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Recent Insights in Petroleum Science and Engineering
Density measurements revealed anomalies of nonideality (maxima of excess density) at some compositions in binary blends of light and heavy crude oils from diverse origins. By IR absorption measurements, density anomalies were atributed to increased contents of suspended asphaltene colloidal-sized particles/aggregates in the blends. By comparison with a database of world's native crude oils, it was concluded that density anomalies may correspond to diferent equilibrium structural states ofdoi:10.5772/intechopen.71813 fatcat:fw77dlzcfnc3hge644uxlx7he4