Separation of glycols with close boiling points and relatively high viscosity at their melting point is a challenge in the production purity products downstream biorefinery processes. In this work, efficiency layer melt crystallization process acetone as assisting solvent was evaluated for mixture monoethylene glycol 1,2-pentanediol. Solid-liquid equilibrium measured modelled NRTL modified UNIF...

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...

The separation of benzene and cyclohexane azeotrope is one the most challenging processes in petrochemical industry. In this paper, deep eutectic solvents (DES) were used as for cyclohexane. DES1 (1:2 mix tetrabutylammonium bromide (TBAB) levulinic acid (LA)), DES2 TBAB ethylene glycol (EG)) DES3 ChCl (choline chloride) LA) entrainers, vapor-liquid equilibrium (VLE) measurements at atmospheric ...

Liquid-liquid equilibrium (LLE) problems such as phase stability analysis, phase equilibrium calculations, chemical equilibrium calculations, binary interaction parameter identification of thermodynamic models and other problems of fluid characterization have been the core subject of many recent studies. This study introduces Cuckoo Search (CS), Firefly Algorithms (FA) and its variants as p...