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Current recycling processes are inadequate for removing some odorous substances, which have migrated into the material during the product's life cycle. A multi-stage treatment is required to eliminate these odours sufficiently, allowing the pellets to be processed into high-quality end products for applications in industries such as packaging, automotive, and consumer goods.
Next Generation Recyclingmaschinen (NGR) and Kreyenborg have announced a strategic collaboration to sustainably enhance the quality of the recycled product through innovative technologies aimed at reducing odours and emissions. A modular, energy-efficient system has been developed that minimizes unpleasant odours in post-consumer plastics.
The process begins with an exceptionally efficient regranulation step based on NGR’s proven C:Gran cascade technology. An initial cleaning step occurs in the cutter compactor, where warm exhaust air from the cylinder cooling system flows through the preheated material. Optionally, a degassing zone can already be integrated before the melt filter to remove volatile contaminants. In the subsequent melt filter, all solid particles are removed from the melt stream. After filtration, the melt is fed into a highperformance degassing zone within a cascade extruder. After passing through the cascade, the melt is granulated, and the granules are transported to the Kreyenborg IR-Fresh Conditioner for post-treatment.
