Estudo numérico do processo de separação de um sistema bifásico em separador ciclônico.

Abstract

The disposal of industrial effluents into the environment is a problematic that has attracted the attention of engineers and researchers. In the petroleum industry, produced water contains oil in high concentrations, and your disposal causes serious problems to the environment. Several equipments of water/oil separation have dimensions that unfeasible its use on oil rigs. In these situations, have been used compact equipments such as two-phase separators and hydrocyclone. The present work proposes to study a water/oil separation equipment with operating principle similar to traditional hydrocyclone called cyclonic separator. All simulations were performed using the commercial package Ansys CFX using the particle model to describe the two-phase flow water/oil and the RNGk-s turbulence model. Were evaluated the dynamics of flow, and the influence of feed flow rate and concentration of mixture on water/oil separation efficiency using the cyclonic separator. The proposed cyclonic separators tend to concentrate the oil in the central region since the beginning of the flow. Getting greater separation efficiency, equal to 99.5%, for the case of flow 9 m7h oil concentration of 5.0 % in the mixture fed.