Chemical Recycling of Mixed Plastic Wastes by Pyrolysis – Pilot Scale Investigations. Issue 11 (26th August 2021)

• Record Type: Journal Article
• Authors: Zeller, Michael; Netsch, Niklas; Richter, Frank; Leibold, Hans; Stapf, Dieter
• Other Names: Kühne Christian guestEditor.
• Is Part Of: Chemie Ingenieur Technik. Volume 93:Issue 11(2021)
• Page Start: 1763
• Page End: 1770
• Publication Date: 2021-08-26
• Subjects: Chemical recycling -- Circular economy -- Mixed plastic waste -- Pyrolysis; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.202100102
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: Chemical recycling of plastic wastes can be a useful complement to mechanical recycling to achieve the required plastics recycling rates and to establish a circular economy that is climate neutral and resource‐efficient. Different mixed plastic wastes that are subject to future recycling efforts are studied under uniform conditions of intermediate pyrolysis characterized by a medium heating rate and pyrolysis temperature. Product distributions and selected product properties are determined, and process mass and energy balances are derived. Product yields and compositions are highly dependent on the waste pyrolyzed. The results show that pyrolysis is a suitable process to recover chemical feedstock from various complex mixed plastic wastes. Abstract : Chemical Recycling can convert waste materials into feedstock for the chemical industry and thus aid the establishment of a circular economy. The pyrolysis of representative mixed plastic wastes was investigated in pilot scale as an alternative to incineration of these wastes. Mass and energy balances, as well as product analyses, are presented.