PC-SAFT characterization of crude oils and modeling of asphaltene phase behavior

► This paper addresses the prediction of asphaltene precipitation at high pressure and temperature. ► The modeling is done using the Perturbed Chain form of the Statistical Associating Fluid Theory Equation of State. ► This manuscript describes the procedure followed to tune the simulation parameters to available data. ► Model parameters estimated for a given gas injection percentage, predicted the rest of the behavior at other compositions. ► Comparing against experimental data, predictions are remarkable in a wide range of temperature, pressure and composition.