Vapor–liquid equilibrium (VLE) and density data for binary systems of branched alkanes + ethyl acetate are scarce in the literature. In this study, mixtures 3-methylpentane 2,3-dimethylbutane were investigated. Density measurements at atmospheric pressure performed using a vibrating tube meter 293.15, 298.15 303.15 K. Large positive excess molar volumes calculated correlated Redlich–Kister-type...

Terpenes are important varietal compounds responsible for the characteristic aromas of alcoholic beverages. Reliable vapor–liquid equilibrium (VLE) data this class aroma in hydroalcoholic media is essential to understand their behavior during distillation and thus achieve a desired quality distilled products. In work, experimental measurements VLE ?-terpineol highly diluted ethanol–water mixtur...

BACKGROUND: Although phenol is a key intermediate in the plastics and polycarbonate industry, it also toxic component that requires removal from dilute aqueous streams, potentially by liquid–liquid extraction (LLX). For LLX, cumene suggested as solvent already present processes industry. recovery of distillation, knowledge on vapor–liquid equilibrium (VLE) behavior important, combination with h...

An improved understanding of the Non-Random Two Liquid model can improve correlation vapor liquid equilibrium (VLE) phase behavior beyond trial-and-error approach often employed. This work provides a rigorous, systematic evaluation model’s capabilities to contribute unqualified, component-independent findings and recommendations─a limitation previous studies. First, evaluations isobaric isother...

Modeling of thermodynamic properties mixed-solvent electrolyte solutions is challenging. Reliable experimental data are essential for any model development and parametrization. In this work, a benchmark database (water + methanol/ethanol alkali halide) presented. The available mean ionic activity coefficient (MIAC) vapor–liquid equilibrium (VLE) comprehensively collected critically evaluated 61...

This work studies two binary mixtures of R1243zf + R1234yf and R245cb which can be possibly used as a long-term alternative refrigerant for heat pumps. We present critical property (critical temperature, pressure, density) vapor liquid equilibrium (VLE) binaries. The maximum extended uncertainties (k=2) are estimated U(T) = 0.21 K, U(p) 0.048 MPa, U(ρ) 6.4 kg/m3 measurement, 0.06 K 0.015 MPa bu...

Recently, dimethyl ether (DME) has been paid much attention as a clean fuel. DME has many advantages as a substitute for liquefied petroleum gas (LPG). Sulfur oxides (SOx), and particulate matters (PM) are not produced at the combustion. Infrastructures and equipments for LPG can be used with slight improvements, because physical properties of DME are similar to those of light hydrocarbons, pro...

The reliable solution of nonlinear parameter estimation problems is an important computational problem in chemical process engineering, both in on-line and off-line applications. Conventional solution methods may not be reliable since they do not guarantee convergence to the global optimum sought in the parameter estimation problem. We demonstrate here a technique, based on interval analysis, t...

The reliable solution of nonlinear parameter estimation problems is an important computational problem in the modeling of vapor-liquid equilibrium (VLE). Conventional solution methods may not be reliable since they do not guarantee convergence to the global optimum sought in the parameter estimation problem. We demonstrate here a technique, based on interval analysis, that can solve the nonline...

The prediction method of the isobaric vapor-liquid-liquid equilibria (VLLE) data for the system ethanol-water-1-butanol and ethanol-2-butanol-water was studied. The parameters for the activity coefficients models were determined from the constituent binary VLE data. With the parameters, the isobaric ternary VLLE data were predicted and compared with the experimental ones obtained in our previou...