Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst

Aqueous phase reforming was studied for the valorization to hydrogen of the aqueous fraction of bio-oil from lignocellulosic biomass pyrolysis. Aqueous phase reforming was carried out at 220 °C with a 3 % wt. Pt/carbon catalyst and an aqueous fraction of bio-oil feed containing 1 % wt. of organic ma...

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Authors: Justicia González, Jéssica, Baeza Herrera, José Alberto, Calvo Hernández, Luisa, Heras Muñoz, Francisco, Gilarranz Redondo, Miguel Ángel
Format: article
Publication Date:2023
Country:España
Institution:Universidad Autónoma de Madrid
Repository:Biblos-e Archivo. Repositorio Institucional de la UAM
Language:English
OAI Identifier:oai:repositorio.uam.es:10486/708893
Online Access:http://hdl.handle.net/10486/708893
https://dx.doi.org/10.1016/j.cej.2023.146860
Access Level:Open access
Keyword:Aqueous Phase Reforming
Green Hydrogen
Pt/C Catalyst
Bio-Oil
Lignocellulosic Biomass
Structure–Activity Relationship
Química
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spelling Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst Justicia González, Jéssica Baeza Herrera, José Alberto Calvo Hernández, Luisa Heras Muñoz, Francisco Gilarranz Redondo, Miguel Ángel Aqueous Phase Reforming Green Hydrogen Pt/C Catalyst Bio-Oil Lignocellulosic Biomass Structure–Activity Relationship Química Aqueous phase reforming was studied for the valorization to hydrogen of the aqueous fraction of bio-oil from lignocellulosic biomass pyrolysis. Aqueous phase reforming was carried out at 220 °C with a 3 % wt. Pt/carbon catalyst and an aqueous fraction of bio-oil feed containing 1 % wt. of organic matter. Binary and multicomponent mixtures representing aqueous fractions of bio-oil were studied. Strong hydrogen production dependence on aqueous fraction of bio-oil composition was evidenced. Higher processability was obtained for aqueous fractions of bio-oil rich in levoglucosan and hydroxyacetone, reaching a hydrogen production close to 40 mmol per gram of organic carbon, whereas furfural and acetic acid hampered reforming. A significant influence of minority components such as methanol and, particularly, formic acid, was observed. These components improved reforming of the whole multicomponent mixture, showing that blending with biorefinery fractions rich in them can improve the applicability of aqueous phase reforming. The catalyst exhibited stable activity and hydrogen production after 5 reaction cycles and more than 20 h. An increase in selectivity was observed during cycles 2 and 3, which was studied by characterization of fresh and used catalysts to show structure-selectivity relationships. No significant variation of Pt2+/Pt0 and metal particle mean diameter were observed, but Pt nanoparticles underwent morphological changes leading to higher prevalence of low coordination sites, in particular step-edge sites on the particle surface, resulting in higher hydrogen production. Temperature programmed desorption and oxidation analysis showed a cumulative deposition of reaction byproducts on the catalyst surface that contributed to loss of activity This work was supported by Community of Madrid (research network BIO3, P2018/EMT-4344) and Ministry of Science and Innovation (Recovery, Transformation and Resilience Plan, project HYDROCIRCLE, TED2021-130054B-I00). Jessica Justicia thanks supporting from Ministry of Science, Innovation and University trough the project WASTEVALOR (PID2019-108445RB-I00) Elsevier http://hdl.handle.net/10486/708893 https://dx.doi.org/10.1016/j.cej.2023.146860
title Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst
spellingShingle Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst
Justicia González, Jéssica
Aqueous Phase Reforming
Green Hydrogen
Pt/C Catalyst
Bio-Oil
Lignocellulosic Biomass
Structure–Activity Relationship
Química
title_short Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst
title_full Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst
title_fullStr Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst
title_full_unstemmed Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst
title_sort Valorization to hydrogen of bio-oil aqueous fractions from lignocellulosic biomass pyrolysis by aqueous phase reforming over Pt/C catalyst
author Justicia González, Jéssica
author_facet Justicia González, Jéssica
Baeza Herrera, José Alberto
Calvo Hernández, Luisa
Heras Muñoz, Francisco
Gilarranz Redondo, Miguel Ángel
author_role author
author2 Baeza Herrera, José Alberto
Calvo Hernández, Luisa
Heras Muñoz, Francisco
Gilarranz Redondo, Miguel Ángel
author2_role author
author
author
author
topic Aqueous Phase Reforming
Green Hydrogen
Pt/C Catalyst
Bio-Oil
Lignocellulosic Biomass
Structure–Activity Relationship
Química
topic_facet Aqueous Phase Reforming
Green Hydrogen
Pt/C Catalyst
Bio-Oil
Lignocellulosic Biomass
Structure–Activity Relationship
Química
description Aqueous phase reforming was studied for the valorization to hydrogen of the aqueous fraction of bio-oil from lignocellulosic biomass pyrolysis. Aqueous phase reforming was carried out at 220 °C with a 3 % wt. Pt/carbon catalyst and an aqueous fraction of bio-oil feed containing 1 % wt. of organic matter. Binary and multicomponent mixtures representing aqueous fractions of bio-oil were studied. Strong hydrogen production dependence on aqueous fraction of bio-oil composition was evidenced. Higher processability was obtained for aqueous fractions of bio-oil rich in levoglucosan and hydroxyacetone, reaching a hydrogen production close to 40 mmol per gram of organic carbon, whereas furfural and acetic acid hampered reforming. A significant influence of minority components such as methanol and, particularly, formic acid, was observed. These components improved reforming of the whole multicomponent mixture, showing that blending with biorefinery fractions rich in them can improve the applicability of aqueous phase reforming. The catalyst exhibited stable activity and hydrogen production after 5 reaction cycles and more than 20 h. An increase in selectivity was observed during cycles 2 and 3, which was studied by characterization of fresh and used catalysts to show structure-selectivity relationships. No significant variation of Pt2+/Pt0 and metal particle mean diameter were observed, but Pt nanoparticles underwent morphological changes leading to higher prevalence of low coordination sites, in particular step-edge sites on the particle surface, resulting in higher hydrogen production. Temperature programmed desorption and oxidation analysis showed a cumulative deposition of reaction byproducts on the catalyst surface that contributed to loss of activity
publishDate 2023
format article
url http://hdl.handle.net/10486/708893
https://dx.doi.org/10.1016/j.cej.2023.146860
language eng
eu_rights_str_mv openAccess
publisher Elsevier
institution Universidad Autónoma de Madrid
collection Biblos-e Archivo. Repositorio Institucional de la UAM
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
instname_str Universidad Autónoma de Madrid
_version_ 1878432919959109632
publishDateSort 2023
author_browse Baeza Herrera, José Alberto
Calvo Hernández, Luisa
Gilarranz Redondo, Miguel Ángel
Heras Muñoz, Francisco
Justicia González, Jéssica
publisherStr Elsevier
score 6,9303427

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