Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil

Deactivation of a bulk catalyst derived from NiAl2O4 spinel during the oxidative steam reforming (OSR) of raw bio-oil has been studied. The experiments were performed in a continuous system with two units in series: a thermal treatment unit at 500 ºC for the controlled deposition of pyrolytic lignin...

Descripción completa

Detalles Bibliográficos
Autores: Arandia Gutiérrez, Aitor, Remiro Eguskiza, Aingeru, Oar Arteta, Lide, Bilbao Elorriaga, Javier, Gayubo Cazorla, Ana Guadalupe
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/65466
Acceso en línea:http://hdl.handle.net/10810/65466
Access Level:acceso abierto
Palabra clave:bio-oil
hydrogen
oxidative steam reforming
Ni catalyst
deactivation
coke
id ES_b00bd5debbf4b8e049fcff7697d41fcd
oai_identifier_str oai:addi.ehu.eus:10810/65466
network_acronym_str ES
network_name_str España
repository_id_str
spelling Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oilArandia Gutiérrez, AitorRemiro Eguskiza, AingeruOar Arteta, LideBilbao Elorriaga, JavierGayubo Cazorla, Ana Guadalupebio-oilhydrogenoxidative steam reformingNi catalystdeactivationcokeDeactivation of a bulk catalyst derived from NiAl2O4 spinel during the oxidative steam reforming (OSR) of raw bio-oil has been studied. The experiments were performed in a continuous system with two units in series: a thermal treatment unit at 500 ºC for the controlled deposition of pyrolytic lignin, and a fluidized bed reactor (700 ºC; S/C, 6; O/C, 0.34; space time, 0.15 gcatalysth·gbio-oil-1; time on stream, 1, 2, 4 and 6 h) for the OSR of the remaining oxygenates. The deactivation affects the reforming of bio-oil oxygenates according to their reactivity (from lower to higher), with the reforming of phenols being rapidly affected. The causes of deactivation are: i) coke deposition on the Ni0 sites and on the Al2O3 support (6 wt % of each coke type after 6 h on stream), and; ii) sintering of Ni0 crystals (with an increase in crystal size from 10.8 to 17.7 nm (measured by TEM)). The catalyst deactivation rate increases with time on stream, with the bio-oil oxygenates being the main coke precursorshis work was carried out with the financial support of the Department of Education Universities and Investigation of the Basque Government (IT1218-19), the European Commission (HORIZON H2020-MSCA RISE 2018. Contract No. 823745) and the Ministry of Economy and Competitiveness of the Spanish Government jointly with the European Regional Development Funds (AEI/FEDER, UE) (Projects CTQ2015-68883-R and RTI2018-100771-B-I00) and Ph.D. grant BES- 2013-063639 for A. Arandia).ElsevierEuropean Commission202420242020info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/65466reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO/CTQ2015-68883-R/info:eu-repo/grantAgreement/MINECO/RTI2018-100771-B-I00/info:eu-repo/grantAgreement/EC/H2020/823745https://www.sciencedirect.com/science/article/pii/S0016236120309911info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/© 2020 Elsevier under CC BY-NC-ND licenseoai:addi.ehu.eus:10810/654662026-06-18T09:23:17Z
dc.title.none.fl_str_mv Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
title Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
spellingShingle Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
Arandia Gutiérrez, Aitor
bio-oil
hydrogen
oxidative steam reforming
Ni catalyst
deactivation
coke
title_short Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
title_full Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
title_fullStr Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
title_full_unstemmed Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
title_sort Deactivation of Ni spinel derived catalyst during the oxidative steam reforming of raw bio-oil
dc.creator.none.fl_str_mv Arandia Gutiérrez, Aitor
Remiro Eguskiza, Aingeru
Oar Arteta, Lide
Bilbao Elorriaga, Javier
Gayubo Cazorla, Ana Guadalupe
author Arandia Gutiérrez, Aitor
author_facet Arandia Gutiérrez, Aitor
Remiro Eguskiza, Aingeru
Oar Arteta, Lide
Bilbao Elorriaga, Javier
Gayubo Cazorla, Ana Guadalupe
author_role author
author2 Remiro Eguskiza, Aingeru
Oar Arteta, Lide
Bilbao Elorriaga, Javier
Gayubo Cazorla, Ana Guadalupe
author2_role author
author
author
author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv bio-oil
hydrogen
oxidative steam reforming
Ni catalyst
deactivation
coke
topic bio-oil
hydrogen
oxidative steam reforming
Ni catalyst
deactivation
coke
description Deactivation of a bulk catalyst derived from NiAl2O4 spinel during the oxidative steam reforming (OSR) of raw bio-oil has been studied. The experiments were performed in a continuous system with two units in series: a thermal treatment unit at 500 ºC for the controlled deposition of pyrolytic lignin, and a fluidized bed reactor (700 ºC; S/C, 6; O/C, 0.34; space time, 0.15 gcatalysth·gbio-oil-1; time on stream, 1, 2, 4 and 6 h) for the OSR of the remaining oxygenates. The deactivation affects the reforming of bio-oil oxygenates according to their reactivity (from lower to higher), with the reforming of phenols being rapidly affected. The causes of deactivation are: i) coke deposition on the Ni0 sites and on the Al2O3 support (6 wt % of each coke type after 6 h on stream), and; ii) sintering of Ni0 crystals (with an increase in crystal size from 10.8 to 17.7 nm (measured by TEM)). The catalyst deactivation rate increases with time on stream, with the bio-oil oxygenates being the main coke precursors
publishDate 2020
dc.date.none.fl_str_mv 2020
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/10810/65466
url http://hdl.handle.net/10810/65466
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/CTQ2015-68883-R/
info:eu-repo/grantAgreement/MINECO/RTI2018-100771-B-I00/
info:eu-repo/grantAgreement/EC/H2020/823745
https://www.sciencedirect.com/science/article/pii/S0016236120309911
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
© 2020 Elsevier under CC BY-NC-ND license
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
© 2020 Elsevier under CC BY-NC-ND license
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
_version_ 1869416755916439552
score 15.300724

Similares en LA Referencia