Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO

Pursuing the aim of improving the current waste plastics management strategy, we have investigated the co-hydrocracking of high-density polyethylene (HDPE) with vacuum gasoil (VGO) over a PtPd/HY catalyst for converting this blend into high-quality fuels. In particular, the work was focused on asses...

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Autores: Vela Díaz, Francisco Javier, Palos Urrutia, Roberto, Rodríguez Plaza, Suní, Azkoiti Elustondo, Miren Josune, Bilbao Elorriaga, Javier, Gutiérrez Lorenzo, Alazne
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/61567
Acceso en línea:http://hdl.handle.net/10810/61567
Access Level:acceso abierto
Palabra clave:hydrocracking
plastic
vacuum gasoil
waste refinery
fuel
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spelling Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGOVela Díaz, Francisco JavierPalos Urrutia, RobertoRodríguez Plaza, SuníAzkoiti Elustondo, Miren JosuneBilbao Elorriaga, JavierGutiérrez Lorenzo, Alaznehydrocrackingplasticvacuum gasoilwaste refineryfuelPursuing the aim of improving the current waste plastics management strategy, we have investigated the co-hydrocracking of high-density polyethylene (HDPE) with vacuum gasoil (VGO) over a PtPd/HY catalyst for converting this blend into high-quality fuels. In particular, the work was focused on assessing the effects of the reaction time on the product yields and on the composition of the gas, naphtha and light cycle oil (LCO) fractions, which was determined by chromatographic means. The experimental runs were carried out in a 100 mL semi continuous stirred tank reactor varying the reaction time between 15 and 120 min and maintaining constant the rest of the variables at 420 °C (temperature reached using an electrical heating jacket and following a 5 °C min−1 heating ramp), 80 bar and a catalyst to oil mass ratio of 0.075 gcat goil−1. The results shown that at 120 min a naphtha fraction rich in 1-ring aromatics and with a RON value of 92.5 was obtained, while the LCO fraction was mainly iso-paraffinic with a cetane index of 43.8. Hence, these fractions could be used in the corresponding blending stages of commercial gasoline and diesel. Furthermore, the coke deposited on the catalyst was analyzed by means of TPO, obtaining that it was mainly formed at short contact times (< 15 min) and that its nature evolved with contact time being less condensed at long contact times.This work has been carried out with the following financial support: (i) grant PID2021–125255OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”; (ii) the European Union’s Horizon 2020 Research and Innovation Program under the Marie Skłodowska-Curie Actions (grant No 823745); and, (iii) the Basque Government (grant IT1645-22).ElsevierEuropean Commission202320232023info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/61567reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/823745info:eu-repo/grantAgreement/MICINN/PID2021–125255OB-I00/https://www.sciencedirect.com/science/article/pii/S0165237023000724info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/)Atribución-NoComercial-SinDerivadas 3.0 Españaoai:addi.ehu.eus:10810/615672026-06-18T09:23:17Z
dc.title.none.fl_str_mv Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
title Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
spellingShingle Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
Vela Díaz, Francisco Javier
hydrocracking
plastic
vacuum gasoil
waste refinery
fuel
title_short Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
title_full Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
title_fullStr Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
title_full_unstemmed Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
title_sort Study on the role of the reaction time in the upcycling of HDPE by co-hydrocracking it with VGO
dc.creator.none.fl_str_mv Vela Díaz, Francisco Javier
Palos Urrutia, Roberto
Rodríguez Plaza, Suní
Azkoiti Elustondo, Miren Josune
Bilbao Elorriaga, Javier
Gutiérrez Lorenzo, Alazne
author Vela Díaz, Francisco Javier
author_facet Vela Díaz, Francisco Javier
Palos Urrutia, Roberto
Rodríguez Plaza, Suní
Azkoiti Elustondo, Miren Josune
Bilbao Elorriaga, Javier
Gutiérrez Lorenzo, Alazne
author_role author
author2 Palos Urrutia, Roberto
Rodríguez Plaza, Suní
Azkoiti Elustondo, Miren Josune
Bilbao Elorriaga, Javier
Gutiérrez Lorenzo, Alazne
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv hydrocracking
plastic
vacuum gasoil
waste refinery
fuel
topic hydrocracking
plastic
vacuum gasoil
waste refinery
fuel
description Pursuing the aim of improving the current waste plastics management strategy, we have investigated the co-hydrocracking of high-density polyethylene (HDPE) with vacuum gasoil (VGO) over a PtPd/HY catalyst for converting this blend into high-quality fuels. In particular, the work was focused on assessing the effects of the reaction time on the product yields and on the composition of the gas, naphtha and light cycle oil (LCO) fractions, which was determined by chromatographic means. The experimental runs were carried out in a 100 mL semi continuous stirred tank reactor varying the reaction time between 15 and 120 min and maintaining constant the rest of the variables at 420 °C (temperature reached using an electrical heating jacket and following a 5 °C min−1 heating ramp), 80 bar and a catalyst to oil mass ratio of 0.075 gcat goil−1. The results shown that at 120 min a naphtha fraction rich in 1-ring aromatics and with a RON value of 92.5 was obtained, while the LCO fraction was mainly iso-paraffinic with a cetane index of 43.8. Hence, these fractions could be used in the corresponding blending stages of commercial gasoline and diesel. Furthermore, the coke deposited on the catalyst was analyzed by means of TPO, obtaining that it was mainly formed at short contact times (< 15 min) and that its nature evolved with contact time being less condensed at long contact times.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/61567
url http://hdl.handle.net/10810/61567
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/EC/H2020/823745
info:eu-repo/grantAgreement/MICINN/PID2021–125255OB-I00/
https://www.sciencedirect.com/science/article/pii/S0165237023000724
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
Atribución-NoComercial-SinDerivadas 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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