Liquid–Liquid Equilibrium for the Ternary Systems Water + 1-Butanol + 1-Hexanol or 1-Octanol at 303.15, 313.15, and 323.15 K

Zhang, Lili; Yu, Yingmin; Liao, Zonghu; Xu, Xiaosheng; Huang, Xingliang; Jia, Bing; Li, Qingsong

doi:10.1021/acs.jced.9b00479

Cited by 12 publications

(2 citation statements)

References 32 publications

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“…The specific information about uncertainty is provided in the Supporting Information. Generally, the UNIQUAC model and NRTL model are used to regress the LLE data to obtain the binary interaction parameters. − After comparison, it was found that the UNIQUAC model had higher accuracy of regression, so in this article, the UNIQUAC model was used to regress the LLE data to acquire the binary interaction parameters. The activity coefficient in the UNIQUAC model is expressed as follows θ i and φ i represent the volume fraction and surface area fraction, respectively.…”

Section: Methodsmentioning

confidence: 99%

Liquid–Liquid Equilibrium Data and Process Simulation for Separating the Mixture of Decanol + Undecanol + Tetradecane + Pentadecane

et al. 2020

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In this article, Aspen Plus was used to simulate a process for separating the mixture of decanol + undecanol + tetradecane + pentadecane to obtain decanol + undecanol product and tetradecane + pentadecane product. Aqueous ethanol solution and octadecane were chosen as potential extractants. First, the liquid−liquid equilibrium (LLE) data of the four quaternary systems {ethanol (1) + decanol (2) + tetradecane (4) + water (6), and ethanol (1) + decanol (2) + pentadecane (5) + water (6), ethanol (1) + undecanol (3) + tetradecane (4) + water (6), ethanol (1) + undecanol (3) + pentadecane (5) + water (6)} and the six-component system {ethanol (1) + decanol (2) + undecanol (3) + tetradecane (4) + pentadecane (5) + water (6)} were obtained at 293.15, 298.15, and 303.15 K under atmospheric pressure. The UNIQUAC model was used to regress the LLE data of the four quaternary systems to obtain the binary interaction parameters, which were used to predict the LLE data of the six-component system. The results showed that the predicted and experimental data were in great agreement. Second, the LLE data of the sevencomponent system {ethanol (1) + decanol (2) + undecanol (3) + tetradecane (4) + pentadecane (5) + water (6) + octadecane (7)} were obtained at 303.15, 308.15, and 313.15 K under atmospheric pressure, and the binary interaction parameters involving the component octadecane were obtained by data regression using the UNIQUAC model. Finally, a 2500t/a process of separating the mixture of decanol + undecanol + tetradecane + pentadecane was simulated in Aspen Plus with these regressed binary interaction parameters. On optimization, 99.80 wt % decanol + undecanol product and 99.76 wt % tetradecane + pentadecane product were obtained.

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Section: Methodsmentioning

confidence: 99%

Liquid–Liquid Equilibrium Data and Process Simulation for Separating the Mixture of Decanol + Undecanol + Tetradecane + Pentadecane

et al. 2020

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“…Some similar systems have been studied. The liquid–liquid equilibrium (LLE) for the system water + ethanol + hexanol + decane, water + ethanol + octanol, water + n -butanol + hexanol, water + n -butanol + octanol, water+1-butanol+2-butanol, and n -amyl alcohol + water + acetic acid was studied at different temperatures. Non-random two-liquid (NRTL) and UNIQUAC models were used to correlate the LLE data.…”

Section: Introductionmentioning

confidence: 99%

Measurement and Correlation of the Liquid–Liquid Equilibrium for the Quaternary System N-Butanol + N-Pentanol + N-Hexanol + Water at 313.15, 323.15, and 333.15 K

Zhang

et al. 2022

J. Chem. Eng. Data

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For some strongly non-ideal solution systems, there are often errors in predicting the phase equilibrium relationship of a multi-component system using the interaction parameters obtained by the regression of the phase equilibrium data of the binary system. The interaction parameters between the components obtained by directly determining the phase equilibrium of the multivariate system will bring the calculated values closer to the experimental values. Liquid–liquid equilibrium (LLE) data were determined for the system of n-butanol + n-pentanol + n-hexanol + water at 313.15, 323.15, and 333.15K under atmospheric pressure. LLE compositions were determined by gas chromatography. LLE data were correlated by the UNIQUAC model and the non-random two-liquid (NRTL) model. Both models were appropriate for describing the LLE of this quaternary equilibrium system. They provided accurate thermodynamic parameters for the phase equilibrium of C4–6 mixed alcohols in Fischer–Tropsch synthesis water.

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Liquid–Liquid Equilibrium for the Ternary System of Water, Methyl Acrylate, and Different Solvents at 303.2 K under 101.3 kPa

Li,

Jiang,

Yan

et al. 2024

J Solution Chem

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Liquid–Liquid Equilibrium for the Ternary Systems Water + 1-Butanol + 1-Hexanol or 1-Octanol at 303.15, 313.15, and 323.15 K

Cited by 12 publications

References 32 publications

Liquid–Liquid Equilibrium Data and Process Simulation for Separating the Mixture of Decanol + Undecanol + Tetradecane + Pentadecane

Liquid–Liquid Equilibrium Data and Process Simulation for Separating the Mixture of Decanol + Undecanol + Tetradecane + Pentadecane

Measurement and Correlation of the Liquid–Liquid Equilibrium for the Quaternary System N-Butanol + N-Pentanol + N-Hexanol + Water at 313.15, 323.15, and 333.15 K

Liquid–Liquid Equilibrium for the Ternary System of Water, Methyl Acrylate, and Different Solvents at 303.2 K under 101.3 kPa

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