20 PETplanet Insider Vol. 25 No. 07+08/24 www.petpla.net PETproducts Recycled PET drying technology Eisbär Trockentechnik GmbH has been specialising in drying systems for many years. In the last five years, the company has gradually expanded its focus to include the drying of rPET, responding to the growing demand for sustainable and efficient recycling processes. Drying rPET presents challenges due to its higher moisture content and potential contaminants compared to virgin PET. Eisbär has developed drying technologies to address these challenges, ensuring that the recycled material meets the stringent quality standards required for further processing. The company’s rPET drying systems incorporate several technological advancements. These include energy efficiency, where Eisbär utilises state-of-the-art heat recovery techniques and optimised drying processes to reduce energy consumption. Additionally, the systems are claimed to feature advanced process control, enabling precise monitoring and adjustment of drying parameters to ensure consistent and high-quality output. Scalability is another key feature, with Eisbär offering flexible solutions that can be tailored to different production volumes and specific customer requirements, making their systems versatile and adaptable. The demand for rPET drying solutions remains robust, reflecting the industry’s growing commitment to recycling and sustainability, says Eisbär. www.eisbaer.at An agglomeration unit for chemical recycling of plastics Previero N. with its Sorema division, known for highquality recycling solutions, has now redesigned its Tramu technology as a further step in closing the plastics recycling loop, especially for processing heterogeneous plastic fractions that pose a challenge for mechanical recycling. Efficient processing of the source material using a chemical recycling process is a major challenge today. The mixed plastic fraction, which consists of light, thin, flexible plastics with densities below 50-80 kg/m³ and a high moisture content, is processed in a pyrolysis process. The aim is to convert these materials into a dense, dry product with a density of over 300-350 kg/m³ while ensuring consistent quality and low energy consumption. In the context of chemical recycling, Previero has redesigned its Tramu technology, a continuous agglomerator with double degassing and calender. The main features of Tramu are its ability to agglomerate plastics at a temperature 20-30% lower than that of a standard extruder, and to remove moisture and gases at ambient pressure. By operating the machine under these conditions, the Tramu boasts low energy consumption. Wear and tear have been greatly reduced, while final density is ensured by degassing and calendering before final grinding. Tramu is available in three models, each suitable for different scales of operation, with capacities from 600 kg/h to 3,000 kg/h. www.sorema.it RECYCLING
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