The simulation of reactive distillation processes requires binary phase equilibrium data and information about the reaction kinetics and equilibrium. The phase equilibrium data for the binary reacting sub-systems are difficult to measure experimentally since the products of reaction affect the binary equilibrium as soon as they are formed. A novel apparatus has been constructed to measure these...

In spite of the increasing levels greenhouse gases in atmosphere, and their impact on environment, demand for natural/biogas will increase significantly coming few decades. To cover this demand, global energy industry is continuously exploiting sour gas reserves located around world. Nonetheless, has to be sweetened before practical utilization natural or biogas. The cryogenic separation techno...

Evacuated-tube solar collector (ETSC) is developed to achieve high heating medium temperature. Heat transfer fluid contained inside a copper heat pipe directly affects the A 10 mol% of ethylene-glycol in water this system. The purpose study modify inner structure evacuated tube for promoting through aluminum fin by inserting stainless-steel scrubbers increase conduction surface area. experiment...

BACKGROUND: The prevalence and clinical relevance of Buried Barrett’s (BB) epithelium after radiofrequency ablation (RFA) in Barrett’s esophagus (BE) is questioned. Recent studies using small optical coherence tomography (OCT) catheters for scanning underneath the neosquamous epithelium demonstrated a high prevalence of tissue structures that might correspond to BB. Histological correlation, ho...

BACKGROUND: The prevalence and clinical relevance of Buried Barrett’s (BB) epithelium after radiofrequency ablation (RFA) in Barrett’s esophagus (BE) is questioned. Recent studies using small optical coherence tomography (OCT) catheters for scanning underneath the neosquamous epithelium demonstrated a high prevalence of tissue structures that might correspond to BB. Histological correlation, ho...

Despite recent research on blends of biodiesel with higher alcohols in Diesel engines, no information their behaviour as single droplets is available. This work presents experimental data the droplet evaporation 1-propanol and 1-pentanol compares them to results numerical models evaporation. The phase equilibrium non-ideal mixture alcohol was modelled using activity coefficients calculated from...

thermophysical properties of fluorine are interesting because of its applications in different areas of technologyand industry. the computations of thermodynamic properties were performed with the gma equation of stateunder critical conditions. the present work reports calculations of density, volumetric, and thermodynamicproperties of liquid fluorine on extended ranges of pressure and temperat...

An equation of state (EOS) CH4-N2 fluid mixtures in terms Helmholtz free energy has been developed by using four mixing parameters, which can reproduce the pressure-volume-temperature-composition (PVTx) and vapor-liquid equilibrium (VLE) properties mixtures. The average absolute deviation all PVTx data available up to 673.15 K 1380 bar from this EOS is 0.38%. Combining CH4-CO2 CO2-N2 our previo...

New isothermal vapor–liquid equilibrium (VLE) data for the carbon dioxide + 1,4-dioxane system are reported at four temperatures (323.15, 333.15, 343.15, and 353.15) K pressures up to 122.7 bar. The critical curve was also measured 158.8 bar 420.15 K. Phase behavior measurements were performed in a high-pressure windowed cell with variable volume, using static-analytical method phases sampling ...

Vapour-liquid equilibria (VLE) data are within the most important experimental data to correctly represent the mixtures' behaviour at the saturation boundaries. In the last years, the VLE of several new binary mixtures have been studied by our group in order to find possible alternatives for the traditional refrigerants. The data have been correlated with the Lemmon-Jacobsen model, which is the...