Isobaric Vapor-Liquid Equilibrium of Ethyl Acetate+1-Hexanol, Methanol+1-Hexanol, and n-Heptane plus Cyclohexanol Binary System at 101.3 kPa

The fundamental component of thedata used in chemical calculationsis vapor-liquid equilibrium (VLE) information. The VLE databetween several routinely used extractants and chemicals often utilizedin industry still have some gaps, nevertheless. The isobaric phaseequilibrium values of ethyl acetate + 1-hexanol, methanol + 1-hexanol,and n-heptane + cyclohexanol at 101.3 kPa were measuredby using a modified Rose VLE still. The accuracy of experimental datawas verified using two test techniques, the Van Ness and Fredenslundtests, and the final experimental data were highly correlated. TheNRTL model, UNIQUAC model, and WILSON model were used to correlatethe data, and binary interaction parameters between the componentswere derived. The three systems all meet the data requirements withrespect to the root-mean-square deviation (RMSD) and average absolutedeviation (AAD) of temperature being less than 0.1 and the RMSD andAAD of the vapor phase mole fraction being less than 0.01. The experimental and predicted values of all data points are in good agreement, andthey all meet the requirements outlined in the process design. Additionally,it is discovered that the system under study behaves optimally throughoutthe whole research domain.