Although mechanical recycling is a well-established technology and remains the first choice for plastics recyclers due to its high efficiency, chemical recycling is now emerging as a key step in closing the plastics recycling loop, particularly for handling heterogeneous plastic fractions that pose a challenge for mechanical recycling.
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Today, the efficient preparation of the feedstock by chemical recycling of the mixed plastic fraction, consisting of light, thin, flexible plastics with densities below 50-80 kg/m³ and high moisture content, is a major challenge in a pyrolysis process. The goal is to convert these materials into a dense and dry product with densities above 300-350 kg/m³, while maintaining consistent quality and low energy consumption.
Starting from these evaluations, Previero has redesigned its Tramu system, a continuous agglomerator with double degassing and calender. The main features of the Tramu are its ability to agglomerate plastics at a temperature 20-30% lower than a standard extruder and to remove moisture and gases at ambient pressure.
Tramu is available in three models, each suitable for different scales of operation, with capacities ranging from 600 to 3,000 kg/h.
