Viscosity for Some Organic Binary Liquid Systems: A Theoretical Study on Correlative Modeling

This study investigates the performance of different groups of binary liquid mixtures for various aliphatic hydrocarbons of both polar and non-polar types. This highlights the importance of selecting appropriate models based on the specific composition of the mixture for accurate predictions in industrial processes and product optimization. For this purpose, well-known equations of Grunberg-Nissan, Hind, Heric, Ausländer, McAllister 3- body and McAllister 4- body are utilized and tested for the viscosity data of different binary liquid systems, collected from previous research. The systems consist of various aliphatic alkanes, cycloalkanes, and alkanols. They are classified into four groups: Group A (Aliphatic Alkane + Alkane), Group B (Aliphatic Alkane + Cycloalkane), Group C (Aliphatic Alkane + Alkanol) and Group D (Aliphatic Cycloalkane + Alkanol). In order to measure the fitting capabilities for every group of systems, Standard Percentage Deviations (SPD) as well as temperature Average Standard Percentage Deviations (ASPD) for all of the systems are estimated. For both dynamic and kinematic viscosity correlations, among four categories, the best results are found for Group A (Aliphatic Alkanes + Aliphatic Alkanes), followed by Group B (Aliphatic Alkanes + Cycloalkanes), with the poorest results for Group C (Aliphatic Alkanes + Alkanols). In addition, with the increment of the chain length of the systems, a linear change in deviation is also observed.