The prediction of phase equilibria for hydrocarbon/water blends in separators, is a subject considerable importance chemical processes. Despite its relevance, there are still pending questions. Among them, the correct number phases. While stability analysis using Gibbs Free Energy mixing and NRTL model, provide good understanding with calculation issues, when HYSYS V9 Aspen Plus software, this ...

Objectives : Acid gases such as carbon dioxide (CO<sub>2</sub>) and hydrogen sulfide (H<sub>2</sub>S) that cause global warming are mainly generated in chemical processes. As a technology for reducing acid gas, the post-combustion capture process is representative. Aqueous alkanolamine solution, which used absorption process, most representative absorbent. Thermodynamic ...

• New aerosol size distribution model. Prediction of development through absorber and water wash. Comparison with experimental data from pilot plant. emissions A new improved model has been developed tested against data. An e-NRTL equilibrium for MEA was extended to cover sulphuric acid containing droplets validated eboulliometer in this work. The droplet predicts without demister installed the...

Abstract Examinations of two-component mixtures, namely: triphenylamine + centralite I (TPA CI) and akardite II AkaII) were carried out using differential scanning calorimetry (DSC), which served to determine phase diagrams. Experimental data described with NRTL model eutectic points for both systems determined. For TPA CI system, they equal x Eu,TPA = 0.2899, T Eu 62.9 °C, whereas AkaII system...

A hierarchical hybrid method combining experimental-database-derived estimation of extraction performance, quantitative structure–property relationship (QSPR)-based assessment IL physical and environmental properties, liquid–liquid (LLE) measurement, process evaluation is proposed to screen practically suitable ionic liquid (IL) solvents for different extractions. From the literature, 47 424 in...

A method based on the Genetic Algorithm (GA) was developed to study the phase behavior of multicomponent and multiphase systems. Upon application of the GA to the thermodynamic models which are commonly used to study the VLE, VLLE and LLE phase equilibria, the physically meaningful values for the Binary Interaction Parameters (BIP) of the models were obtained. Using the method proposed in this ...