Modeling of integrated Compact Multiphase Separation System (CMSS(c))

A methodology for the performance prediction of integrated Compact Multiphase Separation System (CMSS(c)) has been developed. The proposed methodology is based on tracking the evolution of droplets and bubbles throughout the system, enabling the prediction of the flow behavior through the system interconnections and process devices.;Two approaches are proposed for predicting particle size evolution in the integrated system, namely, the steady-state particle size and the discrete formulation approaches. The first proposed approach is simple, practical and computationally efficient. For the first time, the discrete formulation approach is utilized to solve the integrated system, including process devices, pipe sections, fittings and accessories.;New models have been developed for the integrated CMSS(c). These include particle (bubbles and droplets) size distribution predictions for steady-state conditions; model for particle evolution through the integrated CMSS(c); inlet flow pattern dependent modeling upstream of the CMSS(c) for predicting the amount of entrained phases and the respective particle size distributions; and, improved models for the Gas-Liquid Cylindrical Cyclone (GLCC(c)), Horizontal Pipe Separator (HPS(c)) and conventional separators.;Data bases from the open literature have been developed for particle size distributions, inlet flow characterization and separators performance. All the new models have been tested against the respective data bases showing a good agreement.;All the developments presented in this study can be incorporated in any available process simulator, improving their accuracy due to inclusion of the physical phenomena occurring in process facilities under multiphase flow.