The effects of water-to-oil ratio, surfactant content, stayed time, and homogenizing speed on the emulsification characteristics of emulsion activity, emulsion stability, and mean micro-water-droplets diameter for a light distillate fuel oil and a heavy residual fuel oil are experimentally investigated. It is revealed that after centrifuging, the emulsion of the distillate fuel separates into four distinct layers from top to bottom of a test tube. Also, an emulsion of the distillate fuel oil emulsified with surfactant Span 20 is shown to have more fluctuating variations of emulsion activity and mean diameter of water droplets with homogenizing speed. A saturated state of the emulsion with the surfactant addition appears as the surfactant content = 1.5 to 2.0%. Higher surfactant content than 2% is shown to deteriorate the emulsification characteristics of these fuel oils. In addition, the residual fuel oil is found to have better emulsification characteristics in comparison with the distillate fuel oil.
Emulsification Characteristics of Marine Fuel Oils with Water
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Lin, Cherng-Yuan, Lin, Chein-Ming, and Cheh-Skiung Chen. "Emulsification Characteristics of Marine Fuel Oils with Water." J Ship Res 39 (1995): 86–94. doi: https://doi.org/10.5957/jsr.19220.127.116.11
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