Mutual solubility study for 94.2:5.8 of ethanol to octane with supercritical carbon dioxide solvent

Gas Chromatograph Applications in Petroleum Hydrocarbon Fluids

“…For polar systems, cubic EOS can also be used by coupling complicated mixing rules such as the Huron-Vidal mixing rule and the Wong-Sandler mixing rule. On the other hand, Davarnejad et al (2007Davarnejad et al ( , 2008 considered the Regular Solution Equations as a general model for polar and non-polar systems.…”

Solubility of β-Carotene from Crude Palm Oil in High-Temperature and High-Pressure Carbon Dioxide

“…As shown in Figure , the equipment used in this study was a custom fabricated recirculation high-pressure type phase equilibrium apparatus that was described in detail, and the reliability of the data was already proposed in the literature. ,,, …”

“…The RST, which is adapted as a model for any system, is based on the activity coefficients by applying the following equations. The procedure for obtaining these final equations is described in detail in the literature. – However, the derived equations are slightly similar to some well-known equations such as UNIFAC, but UNIFAC equations were also obtained from the RST. (Both of them are based on the random mixing assumption.)…”

“…Therefore, in regular solution calculations, the distribution factor is a symbol of nonideality in both phases. The procedure for calculating all parameters on the basis of regular solution equations and the solubility data based on the interaction parameters have been given in detail in the literature. – …”

Phase Equilibrium Study in Supercritical Fluid Extraction of Ethanol to Octane Mixture Using CO2

“…Many researchers have proven that carbon dioxide is chemically reactive toward alcohols and general oxygen-containing compounds and it also produces weak complexation in condensed mixtures of these substances (Hildebrand and Scott 1964;Gupta, Lesslie, and King 1973;Kassim and Davarnejad 2006a,b;Kassim, Davarnejad, and Zainal 2008;Davarnejad et al 2008a).…”