HYBRID
Harnessing pYrolysis & Biotechnology to Recycle mIxed plastic waste to Dicarboxylic acids.
Plastics are everywhere. We use this carbon-based, lightweight material to package our food, insulate our houses, build wind turbines, cut transport costs, and so much more. Thanks to all the advantages and applications of plastics, a modern society without them is simply impossible to imagine. Yet, after they have been used, many carbon-based plastics end up being burned. During incineration, plastic waste releases vast amounts of CO2 into the atmosphere. The Moonshot initiative seeks to curb this type of CO2 emissions. The second Moonshot Research Trajectory, Circularity of Carbon in Materials (MOT2), supports innovative research into the recycling and reusing of plastic waste.
By developing new mechanical and chemical recycling technologies, plastic and other carbon-containing waste can be repurposed to make building blocks for new plastics and products. Through recycling, the percentage of plastics that is being reused can be increased. At the same time, the percentage of plastics that is being burned can be decreased to a minimum.
This closes the circle: it keeps carbon in materials in circulation throughout the value chain for as long as possible. CO2 is not released into the atmosphere but remains trapped in plastics. This way, circularity is a crucial pathway to make the Flemish industry carbon circular and low in CO2 by 2050.
Some plastics are complex and contain several types of material. Recycling them is a challenge. In future, plastics need to be carefully designed to guarantee easy recycling, preserve functionality and ensure lasting quality.
Even if the circle is almost closed, a small fraction of virgin raw materials will always be required to compensate for imperfections in recycling and reuse. Renewable raw materials, such as monomers that are biobased or made from the direct reuse of captured CO2 (so-called CCU or Carbon Capture and Utilization), will need to be used as necessary supplement. The sustainability impact of these scenarios will have to be studied and monitored thoroughly to create a truly circular plastics economy.
The second Moonshot research trajectory on the circularity of carbon in materials aims to: