STUDY OF EFFECT OF NEW COMPOSITION ON DEMULSIFICATION OF MURADKHANLI OIL AND MATHEMATICAL MODELING OF RESULTS
DOI:
https://doi.org/10.15421/jchemtech.v33i3.335508Keywords:
reagent, composition, demulsification, water-oil emulsion, optimal concentration, efficiency, modelingAbstract
This article presents a comprehensive study on the demulsification of highly stable emulsified oil from the Muradkhanli field, a major heavy oil-producing site in Azerbaijan. Both physical (temperature effect) and physicochemical methods were evaluated. ND-12 (Azerbaijan) and Dissolvan-4411 (Germany) demulsifiers, along with two newly developed reagent compositions (A-1 and A-2), were tested. Experiments were conducted using the bottle test method, and separated, residual, and ballast water contents were quantified. While certain emulsified oils can release significant water at 50–60 °C without demulsifiers, Muradkhanli oil forms exceptionally stable emulsions that require advanced treatments. The A-series compositions significantly enhanced demulsification efficiency, accelerating phase separation even at moderate temperatures. In particular, the A-1 composition achieved superior performance, reducing residual water content to 0.06 % and ballast water to 0.09 % at 600 g/t and 60 °C. Furthermore, a mathematical model was developed for A-1 to assess its dependence on temperature, reagent dosage, and time, with polynomial curves and 3D response surfaces confirming strong agreement with experimental data. Overall, these results demonstrate the promising potential of advanced reagent compositions to overcome the challenges associated with stable water-oil emulsions in heavy resinous crude oils. This approach offers practical insights for optimizing field separation processes and improving operational efficiency in global heavy oil production.
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