Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst

Motivated by the necessity of intensifying the valorization of secondary refinery streams and of extending the life cycle of the catalysts, this study aims to obtain high quality gasoline in the hydrocracking of a pre-hydrotreated light cycle oil (HT-LCO) using noble metals catalysts supported on a...

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Autores: Crespo Briones, Iratxe, Palos Urrutia, Roberto, Trueba Fraile, Juan David, Bilbao Elorriaga, Javier, Arandes Esteban, José María, Gutiérrez Lorenzo, Alazne
Tipo de documento: artigo
Data de publicação:2023
País:España
Recursos:Universidad del País Vasco
Repositório:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/68161
Acesso em linha:http://hdl.handle.net/10810/68161
Access Level:Acceso aberto
Palavra-chave:LCO
hydrocracking
FCC catalyst
deactivation
gasoline
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spelling Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalystCrespo Briones, IratxePalos Urrutia, RobertoTrueba Fraile, Juan DavidBilbao Elorriaga, JavierArandes Esteban, José MaríaGutiérrez Lorenzo, AlazneLCOhydrocrackingFCC catalystdeactivationgasolineMotivated by the necessity of intensifying the valorization of secondary refinery streams and of extending the life cycle of the catalysts, this study aims to obtain high quality gasoline in the hydrocracking of a pre-hydrotreated light cycle oil (HT-LCO) using noble metals catalysts supported on a spent fluid catalytic cracking (FCC) catalyst. Hydrocracking runs have been carried out in a fixed bed reactor with two different catalysts (Pt/FCC and Pd/FCC) under the following conditions: 320–400 °C; 80 bar; hydrogen to HT-LCO ratio, 1000 NmL mL−1; weight hourly space velocity (WHSV), 4.48 h−1; and time on stream (TOS), 8 h. The results have exposed that 400 °C is the optimal temperature for hydrocracking the HT-LCO, since the yield of gasoline is clearly maximized (yielding up to 80 wt%) at the same time that the formation of gases is minimized. Comparing both catalysts, the Pt/FCC catalyst has offered better performance as its high hydrogenation capacity has allowed for obtaining an isoparaffinic gasoline fraction with a RON of 93.0. These good results lay on two facts that avoid the blocking of the micropores of the zeolite HY by the deposition of coke: (i) the hydrocracking of the coke precursors; and (ii) the matrix of the FCC catalyst where a fraction of the coke is deposited. In this way, after an initial deactivation period, the catalysts have reached a pseudo-stable state with a notorious remaining catalytic activity (higher for the Pt/FCC catalyst).his work has been carried out with the financial support of the Ministry of Science and Innovation of the Spanish Government (grant PID2021-125255OB-I00), the European Union’s ERDF funds and Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Actions (grant No 823745) and the Basque Government (grant IT1645-22). Iratxe Crespo and David Trueba thank the University of the Basque Country UPV/EHU for their PhD grants (PIF 2021 and PIF 2018, respectively). The authors thank for technical and human support provided by SGIker of UPV/EHU and European funding (ERDF and ESF). The authors also acknowledge Petronor refinery for providing the feed and the FCC catalyst used in the work.ElsevierEuropean Commission202420242023info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/68161reponame: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/S0016236122034032info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/es/© 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by- nc/4.0/)Atribución-NoComercial 3.0 Españaoai:addi.ehu.eus:10810/681612026-06-18T09:23:17Z
dc.title.none.fl_str_mv Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
title Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
spellingShingle Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
Crespo Briones, Iratxe
LCO
hydrocracking
FCC catalyst
deactivation
gasoline
title_short Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
title_full Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
title_fullStr Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
title_full_unstemmed Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
title_sort Intensifying gasoline production in the hydrocracking of pre-hydrotreated light cycle oil by means of Pt and Pd supported on a spent FCC catalyst
dc.creator.none.fl_str_mv Crespo Briones, Iratxe
Palos Urrutia, Roberto
Trueba Fraile, Juan David
Bilbao Elorriaga, Javier
Arandes Esteban, José María
Gutiérrez Lorenzo, Alazne
author Crespo Briones, Iratxe
author_facet Crespo Briones, Iratxe
Palos Urrutia, Roberto
Trueba Fraile, Juan David
Bilbao Elorriaga, Javier
Arandes Esteban, José María
Gutiérrez Lorenzo, Alazne
author_role author
author2 Palos Urrutia, Roberto
Trueba Fraile, Juan David
Bilbao Elorriaga, Javier
Arandes Esteban, José María
Gutiérrez Lorenzo, Alazne
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv LCO
hydrocracking
FCC catalyst
deactivation
gasoline
topic LCO
hydrocracking
FCC catalyst
deactivation
gasoline
description Motivated by the necessity of intensifying the valorization of secondary refinery streams and of extending the life cycle of the catalysts, this study aims to obtain high quality gasoline in the hydrocracking of a pre-hydrotreated light cycle oil (HT-LCO) using noble metals catalysts supported on a spent fluid catalytic cracking (FCC) catalyst. Hydrocracking runs have been carried out in a fixed bed reactor with two different catalysts (Pt/FCC and Pd/FCC) under the following conditions: 320–400 °C; 80 bar; hydrogen to HT-LCO ratio, 1000 NmL mL−1; weight hourly space velocity (WHSV), 4.48 h−1; and time on stream (TOS), 8 h. The results have exposed that 400 °C is the optimal temperature for hydrocracking the HT-LCO, since the yield of gasoline is clearly maximized (yielding up to 80 wt%) at the same time that the formation of gases is minimized. Comparing both catalysts, the Pt/FCC catalyst has offered better performance as its high hydrogenation capacity has allowed for obtaining an isoparaffinic gasoline fraction with a RON of 93.0. These good results lay on two facts that avoid the blocking of the micropores of the zeolite HY by the deposition of coke: (i) the hydrocracking of the coke precursors; and (ii) the matrix of the FCC catalyst where a fraction of the coke is deposited. In this way, after an initial deactivation period, the catalysts have reached a pseudo-stable state with a notorious remaining catalytic activity (higher for the Pt/FCC catalyst).
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/68161
url http://hdl.handle.net/10810/68161
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/S0016236122034032
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc/3.0/es/
Atribución-NoComercial 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/3.0/es/
Atribución-NoComercial 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 15,301603

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