Riedewald, FrankFrankRiedewaldZuber, JanJanZuberRathsack, Philipp-HenryPhilipp-HenryRathsackDuffy, GavinGavinDuffyO'Mahoney, MariaMariaO'MahoneySousa-Gallagher, MariaMariaSousa-Gallagher2023-07-192023-07-192023https://publica.fraunhofer.de/handle/publica/44577010.1002/cite.202300056This paper describes the pyrolysis of high-density polyethylene (HDPE) in a molten metal reactor, where the HDPE is initially in direct contact with molten metal at 460 °C. Due to the equal temperature across the molten metal, secondary reactions are minimised, and long-chain waxes with boiling points over 600 °C accumulate on the molten metal. Once enough wax has accumulated, further HDPE pyrolysis occurs within the wax in a direct heat transfer reaction.enHeavy waxesMolten metal reactorPlastic recyclingPyrolysisjournal article