High-pressure phase equilibrium and volumetric properties of highly asymmetric mixtures related to reservoir fluids are critical the development high-pressure high-temperature (HPHT) reservoirs. However, there is a lack relevant data accurate modeling tools. In this work, we prepared pseudo-binary methane (CH4) + stock tank oil (STO) systematically measured their densities at temperatures from ...

• Density and viscosity behavior of CO 2 + pentane or hexane is determined. Measurements were carried out up to 100 MPa temperatures (293.15 393.15) K. The data good correlated using Tammann-Tait VFT models for densities viscosities, respectively. GERG 2008, PC-SAFT CP-PC-SAFT are examined modelling densities. Viscosities compared with REFPROP10 MYS predictions. This work reports new experiment...

An extensive comparison of SRK, CPA, and PC-SAFT for the speed of sound in normal alkanes has been performed. The results reveal that PC-SAFT captures the curvature of the speed of sound better than cubic EoS, but the accuracy is not satisfactory. Two approaches have been proposed to improve PC-SAFT’s accuracy for speed of sound: (i) putting speed of sound data into parameter estimation; (ii) p...

Developing a modeling method for determining the solubilities of metal complexes in supercritical CO2 is crucial designing an effective CO2-based deposition technique. This study aimed to model solubility ferrocene, typical precursor metallic iron, CO2, which was achieved using perturbed-chain statistical associating fluid theory (PC-SAFT) conjunction with experimental data organic solvents. Pu...

We propose a predictive Density Functional Theory (DFT) for the calculation of solvation free energies. Our approach is based on Helmholtz free-energy functional that consistent with perturbed-chain SAFT (PC-SAFT) equation state. This allows coarse-grained description solvent, an inhomogeneous density PC-SAFT segments. The solute, other hand, described in full detail by atomistic Lennard-Jones ...