Diseño de un equipo de separación de aluminio y PVC a partir de empaques blíster

Abstract

The present project aims to design an aluminum and PVC separation equipment for blister packs. The equipment was designed for a processing capacity of 59.6 kg /batch of blister packs. The operating conditions were determined to be 152 ° C and a pressure of 2 bar using n-butyl acetate as the leaching agent to separate PVC from aluminum. A design pressure of 3 bar was defined as internal design pressure, while the external pressure was 6 bar. For these conditions, carbon steel A-36 was determined as the building material for which the thickness of the equipment were determined. For the vessel body a thickness of 7/16 in was calculated, whereas for the heating jacket a thickness of ¼ in. An agitation system with at 185 RPM and an axial flow agitator (4BP) were further established. Moreover a solvent recirculation system was considered which allows the system to operate work at boiling conditions, for this system a condenser/sub-cooler with a heat transfer rate of 132,3 kW was considered. Finally, a cooling system was considered through a coil with an area of 2.06 m2. The equipment allows to separate 11.82 kg/batch of aluminum given by the composition of the blister packs. A simulation of mechanical loads of the separation equipment was performed to validate the thicknesses and determine the places where load concentration exists. In order to safeguard the integrity of the equipment, a pressure control system and a temperature control system for the output of the condenser were considered. Finally, it was determined that the cost of the equipment is 200 271,00 USD.