Isobaric vapour-liquid equilibrium data for the binary systems of polyoxymethylene dimethyl ethers with methanol, methylal and ternary system of methylal + methanol + polyoxymethylene dimethyl ethers at 50.0 kPa

Li, Shujun; Li, Xiangjun; Yang, Feiyue; Xu, Xueyang; Ye, Yuwei; Liu, Dianhua

doi:10.1016/j.jct.2021.106524

Cited by 5 publications

(6 citation statements)

References 17 publications

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“…The Redlich–Kister area test was based on the Gibbs–Duhem theorem, which can be expressed by eq : D = true| prefixtrue∫ 0 1 ln ( γ 1 / γ 2 ) d x 1 true| true∫ 0 1 | false( ln nobreak0em.25em⁡ γ 1 / γ 2 false) | d x 1 × 100 where D is calculated from the diagrams of ln(γ 1 /γ 2 ) vs x 1 . When the D value of the vapor–liquid equilibrium data is less than 2, the experimental data can be considered consistent with the thermodynamic consistency.…”

Section: Resultsmentioning

confidence: 99%

“…Isothermal VLE Data of (−)-α-Pinene (1) + (−)-β-Pinene (2) + Water (3) + Phenoxyacetic Acid (4) at 333.2 K aThe Redlich−Kister area test was based on the Gibbs− Duhem theorem, which can be expressed by eq 14:51 …”

mentioning

confidence: 99%

“…area test and the Van Ness point test were used to examine the experimental data's thermodynamic consistency.The Redlich−Kister area test was based on the Gibbs− Duhem theorem, which can be expressed by eq 14:51 …”

mentioning

confidence: 99%

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Measurement and Correlation of Isothermal Vapor–Liquid Equilibrium Data for (−)-α-Pinene + (−)-β-Pinene + Water + Phenoxyacetic Acid

Wei

Chen

Wang

et al. 2023

Ind. Eng. Chem. Res.

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Isothermal vapor–liquid equilibrium data of the binary system (−)-α-pinene + (−)-β-pinene and the quaternary system (−)-α-pinene + (−)-β-pinene + water + phenoxyacetic acid were measured at 313.2, 323.2, and 333.2 K using headspace gas chromatography. The experimental data showed that the addition of phenoxyacetic acid and water promoted the separation of (−)-α-pinene and (−)-β-pinene. The experimental data were correlated using the UNIQUAC and NRTL models. The two models showed good correlation for the binary system, whereas the UNIQUAC model gave more accuracy for the quaternary system. Moreover, the COSMO-RS model can be an efficacious method for predicting VLE data of the determined binary and quaternary systems. In addition, the optimal spatial configuration and binding energy between the molecules were obtained by DFT, and the effects on (−)-α-pinene and (−)-β-pinene with the addition of phenoxyacetic acid and water were discussed on the molecular scale.

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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Measurement and Correlation of Isothermal Vapor–Liquid Equilibrium Data for (−)-α-Pinene + (−)-β-Pinene + Water + Phenoxyacetic Acid

Wei

Chen

Wang

et al. 2023

Ind. Eng. Chem. Res.

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“…are the experimental and calculated values. The root-mean-square deviations (RMSD’s) and the mean absolute deviations (MAD’s) of the correlated temperature and vapor phase mole fractions were defined as follows − RMSD ( Δ y i ) = ∑ j = 1 N false( y j , i , calc . − y j , i , exp . false) 2 N RMSD ( Δ t ) = ∑ j = 1 N false( t j , calc . − t j , exp . false) 2 N MAD ( Δ y i ) = ∑ j = 1 N | y j , i , calc . − y j , i , exp . | N …”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Studies on Vapor–Liquid Equilibrium of Binary Systems Containing the MMA Component under Normal Atmospheric Pressure

Shi

2022

J. Chem. Eng. Data

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Methyl methacrylate (MMA) is an important monomer for plexiglass synthesis. In order to obtain high-purity MMA, the vapor−liquid equilibrium data of the system containing MMA are very important for subsequent separation. In this paper, the vapor−liquid equilibrium data of four selected binary systems, that is, methanol (1)−MMA (4), methyl propionate (2)−MMA (4), methyl propionate (2)−methyl iso-butyrate (3), and methyl iso-butyrate (3)−MMA (4), were investigated by an Ellis distillatory under 1 atmospheric pressure. The experimental data were all checked by the Herington area method, and they passed the thermodynamic consistency test, as confirmed by the statistical method. Then, these data were well correlated by the Wilson, NRTL, and UNIQUAC activity coefficient models integrated in Aspen Plus software. The regressed parameters of the activity coefficient models were obtained. The mean absolute deviations (MADs) of the vapor phase composition y 1 and equilibrium temperature t for the methanol (1)−MMA (4) binary system by the three activity coefficient models under atmospheric pressure were found to be 0.005, 0.55 °C; 0.007, 0.62 °C; and 0.005, 0.55 °C, respectively. For the other three binary systems, very similar results were obtained. An azeotropic point exists in the methanol (1)− MMA (4) binary system at a temperature of 64.60 °C and composition x 1 = 0.96 under atmospheric pressure. Further, the azeotropic point for the iso-butyrate (3)−MMA (4) binary system exists at 92.39 °C and x 3 = 0.925 under 1 atmospheric pressure.

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Vapor-Liquid Phase Equilibrium in Ternary Mixtures of Methanol

Behbahani

2024

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering

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Isobaric vapour-liquid equilibrium data for the binary systems of polyoxymethylene dimethyl ethers with methanol, methylal and ternary system of methylal + methanol + polyoxymethylene dimethyl ethers at 50.0 kPa

Cited by 5 publications

References 17 publications

Measurement and Correlation of Isothermal Vapor–Liquid Equilibrium Data for (−)-α-Pinene + (−)-β-Pinene + Water + Phenoxyacetic Acid

Measurement and Correlation of Isothermal Vapor–Liquid Equilibrium Data for (−)-α-Pinene + (−)-β-Pinene + Water + Phenoxyacetic Acid

Studies on Vapor–Liquid Equilibrium of Binary Systems Containing the MMA Component under Normal Atmospheric Pressure

Vapor-Liquid Phase Equilibrium in Ternary Mixtures of Methanol

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