Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil
The formation, growth and transformation of the carbon residue (coke) deposited on the catalyst during the raw bio-oil hydrodeoxygenation have been studied. These deposits have a great impact on the overall process performance, and they have been formed in accelerated deactivation conditions (450 de...
| Autores: | , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Recursos: | Universidad del País Vasco |
| Repositorio: | Addi. Archivo Digital para la Docencia y la Investigación |
| OAI Identifier: | oai:addi.ehu.eus:10810/50009 |
| Acesso em linha: | http://hdl.handle.net/10810/50009 |
| Access Level: | acceso abierto |
| Palavra-chave: | pyrolysis oil activated carbon kraft lignin coke deactivation biomass transformation pathways cracking hydrotreatment |
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Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oilBonura, GiuseppeFrusteri, FrancescoBilbao Elorriaga, JavierCastaño Sánchez, Pedropyrolysis oilactivated carbonkraft lignincokedeactivationbiomasstransformationpathwayscrackinghydrotreatmentThe formation, growth and transformation of the carbon residue (coke) deposited on the catalyst during the raw bio-oil hydrodeoxygenation have been studied. These deposits have a great impact on the overall process performance, and they have been formed in accelerated deactivation conditions (450 degrees C, 65 bar, space time of 0.09 g(cat) h g(bio-oil)(-1)) using a continuous fixed bed reactor and a FeMoP/HZSM-5 catalyst. Coke deposition causes partial deactivation of the catalyst, which reaches a pseudosteady state of constant activity and also contant yields of interesting chemicals. The evolution of the coke in the transient state has been studied through temperature-programmed oxidation, Raman spectroscopy and elemental analysis. We have identified three different types of coke, whose composition evolves with time on stream towards condensed and stable structures. The assessment of the evolution of the reaction medium composition and the application of the principal component analysis (PCA) methodology have evidenced that the dynamics of coke have three stages: (1) it is controlled by the thermally-induced deposition of thermal lignin; (2) followed by the interconversion into intermediate coke through aging reactions; and (3) it ends up in a pseudosteady state dominated by the formation of catalytic coke species originating from both deoxygenated and carbonized intermediate coke as well as the condensation of aromatics in the reaction medium.This work has been carried out with the financial support of the Ministry of Economy and Competitiveness of the Spanish Government, some co-founded with ERDF funds (CTQ201567425-R, CTQ2016-79646-P), the Basque Government (IT121819), and the European Commission (Horizon H2020-MSCA RISE-2018, Contract No. 823745). Dr Idoia Hita is grateful for her postdoctoral grant awarded by the Department of Education, University and Research of the Basque Government (POS_2015_1_0035).Royal Society of ChemistryHita del Olmo, IdoiaEuropean Commission202120212020info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/50009reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/EC/H2020/823745info:eu-repo/grantAgreement/MINECO/CTQ201567425-R/info:eu-repo/grantAgreement/MINECO/CTQ2016-79646-P/https://pubs-rsc-org.ehu.idm.oclc.org/en/content/articlelanding/2020/SE/D0SE00501K#!divAbstractinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0)Atribución 3.0 Españaoai:addi.ehu.eus:10810/500092026-06-18T09:23:17Z |
| dc.title.none.fl_str_mv |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil |
| title |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil |
| spellingShingle |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil Bonura, Giuseppe pyrolysis oil activated carbon kraft lignin coke deactivation biomass transformation pathways cracking hydrotreatment |
| title_short |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil |
| title_full |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil |
| title_fullStr |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil |
| title_full_unstemmed |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil |
| title_sort |
Dynamics of carbon formation during the catalytic hydrodeoxygenation of raw bio-oil |
| dc.creator.none.fl_str_mv |
Bonura, Giuseppe Frusteri, Francesco Bilbao Elorriaga, Javier Castaño Sánchez, Pedro |
| author |
Bonura, Giuseppe |
| author_facet |
Bonura, Giuseppe Frusteri, Francesco Bilbao Elorriaga, Javier Castaño Sánchez, Pedro |
| author_role |
author |
| author2 |
Frusteri, Francesco Bilbao Elorriaga, Javier Castaño Sánchez, Pedro |
| author2_role |
author author author |
| dc.contributor.none.fl_str_mv |
Hita del Olmo, Idoia European Commission |
| dc.subject.none.fl_str_mv |
pyrolysis oil activated carbon kraft lignin coke deactivation biomass transformation pathways cracking hydrotreatment |
| topic |
pyrolysis oil activated carbon kraft lignin coke deactivation biomass transformation pathways cracking hydrotreatment |
| description |
The formation, growth and transformation of the carbon residue (coke) deposited on the catalyst during the raw bio-oil hydrodeoxygenation have been studied. These deposits have a great impact on the overall process performance, and they have been formed in accelerated deactivation conditions (450 degrees C, 65 bar, space time of 0.09 g(cat) h g(bio-oil)(-1)) using a continuous fixed bed reactor and a FeMoP/HZSM-5 catalyst. Coke deposition causes partial deactivation of the catalyst, which reaches a pseudosteady state of constant activity and also contant yields of interesting chemicals. The evolution of the coke in the transient state has been studied through temperature-programmed oxidation, Raman spectroscopy and elemental analysis. We have identified three different types of coke, whose composition evolves with time on stream towards condensed and stable structures. The assessment of the evolution of the reaction medium composition and the application of the principal component analysis (PCA) methodology have evidenced that the dynamics of coke have three stages: (1) it is controlled by the thermally-induced deposition of thermal lignin; (2) followed by the interconversion into intermediate coke through aging reactions; and (3) it ends up in a pseudosteady state dominated by the formation of catalytic coke species originating from both deoxygenated and carbonized intermediate coke as well as the condensation of aromatics in the reaction medium. |
| 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/10810/50009 |
| url |
http://hdl.handle.net/10810/50009 |
| 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/MINECO/CTQ201567425-R/ info:eu-repo/grantAgreement/MINECO/CTQ2016-79646-P/ https://pubs-rsc-org.ehu.idm.oclc.org/en/content/articlelanding/2020/SE/D0SE00501K#!divAbstract |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/3.0/es/ This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0) Atribución 3.0 España |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
http://creativecommons.org/licenses/by/3.0/es/ This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0) Atribución 3.0 España |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Royal Society of Chemistry |
| publisher.none.fl_str_mv |
Royal Society of Chemistry |
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reponame:Addi. Archivo Digital para la Docencia y la Investigación instname:Universidad del País Vasco |
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Universidad del País Vasco |
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Addi. Archivo Digital para la Docencia y la Investigación |
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Addi. Archivo Digital para la Docencia y la Investigación |
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