Asphaltene Precipitation, Experimental and PC-SAFT Modeling
Asphaltenes are the heaviest and most polarizable fractions of crude oils. As a result, they have a high tendency to aggregate and flocculate under certain conditions. Asphaltene precipitation and subsequent deposition in production tubing and topside facilities present significant cost penalties to crude oil production. Therefore, it is highly desirable to predict their phase behavior to preventing or delaying deposition. One of the most common approaches for prediction of asphaltene precipitation is using the thermodynamic models. In this study PC-SAFT equation of state is used to predict asphaltene precipitation in Iranian dead oil sample. Asphaltene content is obtained by filtration method of the oil samples diluted with specific concentrations of different normal alkanes. Also…
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