DEMULSIFICATION BEHAVIOR OF CRUDE OIL EMULSIONS İN THE PRESENCE OF MULTICOMPONENT DEMULSIFIERS
DOI:
https://doi.org/10.15421/jchemtech.v34i2.351331Keywords:
reagent, composition, surface tension, effiency, water-oil emulsionAbstract
In the present study, the demulsification of 35 % water-in-oil Muradkhanli crude oil emulsions was investigated using both individual reagents and their composite formulations. The individual reagents included ALKAN-318, ALKAN DE-202, Separol, Demin-8411, and Dissolvan-3359. Demulsification experiments were conducted at 40 °C and 50 °C for 2 hours using the bottle-test method. To enhance demulsification efficiency, demulsifier-based composite formulations were developed under laboratory conditions. These compositions consisted of the studied demulsifiers combined with ethanol, which was added to reduce interfacial tension. The optimal dosage for the composites was determined to be 500 g/t; therefore, both the individual reagents and the composites were compared within the concentration range of 150–500 g/t, and the results were presented in graphical and tabular forms. Since the formulations were based on demulsifiers, they were conventionally denoted as deemulsifier compositions (DC), and a total of ten compositions (DC-1 to DC-10) were synthesized. Along with the demulsification of 35 % water-cut Muradkhanli crude oil emulsions, the effects of both the individual reagents and the composite systems on surface tension, interfacial tension, viscosity, HLB index, and salt content were also studied, and the obtained results were comparatively analyzed. Experimental findings revealed that the highest demulsification efficiency was achieved with the DC-5 composition.
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