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Recycling and PURification of Ethylene and Terephthalic Derivative

Objective

With up to 90% of EU plastic waste unrecycled, the linear plastic economy will continue; heavily reliant on finite crude oil-based feedstocks. With the current recycling system solely based on mechanical recycling, which can only process 95% pure mono-stream feedstock, it means the more abundant post-consumer mixed waste mounting at municipal waste management sites will never be recycled as sorting will be prohibitively costly.
DePoly SA has developed the world’s first energy- and cost-efficient recycling technology to convert post-consumer and post-industrial plastic waste back into their original monomers. These monomers can be sold to plastics manufacturers, creating sustainable oil free plastics for the market. The process is 65% more CO2-efficient than traditional plastic production from oil, and selectively treats only the targeted polymer in the mix. So, when targeting PET, only PET will be broken down to its monomers purified terephthalic acid (PTA) and mono-ethylene glycol (MEG) in the process, with the remainder of the waste stream unaffected. Ultimately, this means that we can:
1. Eliminate the need for sorting plastic waste into mono-streams;
2. Recycle plastic containing impurities (e.g. dyes, additives, food residues) and
3. Break down other polymers into their monomers in a next step.
This process is 99% efficient and allows recycling of waste infinite times, making elimination of crude oil feedstocks possible. The technology is at an advanced stage of development, having been tested extensively (for PET) at our 50 T/year pilot plant and with a 500 T/year semi-industrial Showcase plant under construction. This project seeks optimise and scale-up PTA and MEG purification and crystallisation processes to enable drop-in capability of monomers into existing PET production processes.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-EIC-ACC - HORIZON EIC Accelerator

See all projects funded under this funding scheme

Call for proposal

(opens in new window) HORIZON-EIC-2025-ACCELERATOR-02

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Coordinator

DePoly
Net EU contribution
€ 2 499 642,88
Address
Rue de l'Industrie 23
1950 Sion
Switzerland
SME
Yes
Region
Schweiz/Suisse/Svizzera Région lémanique Valais / Wallis
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Links
Total cost
No data