Status, potentials and risks of Chemical recycling of waste plastics

• Unité de recherche: OFEV
• Numéro de projet: ExSt.2024.1620

Mots-clé (Allemand)

Internationales, Abfall, Studien

Mots-clé (Anglais)

International affairs, Waste, Studies

Mots-clé (Français)

Affaires internationales, Déchets, Études

Mots-clé (Italien)

Affari internazionali, Rifiuti, Studi

Description succincte (Anglais)

Chemical recycling aims to convert plastic waste into chemicals or raw materials for the chemical industry using different technologies. Process approaches for chemical recycling of plastics include solvolysis, liquefaction, pyrolysis and gasification. With solvolysis, polymers are processed into monomers or secondary raw materials using solvents. Liquefaction is the thermal conversion of polymers into smaller molecules at higher temperatures. Products are mainly oil and a solid residue. Pyrolysis is the thermal conversion of polymers into smaller molecules in the absence of oxygen. Products from pyrolysis are mainly gas, oil and a solid residue. The conversion of polymers into a gas at high temperatures with a limited amount of oxygen is called gasification. The gas (also called syngas) can be used as a raw material for further processing in the chemical industry. However, an internationally recognized or legal definition of chemical recycling is not yet established, but necessary in order to ensure compatibility of different legal regulations and planning security for businesses.

Documents annexés

• Status, potentials and risks of Chemical recycling of waste plastics [PDF] 5'249 kB

Mandataire (Anglais)

Prof. Dr.-Ing. Peter Quicker, Köln (D)

Budget imputé (Anglais)

BAFU

Bases légales (Anglais)

Art. 57 Abs. 1 RVOG | Art. 57 al. 1 LOGA. | Art. 57 cpv. 1 LOGA

Droits d'auteur (Anglais)

Copyright, Bundesbehörden der Schweizerischen Eidgenossenschaft | Droits d'auteur: autorités de la Confédération suisse | Diritti d'autore: autorità della Confederazione Svizzera | Dretgs d'autur: autoritads da la Confederaziun svizra | Copyright, Swiss federal authorities

Renseignements (Anglais)

BAFU, Abteilung Internationales, 3003 Bern