Separation characteristics and structure optimization of double spherical tangent double-field coupling demulsifier

Abstract The demulsification and dewatering of the W/O emulsion are widely used in petrochemical industry, oilfield exploitation, resource environmental engineering. However, efficiently treating via traditional single methods. In this study, a new double-field coupling device is proposed, where conical structure double spherical tangential type. numerical model for established, especially, population balance (PBM) to simulate coalescence breakup dispersed droplets under action. And effects three structures on internal flow separation efficiency analyzed. Results show that has significant effect droplets, especially cone more conducive improving ability small device. After optimization, optimal R value 300 mm, can be up 96.32%, which 6.13% higher than straight double-cone