Chemical Recycling of Polyolefins with the Molten Metal Reactor at 460 °C

Frank Riedewald; Jan Zuber; Philipp Rathsack; Gavin Duffy; Maria O'Mahoney; Maria Sousa-Gallagher

doi:10.1002/cite.202300056

Chemical Recycling of Polyolefins with the Molten Metal Reactor at 460 °C

Frank Riedewald
, Jan Zuber
, Philipp Rathsack
, Gavin Duffy
, Maria O'Mahoney
, Maria Sousa-Gallagher

Composite Recycling Ltd
Freiberg University of Mining and Technology
Fraunhofer Institute for Ceramic Technologies and Systems
Front Row Engineering Ltd

Research output: Contribution to journal › Article › peer-review

Abstract

This 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.

Original language	English
Pages (from-to)	1332-1338
Number of pages	7
Journal	Chemie-Ingenieur-Technik
Volume	95
Issue number	8
DOIs	https://doi.org/10.1002/cite.202300056
Publication status	Published - Aug 2023

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 12 Responsible Consumption and Production

Keywords

Heavy waxes
Molten metal reactor
Plastic recycling
Pyrolysis

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10.1002/cite.202300056

Cite this

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title = "Chemical Recycling of Polyolefins with the Molten Metal Reactor at 460 °C",

abstract = "This 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.",

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AU - Riedewald, Frank

AU - Zuber, Jan

AU - Rathsack, Philipp

AU - Duffy, Gavin

AU - O'Mahoney, Maria

AU - Sousa-Gallagher, Maria

PY - 2023/8

Y1 - 2023/8

N2 - This 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.

AB - This 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.

KW - Heavy waxes

KW - Molten metal reactor

KW - Plastic recycling

KW - Pyrolysis

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IS - 8

ER -

Chemical Recycling of Polyolefins with the Molten Metal Reactor at 460 °C

Abstract

UN SDGs

Keywords

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