Behin - Department of Chemical Engineering, Faculty of Engineering, Razi University, Kermanshah
Aghajari - Department of Chemical Engineering, Faculty of Engineering, Razi University, Kermanshah
Jahromi - Production unit, Iranian Offshore Oil Company, Kharg Island

The price of exporting oil of IOOC is defined by its quality. Desalters are one of the important equipments that affect the qualitative properties of produced oil, and their good design and operation conclude the oil with minimum BS&W and maximum API. These properties are in a direct relation to emulsion stability of desalter feed. In this work, the effect of asphalthene and inorganic material contents (vanadium, sodium, nickel and iron) on emulsion stability, BS&W and API of Forouzan, Abuzar, and Douroud 1 oil located in Kharg island was investigated. BS&W, API, and amount of asphalten and mentioned metals contents were measured. Emulsion of Doroud 1 oil with relatively high API, low concentration of asphalthene, and low inorganic materials is less stable than two others oil. For each type of investigated oil, increasing of inorganic materials is accompanied with increasing BS&W, and decreasing its quality (API).

Asphaltene, Inorganic materials, Emulsion stability, Desalter, Crude oil