Experimental Investigation of De-Oiling Hydrocyclone

Abstract

Even though the hydrocyclone can be well used for de-oiling, the major problem with normal hydrocyclones is that they discharge relatively large amounts of oil with the water through the underflow. Therefore, the suitable hydrocyclone proportion and optimum hydrocyclone operating conditions should be investigated carefully to achieve better separation efficiency. In this research, a 35 mm hydrocyclone was studied for separating 25% of oil and 75% of water. The objective of the present manuscript was to investigate the important parameter and operating conditions that affected the oil recovery in the overflow. The investigated factors were inlet diameter, inlet velocity and flow ratio. From the experimental results obtained it could be concluded that 1) a decrease in inlet diameter led to an increase in the oil recovery in the overflow; 2) an increase in inlet velocity led to an increase in the oil recovery in overflow. In fact, the inlet velocity that provided the best oil recovery in this research was 8 m/s; 3) an increase in the flow ratio led to an increase in the oil recovery in the overflow.

Simulation of Separation of Salt Solution from Crude Oil in a Hydrocyclone

“…order to use the simulation results, the simulation results must first be compared with the experimental data for acceptance of the predictions of the developed model. It is observed in Figure 5 that the calculated separation efficiency (Seperation Efficiency � Mass flowrate of outlet oil from top offload/Mass flowrate of inlet oil) by this simulation has less than a ten percent difference from the experimental data obtained by Prataran et al [42]. Attending to the complexity of this problem, this range of error of the validated results is acceptable [35].…”

Statistical Modelling of Oil Removal from Surfactant/Polymer Flooding Produced Water by Using Flotation Column

“…The technologies used for the produced water treatment depends on whether the installation is based on onshore or offshore. The most commonly used techniques for separation of the oily wastewater include gravity separation [4], membrane filtration separation [5], flotation [6][7][8] and hydrocyclone [9][10][11]. For offshore installation, the footprint is generally a critical factor compared to the onshore installation because of the space limitation.…”