Authors : Maryam Ibrahim Chasib and Raghad Fareed Qasim
Abstract: Separation of oil in water emulsion is very challenging issue, especially, in industrial applications. Two identical hydrocyclones are designed and used to separate oil (kerosene) from oil in water emulsion. The operational variables such as split ratio (0.1-0.9), feed flow rate (6-12 L/min) and inlet oil concentration (250-1250 ppm) as well as the design parameters such as vortex finder length (0.6-2.7 cm) are investigated for single and double hydrocyclones. It was shown that the separation efficiency is enhanced by connecting two hydrocyclones in series. The optimum conditions were estimated using Minitab program with 23 factorial design of experiments. It was shown that optimum feed flow rate Qi = 12 L/min, inlet oil concentration Ci = 250 ppm, split ratio F = 0.9 and VFL = 1.3 cm gave maximum obtainable separation Efficiency (Ej = 94.78%) and minimum Pressure Drop Ratio (PDR = 0.895) for single hydrocyclone. This efficiency increased to 95.2% and PDR decreased to 0.86 by using two hydrocyclones.
Maryam Ibrahim Chasib and Raghad Fareed Qasim, 2019. Design and Experimental Study of Two-Stage Hydrocyclones for Oil-Water Separation. Journal of Engineering and Applied Sciences, 14: 6890-6896.