Viability of Glycolysis for the Chemical Recycling of Highly Coloured and Multi-Layered Actual PET Wastes
dc.contributor.author | Asueta, Asier | |
dc.contributor.author | Arnaiz, Sixto | |
dc.contributor.author | Miguel-Fernández, Rafael | |
dc.contributor.author | Leivar, Jon | |
dc.contributor.author | Amundarain, Izotz | |
dc.contributor.author | Aramburu, Borja | |
dc.contributor.author | Gutiérrez Ortiz, José Ignacio ![]() | |
dc.contributor.author | López Fonseca, Rubén ![]() | |
dc.date.accessioned | 2023-11-23T18:55:50Z | |
dc.date.available | 2023-11-23T18:55:50Z | |
dc.date.issued | 2023-10-23 | |
dc.identifier.citation | Polymers 15(20) : (2023) // Article ID 4196 | es_ES |
dc.identifier.issn | 2073-4360 | |
dc.identifier.uri | http://hdl.handle.net/10810/63142 | |
dc.description.abstract | The chemical recycling of poly(ethylene terephthalate) –PET– fractions, derived from actual household packaging waste streams, using solvolysis, was investigated. This recycling strategy was applied after a previous on-line automatic identification, by near-infrared spectroscopy –NIR–, and a subsequent selective sorting of the different PET materials that were present in the packaging wastes. Using this technology, it was possible to classify fractions exclusively including PET, virtually avoiding the presence of both other plastics and materials, such as paper, cardboard and wood, that are present in the packaging wastes, as they were efficiently recognised and differentiated. The simple PET fractions, including clear and monolayered materials, were adequate to be recycled by mechanical means meanwhile the complex PET fractions, containing highly coloured and multi-layered materials, were suitable candidates to be recycled by chemical routes. The depolymerisation capacity of the catalytic glycolysis, when applied to those complex PET wastes, was studied by evaluating the effect of the process parameters on the resulting formation and recovery of the monomer bis(2-hydroxyethyl) terephthalate –BHET– and the achieved quality of this reaction product. Comparable and reasonable results, in terms of monomer yield and its characteristics, were obtained independently of the type of complex PET waste that was chemically recycled. | es_ES |
dc.description.sponsorship | This research was funded by the Department of Economic Development, Sustainability and Environment of The Basque Government by its ELKARTEK 2023 Program (NEOPLAST 2 Project, Reference KK-2023/00060), and also by CDTI (Centro para el Desarrollo Tecnológico Industrial), within the framework of grants for Technological Centres of Excellence “Cervera” (OSIRIS Project, CER-20211009). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | household packaging waste | es_ES |
dc.subject | plastic waste | es_ES |
dc.subject | highly coloured PET | es_ES |
dc.subject | multi-layered PET | es_ES |
dc.subject | on-line identification | es_ES |
dc.subject | NIR | es_ES |
dc.subject | solvolysis | es_ES |
dc.subject | catalytic glycolysis | es_ES |
dc.subject | BHET | es_ES |
dc.title | Viability of Glycolysis for the Chemical Recycling of Highly Coloured and Multi-Layered Actual PET Wastes | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2023-10-27T13:00:26Z | |
dc.rights.holder | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/15/20/4196 | es_ES |
dc.identifier.doi | 10.3390/polym15204196 | |
dc.departamentoes | Ingeniería química | |
dc.departamentoeu | Ingeniaritza kimikoa |
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Except where otherwise noted, this item's license is described as © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).