Study of the LLE, VLE, and VLLE of the Ternary System Water + 1-Butanol + Isoamyl Alcohol at 101.3 kPa

Saquete, María Dolores; Font, Alicia; Garcia-Cano, Jorge; Blasco, Inmaculada

doi:10.1021/acs.jced.8b00308

Cited by 12 publications

(8 citation statements)

References 17 publications

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“…The samples were analyzed with the internal standard method , by a gas chromatograph (6890N, Agilent Technologies Inc.) equipped with a hydrogen flame ion detector (FID) and an Agilent DB1701 capillary column(30 m × 32 μm × 0.25 μm). N -amyl alcohol was used as an internal standard substance.…”

Section: Methodsmentioning

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: Methodsmentioning

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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“…A capillary column (Agilent DB-1701, 30 m × 32 μm × 0.25 μm) was used. The carrier gas was high-purity nitrogen, and the internal standard substance 21 was N-amyl alcohol. The temperature of the injector and detector was set at 523.15 K. The column temperature was set through temperature programming.…”

Section: Methodsmentioning

confidence: 99%

Strategy for the Separation of the Mixture of Dimethyl Carbonate, Formaldehyde, and Water

Song

Wang

Zhu³

et al. 2021

J. Chem. Eng. Data

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In this work, the separation of a mixture of dimethyl carbonate (DMC), formaldehyde, and water is studied. In our process, formaldehyde is first extracted using water as the entrainer, and then the azeotrope of DMC–water is separated by extractive distillation with ethylene glycol. To verify the feasibility of the process, the liquid–liquid equilibrium (LLE) data of the DMC–formaldehyde–water system was measured and the vapor–liquid equilibrium (VLE) data of the DMC–ethylene glycol system was also measured at 101.3 kPa. Moreover, the reliability of experimental tie-line data was checked with the Bachman, Hand, and Othmer–Tobias equations, and the thermodynamic consistency of the measured VLE data was verified by the Van Ness test and infinite dilution test. Finally, all the measured values were correlated with the nonrandom two-liquid (NRTL) model and universal quasi-chemical (UNIQUAC) model, and the binary interaction parameters were regressed.

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“…However, given the partial miscibility of the studied system, once the vapor is condensed, it splits into two liquid phases. Accordingly, aiming to obtain a representative sample of the mixture, a sample of vapor phase was taken in the vapor form as reported by Saquete et al 21 Nevertheless, in this work, the vapor sample was taken by means of a gas syringe (port 2 in Figure 2). Then, the sample was cooled to 2 °C for 10 min and prepared for gas chromatographic analysis following the procedure described in Section 2.2.1.…”

Section: Materials All Reagents Used In Experiments Are Detailed In T...mentioning

confidence: 99%

Isobaric Vapor–Liquid–Liquid Equilibrium for the 1-Propanol–Propyl Propanoate–Water Ternary System at 80.00 and 101.32 kPa

2023

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This work focuses on studying the vapor–liquid–liquid equilibrium (VLLE) of the ternary system 1-propanol–propyl propanoate–water. Experiments were carried out under isobaric conditions at 80.00 and 101.32 kPa by using a Fischer Labodest VLLE 602 equilibrium cell with an ultrasonic probe in the boiling chamber. According to results, the data sets exhibit the presence of binary and ternary heterogeneous azeotropes. Besides, aiming to obtain a unique set of thermodynamic parameters to predict the behavior of the whole system involved in the propyl propanoate synthesis (propionic acid–1-propanol-propyl propanoate–water), the phase equilibria of the quaternary system were also studied. To correlate the set of binary parameters for NRTL-HOC and UNIQUAC-HOC thermodynamic models, literature data on binary and ternary vapor–liquid equilibrium (VLE), liquid–liquid equilibrium (LLE), and VLLE data from this work were used altogether. The obtained results from correlated models depict good agreement with experiments, with average deviations lower than 1.83 K and 3.57% in temperature and molar composition, respectively. The thermodynamic consistency of experimental data was validated by means of the McDermott–Ellis method, the Wisniak method, and topological analysis. The new set of thermodynamic parameters can be used to simultaneously represent the behavior of VLE, LLE, and VLLE in the propyl propanoate production process.

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Study of the LLE, VLE, and VLLE of the Ternary System Water + 1-Butanol + Isoamyl Alcohol at 101.3 kPa

Cited by 12 publications

References 17 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

Strategy for the Separation of the Mixture of Dimethyl Carbonate, Formaldehyde, and Water

Isobaric Vapor–Liquid–Liquid Equilibrium for the 1-Propanol–Propyl Propanoate–Water Ternary System at 80.00 and 101.32 kPa

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