Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins

The effect of the ZrO2 content on the performance (activity, selectivity, stability) of In2O3-ZrO2 catalyst has been studied on the hydrogenation of CO2/CO mixtures. This effect is a key feature for the viability of using In2O3-ZrO2/SAPO-34 tandem catalysts for the direct conversion of CO2 and synga...

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Autores: Portillo Bazaco, Ander, Ateka Bilbao, Ainara, Ereña Loizaga, Javier, Bilbao Elorriaga, Javier, Aguayo Urquijo, Andrés Tomás
Tipo de recurso: artículo
Fecha de publicación:2022
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/57842
Acceso en línea:http://hdl.handle.net/10810/57842
Access Level:acceso abierto
Palabra clave:CO2 valorization
syngas
in2O3 & ndash
ZrO2 catalyst
olefins
oxygenates
catalyst deactivation
methanol synthesis
dimethyl ether
hydrogenation
oxide
sapo-34
gasification
selectivity
mechanism
zirconium
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spelling Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefinsPortillo Bazaco, AnderAteka Bilbao, AinaraEreña Loizaga, JavierBilbao Elorriaga, JavierAguayo Urquijo, Andrés TomásCO2 valorizationsyngasin2O3 & ndashZrO2 catalystolefinsoxygenatescatalyst deactivationmethanol synthesisdimethyl etherhydrogenationsyngasoxidesapo-34gasificationselectivitymechanismzirconiumThe effect of the ZrO2 content on the performance (activity, selectivity, stability) of In2O3-ZrO2 catalyst has been studied on the hydrogenation of CO2/CO mixtures. This effect is a key feature for the viability of using In2O3-ZrO2/SAPO-34 tandem catalysts for the direct conversion of CO2 and syngas into olefins via oxygenates as intermediates. The interest of co-feeding syngas together with CO2 resides in jointly valorizing syngas derived from biomass or wastes (via gasification) and supplying the required H-2. The experiments of methanol synthesis and direct synthesis of olefins, with In2O3-ZrO2 and In2O3-ZrO2/SAPO-34 catalysts, respectively, have been carried out under the appropriate conditions for the direct olefins synthesis (400 ?, 30 bar, H-2/COX ratio = 3) in an isothermal fixed bed reactor at low space time values (kinetic conditions) to evaluate the behavior and deactivation of the catalysts. The Zr/In ratio of 1/2 favors the conversion of CO2 and COX, attaining good oxygenates selectivity, and prevents the sintering attributable to the over-reduction of the In2O3 (more significant for syngas feeds). The improvement is more remarkable in the direct olefins synthesis, where the thermodynamic equilibrium of methanol formation is displaced, and methanation suppressed (in a greater extent for feeds with high CO content). With the In2O3-ZrO2/SAPO-34 tandem catalysts, the conversion of COx almost 5 folds respect oxygenates synthesis with In2O3-ZrO2 catalyst, meaning the yield of the target products boosts from ~0.5% of oxygenates to > 3% of olefins (selectivity > 70%) for mixtures of CO2/COX of 0.5, where an optimum performance has been obtained.This work has been carried out with the financial support of the Ministry of Science, Innovation and Universities of the Spanish Government (PID2019-108448RB-100); the Basque Government (Project IT1645-22), the European Regional Development Funds (ERDF) and the European Commission (HORIZON H2020-MSCA RISE-2018. Contract No. 823745). A. Portillo is grateful for the grateful for the Ph.D. grant from the Ministry of Science, Innovation and Universities of the Spanish Government (BES2017-081135). The authors thank for technical and human support provided by SGIker (UPV/EHU).Elsevier202220222022info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/57842reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MICINN/PID2019-108448RB-100/info:eu-repo/grantAgreement/EC/H2020/823745https://www.sciencedirect.com/science/article/pii/S0301479722009021?via%3Dihubinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/2022 The Authors. Published by Elsevier Ltd. 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:10810/578422026-06-18T09:23:17Z
dc.title.none.fl_str_mv Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
title Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
spellingShingle Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
Portillo Bazaco, Ander
CO2 valorization
syngas
in2O3 & ndash
ZrO2 catalyst
olefins
oxygenates
catalyst deactivation
methanol synthesis
dimethyl ether
hydrogenation
syngas
oxide
sapo-34
gasification
selectivity
mechanism
zirconium
title_short Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
title_full Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
title_fullStr Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
title_full_unstemmed Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
title_sort Role of Zr loading into In2O3 catalysts for the direct conversion of CO2/CO mixtures into light olefins
dc.creator.none.fl_str_mv Portillo Bazaco, Ander
Ateka Bilbao, Ainara
Ereña Loizaga, Javier
Bilbao Elorriaga, Javier
Aguayo Urquijo, Andrés Tomás
author Portillo Bazaco, Ander
author_facet Portillo Bazaco, Ander
Ateka Bilbao, Ainara
Ereña Loizaga, Javier
Bilbao Elorriaga, Javier
Aguayo Urquijo, Andrés Tomás
author_role author
author2 Ateka Bilbao, Ainara
Ereña Loizaga, Javier
Bilbao Elorriaga, Javier
Aguayo Urquijo, Andrés Tomás
author2_role author
author
author
author
dc.subject.none.fl_str_mv CO2 valorization
syngas
in2O3 & ndash
ZrO2 catalyst
olefins
oxygenates
catalyst deactivation
methanol synthesis
dimethyl ether
hydrogenation
syngas
oxide
sapo-34
gasification
selectivity
mechanism
zirconium
topic CO2 valorization
syngas
in2O3 & ndash
ZrO2 catalyst
olefins
oxygenates
catalyst deactivation
methanol synthesis
dimethyl ether
hydrogenation
syngas
oxide
sapo-34
gasification
selectivity
mechanism
zirconium
description The effect of the ZrO2 content on the performance (activity, selectivity, stability) of In2O3-ZrO2 catalyst has been studied on the hydrogenation of CO2/CO mixtures. This effect is a key feature for the viability of using In2O3-ZrO2/SAPO-34 tandem catalysts for the direct conversion of CO2 and syngas into olefins via oxygenates as intermediates. The interest of co-feeding syngas together with CO2 resides in jointly valorizing syngas derived from biomass or wastes (via gasification) and supplying the required H-2. The experiments of methanol synthesis and direct synthesis of olefins, with In2O3-ZrO2 and In2O3-ZrO2/SAPO-34 catalysts, respectively, have been carried out under the appropriate conditions for the direct olefins synthesis (400 ?, 30 bar, H-2/COX ratio = 3) in an isothermal fixed bed reactor at low space time values (kinetic conditions) to evaluate the behavior and deactivation of the catalysts. The Zr/In ratio of 1/2 favors the conversion of CO2 and COX, attaining good oxygenates selectivity, and prevents the sintering attributable to the over-reduction of the In2O3 (more significant for syngas feeds). The improvement is more remarkable in the direct olefins synthesis, where the thermodynamic equilibrium of methanol formation is displaced, and methanation suppressed (in a greater extent for feeds with high CO content). With the In2O3-ZrO2/SAPO-34 tandem catalysts, the conversion of COx almost 5 folds respect oxygenates synthesis with In2O3-ZrO2 catalyst, meaning the yield of the target products boosts from ~0.5% of oxygenates to > 3% of olefins (selectivity > 70%) for mixtures of CO2/COX of 0.5, where an optimum performance has been obtained.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/57842
url http://hdl.handle.net/10810/57842
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN/PID2019-108448RB-100/
info:eu-repo/grantAgreement/EC/H2020/823745
https://www.sciencedirect.com/science/article/pii/S0301479722009021?via%3Dihub
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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