Measurement and prediction of thermophysical properties of binary mixtures of dicyclopentadiene with methylcyclohexane, toluene, and p-xylene

•Flash point. density and viscosity of high density fuel with additives were measured.•Flash point data were fitted by UNIFAC and ASOG models.•PFP theory was applied to estimate excess molar volume.•Several correlations were used to predict viscosity.•NRTL, UNIQUAC and Heil models were employed to correlate the excess Gibbs energy. Flash point. density and viscosity of three binary mixtures containing dicyclopentadiene (DCPD) with methylcyclohexane, toluene and p-xylene were measured in the present work. The experimental data of flash points were compared with the values calculated by Le Chatelier modified equation. Activity coefficients were estimated by the UNIFAC, UNIFAC Dortmund and ASOG models. Also, excess molar volumes, viscosity deviation and excess Gibbs energy of activation of viscous flow were calculated from data of density and viscosity. Prigogine-Flory-Patterson theory was applied to predict VmE. Empirical models were used to predict the viscosity data. NRTL, UNIQUAC and Heil models were applied to calculate G*E. The findings have been employed to examine structural effects and molecular interactions which are dominant between compound molecules. The obtained experimental results showed weak molecular interactions and theory study demonstrated that UNIFAC, PFP, Eyring_NRTL, Lobe, and NRTL were the best models found to fit the flash point, excess molar volume, viscosity and excess free Gibbs energy.