Experimental Vapor-Liquid Equilibrium (p, T, x) Data for Binary Systems of Propane (1) in n-Decane, n-Undecane, n-Dodecane, and n-Tridecane (2)

New sets of experimental bubble point data for binary systems of propane in n-decane, n-undecane, n-dodecane, and n-tridecane were obtained as part of this work. The data sets were obtained using synthetic constant volume (isochoric) procedures and covered a temperature range of 247-370 K and pressures up to 3.74 MPa for all the systems studied. Several system compositions (propane mole fraction) were studied, ranging from 0.2826 to 0.9522 for all of the systems. There was a very good agreement between the data sets and literature data sets (where available and covering similar conditions). Peng-Robinson (PR78), perturbed chain statistical associating fluid theory (PC-SAFT), and multifluid Helmholtz energy approximation (MFHEA) equations of state were used in modeling the experimental data obtained. Binary interaction parameters for each of the three equations of state were obtained by tuning the equations of state with a combination of the newly obtained experimental data and literature data (where available). This led to the establishment of new BIPs for the propane n-undecane and propane n-tridecane systems, as they have not been studied in the past. Combined standard uncertainties in temperature and pressure associated with each experimental data point obtained in this work were reported. The maximum uncertainty in the compositions (mole fraction) for every binary system studied was reported as the system’s overall standard uncertainty in composition.