Experimental and theoretical studies of volumetric and viscous properties of n-tetradecane with isomeric pentanols

Abstract In this research, we present the experimental measurements of physical properties of two binary liquid mixtures of n-tetradecane with 1-pentanol and 2-pentanol. Density and viscosity were measured at temperatures from (283.15 to 333.15) K with10 K intervals, underatmospheric pressure. Flash point and freezing point were measured over the entire composition range. Excess molar volume, deviation viscosity and excess Gibbs energy of activation of viscous flowof mixtures were calculated and fitted by Redlich-Kister equation. The excess molar volumes are positives, the viscosity deviations and excess Gibbs free energy are negatives over the entire composition range. Experimental excess molar volume was analyzed using Prigogine-Flory-Patterson (PFP) theory. Eyring_NRTL,Katti, Grunberg, Lobe, Heric, and McAllistercorrelations were used to fit viscosity data. Excess Gibbs free energy data were correlated using NRTL and Heil models. Among of used models PFP, Eyring_NRTL, Lobe, NRTL and Heil models gave good agreement with experimental data. All these results provide important information about thermophysical properties of hydrocarbon jet fuelwith green fuel as additives. Finally, the biojet formed by mixing the biomolecule (1-pentanol or 2-pentanol) with n-paraffin (n-tetradecane) can ameliorate the energetic efficacy and reduce dioxide of carbon emission.