Coperion supports RenCom in production of durable biomaterial

RenCom has chosen Coperion’s state-of-the art twin screw extrusion system to enable the production of RENOL^®. Following comprehensive studies in Coperion’s extrusion test lab in Stuttgart, Germany, RenCom and Coperion were able to further develop the processing of this lignin-based material and transform it into durable, reusable biomaterial by using the ZSK twin screw extruder technology. RenCom will be able to produce up to 1000 tons RENOL^® per year starting late 2020.

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Extrusion technology for future-oriented biomaterial

RenCom has a patented material and process that energy-efficiently transforms lignin into renewable, degradable biomaterial that can replace fossil plastics, marketed under the name RENOL^®. Passing different process steps, including extrusion and compounding, RENOL^® becomes a durable, reusable biomaterial that can be used for all kinds of plastic products, such as bags and glues. It can be used directly in existing production infrastructure without any modifications to machines or methods.

Coperion has in cooperation with RenCom designed a complete extrusion system comprising a ZSK co-rotating twin screw extruder, gravimetric feeders, a strand pelletizing system, a lignin bag dump station and a big bag station to RenCom. The ZSK Mv PLUS series unites an optimally balanced large free screw volume with high screw speeds and a high specific torque. Thanks to the deeply cut screw flights thermal stress on the raw material is very low and product processing is very gently. By using the side feeder ZS-B, fillers and additives can be added to the process section according to the requirements of the end product. The complete system will be delivered in October. High quality RENOL^® pellets will be produced in the scale of 1000 tons per year.

Partnership of two innovative companies

The comprehensive studies in Coperion’s test lab and the realization of the demo system for the production of RENOL^® is seen as the beginning of a successful partnership between RenCom and Coperion.

Peter von Hoffmann, General Manager Business Unit Engineering Plastics & Special Applications at Coperion: “We are proud to supply extrusion process know-how and technology for such a future generation of biomaterial like RENOL^®. We truly believe in RenCom’s green objectives and see great potential in their bioproduct RENOL^®, which actively contributes to reducing CO₂ emissions in comparison to fossil-based plastics”

Christoper Carrick, RenCom’s Chief Executive Officer, adds: “We at RenCom are very happy to announce the partnership with Coperion. It is a fundamental key stone in our progress to supply our innovative material to a broad audience and to enter the market as early as beginning of 2021. Working with the best of its kind is particularly important as Coperion is the world leader in the field of extrusion and process engineering perfection. We are excited to further develop this partnership!”