EDITOUR PETplanet Insider Vol. 23 No. 10/22 www.petpla.net 32 Always the right atmosphere Strong growth in the PET recycling sector has led to a substantial increase in turnover for the supplier Eisbär in Götzis, Austria. The PET sector has doubled in 2.5 years. PETplanet spoke to CEO Martin Spiegel about particular developments in the rPET sector. Eisbär is a traditional manufacturer of dryers and dehumidifiers for the PET sector. What was once always part of the machines has now been developed by Eisbär as a plug and dry application. “The user only wants two buttons on the machine, i.e. an “on” and an “off”, says Spiegel. The compact module consists of a dryer for PET granulate and flakes, a drying hopper and conveyor for low material flows. As well as simplicity of operation, Spiegel is increasingly focusing on the issue of low-impact drying, particularly in the rPET area. High temperatures can cause the material to degrade, resulting in a yellow or grey haze. Eisbär offers a twostep solution in which the material is initially dried at low temperatures Tour Sponsors: so far have the capacity of 12,000 l, with the biggest dryer operating at 6,000 kg/h. www.eisbaer.at Mr Martin Spiegel, CEO at Eisbär A ‘plug and dry’ dryer Advanced rPET plant and only later heated to the required 170 °C to 180 °C. As well as preventing the appearance of the yellow or grey haze, the process is also more energy-efficient than a one-step system. In the meantime, Eisbär is responsible for overall planning at the plant, particularly for more complex challenges. Drying and recrystallisation are taken into account. Depending on material flow, benzenes caused by PVC residues can also be removed. By switching from open to closed recirculation systems, energy consumption can be significantly reduced. As a result, 100,000m3/h of air are circulated per hour. Finally, energy efficiency is now an important element within the total cost of ownership. The largest crystallisers built The right tools and expertise to help with your rPET goals! Agr is uniquely positioned to support your venture into rPET bottle manufacturing with a powerful combination of Process Control tools, Process Consultants, and decades of industry experience. AGRINTL.COM • +1.724.482.2163
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