Modeling of interfacial transport processes in a direct-contact condenser for metal recovery

摘要

A three-dimensional computational fluid dynamic model has been developed to investigate the efficiency of a direct-contact metal recovery condenser as a function of the operating conditions (droplet diameters, droplet injection rate) and overall condenser dimensions. The Eulerian-Lagrangian approach is used to model the condenser, where liquid zinc droplets are injected into a zinc vapor laden gas stream so that zinc vapor can directly condense on the droplets. The results show that there exists an optimum droplet injection rate that maximizes condenser efficiency. [References: 12]