Liquid phase PVTx properties of carbon tetrachloride-octamethylcyclotetrasiloxane binary mixtures

This study compares the estimations of two predictive approaches, namely, CP-PC-SAFT and CS-SAFT-VR-Mie for vapor pressures, saturated and high-pressure densities, sound velocities, isobaric and isochoric heat capacities of 17 representative substituted fluoro- and chloromethanes, ethanes, ethenes, propanes, and propenes, whose data are available under a wide range of conditions. Predictions of vapor–liquid equilibria (VLE) in their binary systems comprising inter alia carbon dioxide, hydrocarbons, and light gas systems with k 12 = 0 are considered as well. These models do not incorporate associative and polar interactions, which allows parametrization based on the particularly limited amount of literature data. It is demonstrated that although the overall accuracies of the considered approaches are reasonably good, each of them has their advantages and disadvantages. For example, SAFT-VR-Mie typically predicts more accurately some VLE in the symmetric systems, while CP-PC-SAFT is advantageous in estimating phase behavior of the asymmetric ones. Both models can be applied for preliminary estimation of unavailable halocarbon data for which each of them exhibits a relative superiority. In addition to this, it is demonstrated that SAFT-VR-Mie attached by square gradient theory with predictive correlation for influence parameters accurately estimates surface tensions of the considered compounds.

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“…Densities of R10 and R20 up to extremally high pressures. Points–experimental data. − Solid lines–CP-PC-SAFT and dashed lines–CS-SAFT-VR-Mie.…”

Section: Resultsmentioning

confidence: 99%

Implementation of CP-PC-SAFT and CS-SAFT-VR-Mie for Predicting Thermodynamic Properties of C₁–C₃ Halocarbon Systems. I. Pure Compounds and Mixtures with Nonassociating Compounds

Polishuk

Chiko

Cea-Klapp

et al. 2021

Ind. Eng. Chem. Res.

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“…Atmospheric subcooled liquid densities for D 4 are documented in Ref. [36], but no uncertainty is reported. Fig.…”

Section: Evaluation Of Vapor and Liquid P-v-t Datamentioning

confidence: 99%

“…Thus from a qualitative point of view, all of the measured data points of Wappmann et al are consistent. Additional P-v-T data for D 4 are provided by Benson and Winnick [36]: at a pressure of 1 atm, the specific volume is measured at different temperatures. The PRSV EoS has been chosen to verify the reported experimental values because cubic equations of state are known to predict low pressure subcooled liquid densities for non-polar or slightly polar substances with reasonable accuracy [41].…”

Section: Evaluation Of Vapor and Liquid P-v-t Datamentioning

confidence: 99%

Multiparameter equations of state for selected siloxanes

Colonna

Nannan

Guardone

et al. 2006

Fluid Phase Equilibria

134

103

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Volume‐Explicit Equation of State and Excess Volume of Mixing of Fused‐Hard‐Sphere Fluids

Vörtler¹,

Nezbeda

1990

Ber Bunsenges Phys Chem

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The paper presents a simple analytic volume‐explicit equation of state (EOS) for fluids of hard bodies made up to fused hard spheres (FHS). Application of this EOS to both pure fluids and fluid mixtures (via Amagat's law) provides an accurate description of practically all existing computer simulation data. It is found that deviations from the assumption of ideal mixing are restricted essentially to low densities only; at higher densities small deviations are detected only for quite large volume ratio of molecules while the shape does not seem to play a significant role.

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Liquid phase PVTx properties of carbon tetrachloride-octamethylcyclotetrasiloxane binary mixtures

Cited by 11 publications

References 21 publications

Implementation of CP-PC-SAFT and CS-SAFT-VR-Mie for Predicting Thermodynamic Properties of C₁–C₃ Halocarbon Systems. I. Pure Compounds and Mixtures with Nonassociating Compounds

Implementation of CP-PC-SAFT and CS-SAFT-VR-Mie for Predicting Thermodynamic Properties of C₁–C₃ Halocarbon Systems. I. Pure Compounds and Mixtures with Nonassociating Compounds

Multiparameter equations of state for selected siloxanes

Volume‐Explicit Equation of State and Excess Volume of Mixing of Fused‐Hard‐Sphere Fluids

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Liquid phase PVTx properties of carbon tetrachloride-octamethylcyclotetrasiloxane binary mixtures

Cited by 11 publications

References 21 publications

Implementation of CP-PC-SAFT and CS-SAFT-VR-Mie for Predicting Thermodynamic Properties of C1–C3 Halocarbon Systems. I. Pure Compounds and Mixtures with Nonassociating Compounds

Implementation of CP-PC-SAFT and CS-SAFT-VR-Mie for Predicting Thermodynamic Properties of C1–C3 Halocarbon Systems. I. Pure Compounds and Mixtures with Nonassociating Compounds

Multiparameter equations of state for selected siloxanes

Volume‐Explicit Equation of State and Excess Volume of Mixing of Fused‐Hard‐Sphere Fluids

Contact Info

Product

Resources

About

Implementation of CP-PC-SAFT and CS-SAFT-VR-Mie for Predicting Thermodynamic Properties of C₁–C₃ Halocarbon Systems. I. Pure Compounds and Mixtures with Nonassociating Compounds

Implementation of CP-PC-SAFT and CS-SAFT-VR-Mie for Predicting Thermodynamic Properties of C₁–C₃ Halocarbon Systems. I. Pure Compounds and Mixtures with Nonassociating Compounds