Several physical properties and the isobaric vapour-liquid equilibria at 101.32, 50, 30 kPa were measured for binary system consisting of acetone ionic liquid 1-ethyl-3-methyl-imidazolium acetate. Liquid-liquid equilibrium data also temperatures from 298.15 up to 328.35 K atmospheric pressure. An hourglass-shaped miscibility gap was found. The simultaneous correlation both VLE LLE regions 101.3...

Isothermal vapour−liquid equilibrium (VLE) for four binary systems involving R1234yf (R1234yf + R134a, R152a, R1233zd(E) and R1233xf) were measured at temperatures from 278.15 to 348.15 K. The experiments conducted by means of a “static−analytic” apparatus with phase analysis via gas chromatography, resulting uncertainties 0.6 K temperature, 8 kPa pressure maximum 0.007 vapour liquid mole fract...

Abstract Bioethanol is commonly recovered from fermentation broth via distillation because it the most economical and reliable process for large-scale industrial operations. Because extraction a highly energy-efficient applicable to low-composition bio-product separation, high-performance solvents are necessary efficient bioethanol recovery. 2-Methyl pentanol, branched long-chain alcohol, which...

A parametrization strategy for molecular models on the basis of force fields is proposed, which allows a rapid development of models for small molecules by using results from quantum mechanical (QM) ab initio calculations and thermodynamic data. The geometry of the molecular models is specified according to the atom positions determined by QM energy minimization. The electrostatic interactions ...

Thermodynamic consistency test of isothermal vapor-liquid equilibrium (VLE) data of various binary systems containing Carbon dioxide (CO2)/Room temperature ionic liquids (RTILs) have been investigated in wide ranges of pressures in each isotherm precisely. In this paper Generic van der Waals (GvdW) equation of state (EoS) coupled with modified van der Waals Berthelot mixing rule has ...

In the present paper, Mathematica, the famous computer algebra, is used to perform steadystate and dynamic simulations of a multi-component distillation column. In order to describe the vapor liquid equilibrium (VLE) relationships and to compute the vaporand liquid-phase enthalpies, the Soave Redlich Kwong equation of state (SRK EOS) is chosen. Rigorous modeling is performed where both mass and...

This paper represents a continuation of the series concerning experimental determination of vapour–liquid equilibria (VLE) in diluted polymer + solvent systems. In the previous papers we dealt with the polymeric flow improvers + toluene, hexane, chloroform1,2, poly(acrylic acid) + water3, poly(methyl methacrylate) + acetone3, and poly(methyl methacrylate) + 2-butanone4 systems. The aim of this ...

A fast time-varying discharge model with safety system capabilities has been extended to handle the accidental release of multi-component mixtures. Previously the model could only handle pure components or “pseudo-component” mixtures, but the new multi-component model carries out vapour-liquid equilibrium (VLE) calculations. This allows accurate predictions of the phase envelope between a mixtu...

The knowledge of vapour-liquid equilibrium (VLE) the carbon dioxide-alkanolamine-water system at high pressure plays a critical role in design natural gas sweetening systems. Semi-empirical thermodynamic models have been widely used to estimate VLE pressure. However, understanding their correlation behaviour is limited. Therefore, this study reviews chronological development and analyse perform...

The present work provides thermophysical data on binary mixtures of titanium(IV) isopropoxide (TTIP) and 2-propanol (iPOH), which are important precursor solutions in spray flame synthesis nanoparticles. specific density, viscosity, thermal conductivity, molar isobaric heat capacity were measured at 101.3 kPa temperatures ranging from 293.15 to 333.15 K. vapor–liquid equilibrium (VLE) was press...