium for Ternary Systems of Water, Methacrylic Acid, and Alkyl Alcohols: Thermodynamic Analysis and Solvent Comparison

Han,

Zhen,

Zhang

et al. 2024

J. Chem. Eng. Data

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The development and research of biomass fuels have been paid more and more attention. The production of methacrylic acid is accompanied by a large amount of water and environmental pollution. Therefore, the separation of methacrylic acid from aqueous solution is of great significance for industrial production and environmental protection. The liquid−liquid equilibrium (LLE) for ternary systems of water + methacrylic acid + alcohol solvents at 303.2 K and 101.3 kPa was investigated. Thermodynamic models (NRTL and UNIQUAC) were used to correlate and regress the experimental data. The root-mean-square deviation (RMSD %) was used to evaluate the deviation between the experimental value and the calculated value, which were 1 and 1, respectively, indicating that the extractants selected in the experiment could well separate methacrylic acid from the aqueous solution, and 1-octanol exhibits better extraction performance. The correlation of LLE data is proven by MATLAB. In addition, the binary interactive parameters of the model regression are verified by MATLAB.

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“…Therefore, we need to find a separation method that is both efficient and economical while protecting the environment as soon as possible. Liquid–liquid extraction has many advantages such as convenient automatic control, continuous operation, high recovery rate, good separation effect, and large treatment capacity . It is widely applied to the separation of near-boiling or azeotropic systems.…”

Section: Introductionmentioning

confidence: 99%

“…Liquid−liquid extraction has many advantages such as convenient automatic control, continuous operation, high recovery rate, good separation effect, and large treatment capacity. 5 It is widely applied to the separation of near-boiling or azeotropic systems. Therefore, credible liquid−liquid equilibrium (LLE) data are the key to designing and simulating the extraction process and also lay the foundation for subsequent industrial optimization and amplification.…”

Section: Introductionmentioning

confidence: 99%

Liquid–Liquid Equilibrium Measurement and Thermodynamic Modeling for Ternary Systems of 2-Ethyl-1-hexanol + 1,2-Propanediol + (Water and n-Heptane) at Different Temperatures

Wei

Zhao

et al. 2023

J. Chem. Eng. Data

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To recover 2-ethyl-1-hexanol and 1,2-propanediol from waste polyester alcoholysis products, liquid−liquid equilibrium (LLE) data for the ternary system of 2ethyl-1-hexanol + 1,2-propanediol + (water, n-heptane) at different temperatures (303.2, 313.2, and 323.2 K) were studied at 101.3 kPa. The distribution coefficient (D) and selectivity coefficient (S) were used as indicators to assess the separation effect. The NRTL and UNIQUAC models were used to correlate the experimental data and the root mean square deviation (RMSD) values were calculated to be less than 0.75 and 0.97%, respectively. Finally, the consistency between the experimental data and the regression parameters was verified using the GUI-MATLAB tool. σ-Profiles are used to discuss the interactions of substances in this work. It was found that both extractants could separate and extract 2-ethyl-1-hexanol and 1,2-propanediol effectively, with water being more effective.

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Experiments and thermodynamic models for ternary liquid–liquid equilibrium systems of water + tetrahydrofurfuryl alcohol + solvents at different temperatures

Cited by 6 publications

References 33 publications

Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

Experimental Study and Thermodynamic Modeling of Ternary Liquid–Liquid Equilibrium of Water + 2,2,2-Trifluoroethanol + Four Solvents at 298.2 K

Liquid–Liquid Equilibrium for Ternary Systems of Water, Methacrylic Acid, and Alkyl Alcohols: Thermodynamic Analysis and Solvent Comparison

Liquid–Liquid Equilibrium Measurement and Thermodynamic Modeling for Ternary Systems of 2-Ethyl-1-hexanol + 1,2-Propanediol + (Water and n-Heptane) at Different Temperatures

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