Asphaltene and Resin Molecular Parameters

Asphaltene and resin molecular parameters. The molecular weights of asphaltenes and resins are = 1000 = g/gmole (Storm and Sheu, 1995) and = 850 g/mole, based on the work of Lian, Lin, and Yen (1994). The contact area of a resin on the surface of a micellar core is 21 A (assuming that the polar head of the resin being the OH 

The estimated molar volume of asphaltene molecules is = 0.9 m / kgmole (see Example 5.5), and that of resin, = 0.7 m /kgmole. The molar volume of asphalt-free oil can be readily estimated from an EOS. 

---