PρT measurements and modelling of (n-decane + m-xylene) mixtures from 293.15 K to 363.15 K at pressures up to 60 MPa

Kang, Kai; Kontogeorgis, Georgios M.; Wang, Xiaopo

doi:10.1016/j.jct.2019.03.025

Cited by 5 publications

(2 citation statements)

References 36 publications

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“…At a specific temperature and pressure, the oscillation period of the U -tube (located in the DMA-HPM measuring cell) filled with the sample of MC8 solvents should be recorded. Detailed descriptions about the experimental system can be found in our previous studies. − …”

Section: Methodsmentioning

confidence: 99%

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

Wang

2023

J. Chem. Eng. Data

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Due to the hydrophobicity, the eutectic solvents (ESs) composed of DL-menthol and octanoic acid have been considered as a kind of promising extraction solution. The thermophysical properties of the ESs are necessary for their wide applications. In this work, the high-pressure liquid densities of DLmenthol/octanoic acid ESs at five molar ratios (1:1, 1:2, 2:1, 1:3, and 3:1) were studied based on the vibrating method. The measurements were carried out from 293.15 to 363.15 K and at pressures up to 70 MPa. The effects of temperature, pressure, and molar ratios on the density of the DL-menthol/octanoic acid ESs were analyzed. In addition, the experimental results were fitted by the Tait-type equation; the maximum deviation for the studied five solvents between experimental data and values from the Tait equation was less than 0.010%. The derived properties including isobaric thermal expansivity, isothermal compressibility, and internal pressure were calculated, and the effects of the temperature, pressure, and molar ratios on the derived properties were discussed.

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Section: Methodsmentioning

confidence: 99%

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

Wang

2023

J. Chem. Eng. Data

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“…Predictions of density as a function of temperature at 1 bar using PC-SAFT for (a) binary and (b) ternary/quinary mixtures treated as lumped solvents parametrized by Assareh et al correlations. Markers represent experimental data. ,, Solid lines represent PC-SAFT predictions.…”

Section: Modeling Of High-pressure and High-temperature Volumetric Pr...mentioning

confidence: 99%

PC-SAFT Parameter Correlations from Simple Measurements at Ambient Conditions for Predictive Modeling of Nonpolar Hydrocarbons

Abutaqiya¹,

Sisco²,

Vargas

2019

Ind. Eng. Chem. Res.

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New correlations for calculating the simulation parameters of the perturbed-chain version of the statistical associating fluid theory (PC-SAFT) equation of state for nonpolar hydrocarbons are presented in this work. The three PC-SAFT simulation parameterssegment number (m), segment diameter (σ), and segment–segment interaction energy (ε/k)are correlated to molecular weight and density at 20 °C for a database of 46 components containing n-alkanes, benzene derivatives, and naphthalene derivatives. The accuracy of the correlations is also tested for cycloalkanes. Contrary to PC-SAFT correlations available in the literature, the correlations developed in this work are optimized to minimize the error in vapor pressure and saturated liquid density for the components in the database rather than matching the respective PC-SAFT parameters. It is found that this approach yields increased accuracy for vapor pressure and density as compared to other correlations in the literature. Additionally, the new correlations are not family-specific, making them useful in modeling mixtures of unknown composition and chemical structure. The developed correlations are tested in modeling density and derivative properties for binary, ternary, and quinary mixtures, each treated as a lumped solvent (or a single pseudocomponent). The investigated mixtures contain n-alkanes, isoalkanes, cycloalkanes, benzene derivatives, and naphthalene derivatives. The calculations require knowledge of only the molecular weight and density at 20 °C of the mixture of interest without the need of specifying its composition or chemical structure. The improved accuracy of the proposed approach in modeling volumetric properties of hydrocarbon mixtures makes it an excellent candidate for crude oil modeling applications.

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High-Pressure Densities and Derived Thermodynamic Properties of Cyclopentane/n-Octane Mixtures from 293.15 K to 363.15 K

Wang

2023

Int J Thermophys

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PρT measurements and modelling of (n-decane + m-xylene) mixtures from 293.15 K to 363.15 K at pressures up to 60 MPa

Cited by 5 publications

References 36 publications

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

PC-SAFT Parameter Correlations from Simple Measurements at Ambient Conditions for Predictive Modeling of Nonpolar Hydrocarbons

High-Pressure Densities and Derived Thermodynamic Properties of Cyclopentane/n-Octane Mixtures from 293.15 K to 363.15 K

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PρT measurements and modelling of (n-decane + m-xylene) mixtures from 293.15 K to 363.15 K at pressures up to 60 MPa

Cited by 5 publications

References 36 publications

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

PC-SAFT Parameter Correlations from Simple Measurements at Ambient Conditions for Predictive Modeling of Nonpolar Hydrocarbons

High-Pressure Densities and Derived Thermodynamic Properties of Cyclopentane/n-Octane Mixtures from 293.15 K to 363.15 K

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PρT measurements and modelling of (n-decane + m-xylene) mixtures from 293.15 K to 363.15 K at pressures up to 60 MPa