Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium

The fast catalytic pyrolysis of polystyrene in the hydrocarbon medium (light and heavy cycle oil) over zeolite catalysts at 450–550 °C was investigated. The influence of reaction conditions (medium, temperature, vapor residence time, polystyrene concentration) on polymer conversion and product distr...

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Autores principales: Dement’ev, Konstantin I., Bedenko, Stanislav P., Minina, Yulia D., Mukusheva, Aniya A., Alekseeva, Olga A., Palankoev, Timur A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9864068/
https://www.ncbi.nlm.nih.gov/pubmed/36679171
http://dx.doi.org/10.3390/polym15020290
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author Dement’ev, Konstantin I.
Bedenko, Stanislav P.
Minina, Yulia D.
Mukusheva, Aniya A.
Alekseeva, Olga A.
Palankoev, Timur A.
author_facet Dement’ev, Konstantin I.
Bedenko, Stanislav P.
Minina, Yulia D.
Mukusheva, Aniya A.
Alekseeva, Olga A.
Palankoev, Timur A.
author_sort Dement’ev, Konstantin I.
collection PubMed
description The fast catalytic pyrolysis of polystyrene in the hydrocarbon medium (light and heavy cycle oil) over zeolite catalysts at 450–550 °C was investigated. The influence of reaction conditions (medium, temperature, vapor residence time, polystyrene concentration) on polymer conversion and product distribution was studied. It was found that the polymer conversion is close to 100%, while ethylbenzene, benzene, and toluene are the main products of its transformation. The maximum yield of ethylbenzene (80%) was achieved at 550 °C, vapor residence time 1–2 s, polystyrene concentration 10%, and heavy cycle oil as the medium. The influence of zeolite topology on product distribution was explored. The possible mechanism of polystyrene pyrolysis was proposed.
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spelling pubmed-98640682023-01-22 Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium Dement’ev, Konstantin I. Bedenko, Stanislav P. Minina, Yulia D. Mukusheva, Aniya A. Alekseeva, Olga A. Palankoev, Timur A. Polymers (Basel) Article The fast catalytic pyrolysis of polystyrene in the hydrocarbon medium (light and heavy cycle oil) over zeolite catalysts at 450–550 °C was investigated. The influence of reaction conditions (medium, temperature, vapor residence time, polystyrene concentration) on polymer conversion and product distribution was studied. It was found that the polymer conversion is close to 100%, while ethylbenzene, benzene, and toluene are the main products of its transformation. The maximum yield of ethylbenzene (80%) was achieved at 550 °C, vapor residence time 1–2 s, polystyrene concentration 10%, and heavy cycle oil as the medium. The influence of zeolite topology on product distribution was explored. The possible mechanism of polystyrene pyrolysis was proposed. MDPI 2023-01-06 /pmc/articles/PMC9864068/ /pubmed/36679171 http://dx.doi.org/10.3390/polym15020290 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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/).
spellingShingle Article
Dement’ev, Konstantin I.
Bedenko, Stanislav P.
Minina, Yulia D.
Mukusheva, Aniya A.
Alekseeva, Olga A.
Palankoev, Timur A.
Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium
title Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium
title_full Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium
title_fullStr Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium
title_full_unstemmed Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium
title_short Catalytic Pyrolysis of Polystyrene Waste in Hydrocarbon Medium
title_sort catalytic pyrolysis of polystyrene waste in hydrocarbon medium
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9864068/
https://www.ncbi.nlm.nih.gov/pubmed/36679171
http://dx.doi.org/10.3390/polym15020290
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