ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept, as reported in this journal. The present article describes the background and implementation for new additions in latest release of TDE. Advances are in the areas of program architecture and quality improvement for automatic property evaluations, particularly for pure compounds. It is...

Phase equilibrium experimental data for the CO2/glycerol system are reported in this paper. The measurements were performed using an in situ FT-IR method for temperatures ranging from 40 C to 200 C and pressures up to 35.0 MPa, allowing determination of the mutual solubility of both compounds. Concerning the CO2 rich phase, it was observed that the glycerol solubility in CO2 was extremely low (...

The calculation of solid-fluid equilibrium at high pressure is important in the modeling and design of processes that use supercritical fluids to selectively extract solid solutes. We describe here a new method for reliably computing solid-fluid equilibrium at constant temperature and pressure, or for verifying the nonexistence of a solid-fluid equilibrium state at the given conditions. Difficu...

The limits of superheat of some binary normal paraffin mixtures were measured at pressures up to. 2128 kPa using the floating droplet method. The variation of nucleation temperature with liquid phase mole fraction was found to be nearly linear for these n-paraffin solutions over the whole pressure range in which the experiments were performed. Homogeneous nucleation theory was used to predict t...

This study presents a comparative computational examination of different cubic equations state (EoS) on hydrate inhibition fluid systems involving real reservoir fluids. Two gas inhibitors (Monoethylene glycol – MEG and methanol) were considered alongside 4 EoS namely; Cubic-Plus-Association (CPA) coupled with Infochem mixing rules, Soave-Redlich-Kwong (SRK) the Huron-Vidal (HV) rule, Peng Robi...

Within the framework of diffuse interface methods, we derive a pressure-based Baer-Nunziato type model well-suited to weakly compressible multiphase flows. The can easily deal with different equation states and it includes relaxation terms characterized by user-defined finite parameters, which drive pressure velocity each phase toward equilibrium. There is no clear notion speed sound, thus, mos...

The growing attention regarding a more sustainable future, and thus into energy recovery waste reduction technologies, has intensified the interest towards processes which allow to exploit biomasses generate energy, such as anaerobic digestion. Improving efficiency of this industrial application is crucial increase methane production, essential from economic, environmental safety point view. Th...

The extension of the translated–consistent Peng–Robinson (tc-PR) equation state (EoS) to mixtures has been investigated. For this purpose, advanced EoS/aresE,γ mixing rules are used combine tc-PR EoS with residual part an activity coefficient model chosen among Wilson, nonrandom two-liquid (NRTL), and universal quasi-chemical (UNIQUAC) models. performances three resulting versions compared agai...