Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil

"Four nickel-based catalysts are synthesized by wet impregnation and evaluated for the hydrotreatment/hydrodeoxygenation of beech wood fast-pyrolysis bio-oil. Parameters such as elemental analysis, pH value, and water content, as well as the heating value of the upgraded bio-oils are considere...

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Autores principales: Schmitt, Caroline Carriel, Gagliardi Reolon, María Belén, Zimmermann, Michael, Raffelt, Klaus, Grunwaldt, Jan-Dierk, Dhamen, Nicolaus
Formato: Artículos de Publicaciones Periódicas publishedVersion
Lenguaje:Inglés
Publicado: 2019
Materias:
CATALISIS
NIQUEL
REACCIONES QUIMICAS
BIOCOMBUSTIBLES
HAYA
MADERA
Acceso en línea:http://ri.itba.edu.ar/handle/123456789/1581
Aporte de:
Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA) de Instituto Tecnológico de Buenos Aires (ITBA)
id I32-R138-123456789-1581
record_format dspace
spelling I32-R138-123456789-15812022-12-07T13:07:02Z Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil Schmitt, Caroline Carriel Gagliardi Reolon, María Belén Zimmermann, Michael Raffelt, Klaus Grunwaldt, Jan-Dierk Dhamen, Nicolaus CATALISIS NIQUEL REACCIONES QUIMICAS BIOCOMBUSTIBLES HAYA MADERA "Four nickel-based catalysts are synthesized by wet impregnation and evaluated for the hydrotreatment/hydrodeoxygenation of beech wood fast-pyrolysis bio-oil. Parameters such as elemental analysis, pH value, and water content, as well as the heating value of the upgraded bio-oils are considered for the evaluation of the catalysts’ activity and catalyst reuse in cycles of hydrodeoxygenation after regeneration. The reduction temperature, selectivity and hydrogen consumption are distinct among them, although all catalysts tested produce upgraded bio-oils with reduced oxygen concentration, lower water content and higher energy density. Ni/SiO2, in particular, can remove more than 50% of the oxygen content and reduce the water content by more than 80%, with low coke and gas formation. The evaluation over four consecutive hydrotreatment reactions and catalyst regeneration shows a slightly reduced hydrodeoxygenation activity of Ni/SiO2, mainly due to deactivation caused by sintering and adsorption of poisoning substances, such as sulfur. Following the fourth catalyst reuse, the upgraded bio-oil shows 43% less oxygen in comparison to the feedstock and properties comparable to the upgraded bio-oil obtained with the fresh catalyst. Hence, nickel-based catalysts are promising for improving hardwood fast-pyrolysis bio-oil properties, especially monometallic nickel catalysts supported on silica." 2019-05-20T18:13:19Z 2019-05-20T18:13:19Z 2018-10 Artículos de Publicaciones Periódicas info:eu-repo/semantics/publishedVersion 2073-4344 http://ri.itba.edu.ar/handle/123456789/1581 en info:eu-repo/semantics/reference/doi/10.3390/catal8100449 info:eu-repo/grantAgreement/Universität Heidel­berg/BBW ForWerts Graduate Program/GE. Heidelberg info:eu-repo/grantAgreement/CNPq/BR. Brasilia info:eu-repo/grantAgreement/UFPB/BEMUNDUS/BR. Parabaía info:eu-repo/semantics/reference/doi:10.3390/catal8100449 https://creativecommons.org/licenses/by/4.0/ application/pdf
institution Instituto Tecnológico de Buenos Aires (ITBA)
institution_str I-32
repository_str R-138
collection Repositorio Institucional Instituto Tecnológico de Buenos Aires (ITBA)
language Inglés
topic CATALISIS
NIQUEL
REACCIONES QUIMICAS
BIOCOMBUSTIBLES
HAYA
MADERA
spellingShingle CATALISIS
NIQUEL
REACCIONES QUIMICAS
BIOCOMBUSTIBLES
HAYA
MADERA
Schmitt, Caroline Carriel
Gagliardi Reolon, María Belén
Zimmermann, Michael
Raffelt, Klaus
Grunwaldt, Jan-Dierk
Dhamen, Nicolaus
Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil
topic_facet CATALISIS
NIQUEL
REACCIONES QUIMICAS
BIOCOMBUSTIBLES
HAYA
MADERA
description "Four nickel-based catalysts are synthesized by wet impregnation and evaluated for the hydrotreatment/hydrodeoxygenation of beech wood fast-pyrolysis bio-oil. Parameters such as elemental analysis, pH value, and water content, as well as the heating value of the upgraded bio-oils are considered for the evaluation of the catalysts’ activity and catalyst reuse in cycles of hydrodeoxygenation after regeneration. The reduction temperature, selectivity and hydrogen consumption are distinct among them, although all catalysts tested produce upgraded bio-oils with reduced oxygen concentration, lower water content and higher energy density. Ni/SiO2, in particular, can remove more than 50% of the oxygen content and reduce the water content by more than 80%, with low coke and gas formation. The evaluation over four consecutive hydrotreatment reactions and catalyst regeneration shows a slightly reduced hydrodeoxygenation activity of Ni/SiO2, mainly due to deactivation caused by sintering and adsorption of poisoning substances, such as sulfur. Following the fourth catalyst reuse, the upgraded bio-oil shows 43% less oxygen in comparison to the feedstock and properties comparable to the upgraded bio-oil obtained with the fresh catalyst. Hence, nickel-based catalysts are promising for improving hardwood fast-pyrolysis bio-oil properties, especially monometallic nickel catalysts supported on silica."
format Artículos de Publicaciones Periódicas
publishedVersion
author Schmitt, Caroline Carriel
Gagliardi Reolon, María Belén
Zimmermann, Michael
Raffelt, Klaus
Grunwaldt, Jan-Dierk
Dhamen, Nicolaus
author_facet Schmitt, Caroline Carriel
Gagliardi Reolon, María Belén
Zimmermann, Michael
Raffelt, Klaus
Grunwaldt, Jan-Dierk
Dhamen, Nicolaus
author_sort Schmitt, Caroline Carriel
title Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil
title_short Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil
title_full Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil
title_fullStr Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil
title_full_unstemmed Synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil
title_sort synthesis and regeneration of nickel-based catalysts for hydrodeoxygenation of beech wood fast pyrolysis bio-oil
publishDate 2019
url http://ri.itba.edu.ar/handle/123456789/1581
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AT gagliardireolonmariabelen synthesisandregenerationofnickelbasedcatalystsforhydrodeoxygenationofbeechwoodfastpyrolysisbiooil
AT zimmermannmichael synthesisandregenerationofnickelbasedcatalystsforhydrodeoxygenationofbeechwoodfastpyrolysisbiooil
AT raffeltklaus synthesisandregenerationofnickelbasedcatalystsforhydrodeoxygenationofbeechwoodfastpyrolysisbiooil
AT grunwaldtjandierk synthesisandregenerationofnickelbasedcatalystsforhydrodeoxygenationofbeechwoodfastpyrolysisbiooil
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