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Interfacial film properties of asphaltenes and resins have been studied by interfacial shear viscosity measurements. The results show that the structure of the asphaltene film at the interface between oil and water is changed from two-dimensional to three-dimensional network as the concentration of the asphaltene at the interface increased. The film can be divided into three types namely expanded...
The stability of a model emulsion stabilised by the interfacially active fractions from crude oils has been explained by the molecular properties of the fractions studied by IR, UV, GC/MS and VOP. The study clearly demonstrates that the stability of water-in-crude oil emulsions depend on a combination of factors such as molecular size, aromaticity, aromatic condensation and carbonyl group concentrations...
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