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Chemical depolymerisation for polystyrene

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Technology Description

This chemical recycling technology uses chemicals to break down polymers into monomers. Techniques vary in the amount of heat and pressure used, but in general, considerably less heat is used compared to pyrolysis.

Relevance for Net Zero

Improved recycling would help reduce the need for virgin production and can reduce downcycling in which a material is recycled into a lower value end. However, behavioural barriers also need to be overcome to increase plastics collection rates, and secondary production is unlikely to ever fully replace the need for primary production.

Key Countries

Canada, United States

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