Page 396 - Characterization and Properties of Petroleum Fractions - M.R. Riazi

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(a) Colloidal Phenomenon Due to Increase in Concentration of Polar Miscible Solvent (such as polar aromatic hydrocarbons
shown by solid ellipses) in crude oil

(b) Asphaltene Flocculation and Precipitation

(c) Steric Colloid Formation

FIG. 9.7—Schematic of colloidal model for asphaltene formation. Taken with permission
from Ref. [29].

FIG. 9.8—Schematic of micellar formation in asphaltene precipita-
tion. Taken with permission from Ref. [20].
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