Energy efficient silo deodorization of plastics compounds
All along the entire production process, Coperion offers various solutions for reliably deodorizing plastics. Odor removal in mechanical processing, devolatilization in the twin screw extruder, and Coperion’s EcoFresh Silo devolatilization solutions are available.
EcoFresh is the final material handling final step in deodorization. Here, the finished compound is degassed in a silo using hot air. Coperion’s EcoFresh silo devolatilization solutions ensure that any residual odors are removed from the compounds, resulting in a product that is - e.g. when recycling plastics - on par with new plastic in terms of odor quality. We offer the option of a unique twin silo or a single silo design for plastic compound deodorization.
Our Twin Silo solution uses one silo to heat and deodorize the granulate and another to cool the granulate with cold air. This configuration is highly energy efficient because the process heat from the cooler is 100% used to heat the pellets in the deodorization silo. The devolatilization medium (dry or humid air, pressure) and the temperature can be set individually. Located inside or outside the production building, our twin silo system is optimized for continuous processing. Additionally, a solution for Batch processes is available.
Our Single Silo solution uses two Bulk-X-Change heat exchangers so heating, degassing and cooling can take place in one unit. This continuous process setup is very energy efficient in applications where the product is already heated and only requires a low purge air flow.
