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Denis Usosky,Vladyslav Aharkov,Kyung Rok Lee,Kwang-Deog Jung,Ung Lee 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.126 No.-
In this study, a comprehensive investigation of the 1-methylpyrrolidine + 1-butylimidazole binary systemwas conducted to establish a valuable foundation for process design. Isobaric binaryvapor liquid equilibrium (VLE) data was measured (80 data points) at 50.0, 20.0, 10.0, and 7.5 kPa usingdynamic equilibrium cell (VLE 602) and found that no azeotrope existed throughout the entire operatingpressure range. Thermodynamic consistency was validated using the Redlich Kister area test(9.56801%). The vapor pressure of 1-butylimidazole was determined through direct measurement (12data points) of the equilibrium temperature at different pressures and the Antoine equation parameterswere regressed based on the acquired data. The VLE data were regressed using maximum likelihood (ML)method, and binary interaction parameters (BIP) were estimated for NRTL–HOC, UNIQUAC, Van Laar, andWilson models. The model validation demonstrated consistency between calculated and experimentalvalues for temperature and mole fraction of the vapor phase. In addition, dipole moment (l) values wereevaluated by quantum chemical calculations using the Hartree–Fock (HF) method through GAMESS package. The density (12 data points), the sound velocity (12 data points), the refractive index (3 data points),and the normal boiling points (3 data points) were also measured for binary mixtures and purecomponents.