Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles

[EN] The performance of fixed and fluidized bed reactors in the steam reforming of biomass fast pyrolysis volatiles was compared, with especial attention paying to the differences observed in catalysts deactivation. The experiments were carried out in continuous regime in a bench scale unit provided...

Descripción completa

Detalles Bibliográficos
Autores: Fernández Sáenz, Enara, Amutio Izaguirre, Maider, Artetxe Uria, Maite, Arregi Joaristi, Aitor, Santamaría Moreno, Laura, López Zabalbeitia, Gartzen, Bilbao Elorriaga, Javier, Olazar Aurrecoechea, Martin
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:10810/49923
Acceso en línea:http://hdl.handle.net/10810/49923
Access Level:acceso abierto
Palabra clave:Hydrogen
pyrolysis
reforming
biomass
Deactivation
fixed bed
fluidized bed
id ES_817849d6d7a22cf0146e885f613cdcbf
oai_identifier_str oai:addi.ehu.eus:10810/49923
network_acronym_str ES
network_name_str España
repository_id_str
spelling Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatilesFernández Sáenz, EnaraAmutio Izaguirre, MaiderArtetxe Uria, MaiteArregi Joaristi, AitorSantamaría Moreno, LauraLópez Zabalbeitia, GartzenBilbao Elorriaga, JavierOlazar Aurrecoechea, MartinHydrogenpyrolysisreformingbiomassDeactivationfixed bedfluidized bed[EN] The performance of fixed and fluidized bed reactors in the steam reforming of biomass fast pyrolysis volatiles was compared, with especial attention paying to the differences observed in catalysts deactivation. The experiments were carried out in continuous regime in a bench scale unit provided with a conical spouted bed for the pyrolysis step. They were carried out on a Ni-Ca/Al2O3 commercial catalyst and under optimum conditions determined in previous studies, i.e., pyrolysis temperature 500 ºC, reforming temperature 600 ºC and a steam/biomass ratio of 4. Moreover, the influence of space time was analysed in both reforming reactors. The fixed bed reactor showed higher initial conversion and H2 yield, as it allowed attaining a H2 yield higher than 90 % with a space time of 10 gcat min gvol-1. However, a space time of 15 gcat min gvol-1 was required in the fluidized bed to obtain a similar H2 yield. Moreover, the fixed bed also led to lower catalyst deactivation. Catalyst deactivation was mainly related to coke deposition, and higher coke contents were observed in the catalysts used in the fluidized bed reactor (1.2 mgCOKE gcat-1 gbiomass-1) than those in the fixed bed one (0.6 mgCOKE gcat-1 gbiomass-1). Therefore, the differences in the performance of the two reactors were analysed and their practical interest was discussed.This work was carried out with the financial support fromSpain’s ministries of Economy and Competitiveness (CTQ2016-75535-R (AEI/FEDER, UE) and Science, Innovation and Universities (RTI2018-101678-B-I00 (MCIU/AEI/FEDER, UE)), the EuropeanUnion’s Horizon 2020 research and innovation programme underthe Marie Skłodowska-Curie grant agreement No. 823745, and theBasque Government (IT1218-19 and KK-2020/00107).ElsevierEuropean Commission202120212020info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/49923reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/823745info:eu-repo/grantAgreement/MCIU/RTI2018-101678-B-I00/info:eu-repo/grantAgreement/MINECO/CTQ2016-75535-R/https://doi.org/10.1016/j.psep.2020.07.039info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/3.0/es/© 2020 Institution of Chemical Engineers. Published by Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseoai:addi.ehu.eus:10810/499232026-06-18T09:23:17Z
dc.title.none.fl_str_mv Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
title Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
spellingShingle Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
Fernández Sáenz, Enara
Hydrogen
pyrolysis
reforming
biomass
Deactivation
fixed bed
fluidized bed
title_short Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
title_full Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
title_fullStr Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
title_full_unstemmed Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
title_sort Assessment of product yields and catalyst deactivation in fixed and fluidized bed reactors in the steam reforming of biomass pyrolysis volatiles
dc.creator.none.fl_str_mv Fernández Sáenz, Enara
Amutio Izaguirre, Maider
Artetxe Uria, Maite
Arregi Joaristi, Aitor
Santamaría Moreno, Laura
López Zabalbeitia, Gartzen
Bilbao Elorriaga, Javier
Olazar Aurrecoechea, Martin
author Fernández Sáenz, Enara
author_facet Fernández Sáenz, Enara
Amutio Izaguirre, Maider
Artetxe Uria, Maite
Arregi Joaristi, Aitor
Santamaría Moreno, Laura
López Zabalbeitia, Gartzen
Bilbao Elorriaga, Javier
Olazar Aurrecoechea, Martin
author_role author
author2 Amutio Izaguirre, Maider
Artetxe Uria, Maite
Arregi Joaristi, Aitor
Santamaría Moreno, Laura
López Zabalbeitia, Gartzen
Bilbao Elorriaga, Javier
Olazar Aurrecoechea, Martin
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
dc.subject.none.fl_str_mv Hydrogen
pyrolysis
reforming
biomass
Deactivation
fixed bed
fluidized bed
topic Hydrogen
pyrolysis
reforming
biomass
Deactivation
fixed bed
fluidized bed
description [EN] The performance of fixed and fluidized bed reactors in the steam reforming of biomass fast pyrolysis volatiles was compared, with especial attention paying to the differences observed in catalysts deactivation. The experiments were carried out in continuous regime in a bench scale unit provided with a conical spouted bed for the pyrolysis step. They were carried out on a Ni-Ca/Al2O3 commercial catalyst and under optimum conditions determined in previous studies, i.e., pyrolysis temperature 500 ºC, reforming temperature 600 ºC and a steam/biomass ratio of 4. Moreover, the influence of space time was analysed in both reforming reactors. The fixed bed reactor showed higher initial conversion and H2 yield, as it allowed attaining a H2 yield higher than 90 % with a space time of 10 gcat min gvol-1. However, a space time of 15 gcat min gvol-1 was required in the fluidized bed to obtain a similar H2 yield. Moreover, the fixed bed also led to lower catalyst deactivation. Catalyst deactivation was mainly related to coke deposition, and higher coke contents were observed in the catalysts used in the fluidized bed reactor (1.2 mgCOKE gcat-1 gbiomass-1) than those in the fixed bed one (0.6 mgCOKE gcat-1 gbiomass-1). Therefore, the differences in the performance of the two reactors were analysed and their practical interest was discussed.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/49923
url http://hdl.handle.net/10810/49923
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/MCIU/RTI2018-101678-B-I00/
info:eu-repo/grantAgreement/MINECO/CTQ2016-75535-R/
https://doi.org/10.1016/j.psep.2020.07.039
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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_ 1869411975936606208
score 15.301603

Similares en LA Referencia