Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass

The utilization of charcoal from woody biomass is an efficient way to reduce CO<sub>2</sub> emissions from the metallurgical industry. The main aim of this work is to study the charcoal production process from torrefied biomass. For this purpose, torrefaction (3 °C min<sup>−1</s...

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Main Authors: Alexander Lopez-Urionabarrenechea, Esther Acha, Aitziber Adrados, Jon Solar, Blanca María Caballero, Isabel de Marco
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/10/11/1300
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author Alexander Lopez-Urionabarrenechea
Esther Acha
Aitziber Adrados
Jon Solar
Blanca María Caballero
Isabel de Marco
author_facet Alexander Lopez-Urionabarrenechea
Esther Acha
Aitziber Adrados
Jon Solar
Blanca María Caballero
Isabel de Marco
author_sort Alexander Lopez-Urionabarrenechea
collection DOAJ
description The utilization of charcoal from woody biomass is an efficient way to reduce CO<sub>2</sub> emissions from the metallurgical industry. The main aim of this work is to study the charcoal production process from torrefied biomass. For this purpose, torrefaction (3 °C min<sup>−1</sup>, 250 °C, 30 min) and carbonization (3 °C min<sup>−1</sup>, 750 °C, 30 min) experiments of eucalyptus wood were carried out in a 3.5 L tank reactor. In the carbonization experiments, a thermo-catalytic treatment of the vaporized phase was also performed, with the objective of producing less condensates and H<sub>2</sub>-rich gases. The results show that the torrefaction pre-treatment does not affect the chemical properties of charcoal but significantly improves the performance of the carbonization process, where more than 50 wt% of charcoal is obtained. In addition, the thermal and thermo-catalytic treatment of the vaporized phase during the carbonization of torrefied biomass yields better results than in the case of fresh biomass. When torrefied biomass is used as raw material and the reforming catalyst is employed to treat the vapors and gases, a proportion of 71 vol% of H<sub>2</sub> in the gases is achieved, together with very low quantities of condensates (8.0 wt%). This allows designing a carbonization process in which, in addition to charcoal, pure H<sub>2</sub> can also be produced.
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spelling doaj.art-ebd17c5c129542e8a9581d9499e6ee662023-11-20T20:24:59ZengMDPI AGCatalysts2073-43442020-11-011011130010.3390/catal10111300Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied BiomassAlexander Lopez-Urionabarrenechea0Esther Acha1Aitziber Adrados2Jon Solar3Blanca María Caballero4Isabel de Marco5Chemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, SpainChemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, SpainTecnalia, Basque Research and Technology Alliance (BRTA), Astondo Bidea, 700 Derio, SpainChemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, SpainChemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, SpainChemical and Environmental Engineering Department, Faculty of Engineering of Bilbao, University of the Basque Country (UPV/EHU), Plaza Ingeniero Torres Quevedo, 1, 48013 Bilbao, SpainThe utilization of charcoal from woody biomass is an efficient way to reduce CO<sub>2</sub> emissions from the metallurgical industry. The main aim of this work is to study the charcoal production process from torrefied biomass. For this purpose, torrefaction (3 °C min<sup>−1</sup>, 250 °C, 30 min) and carbonization (3 °C min<sup>−1</sup>, 750 °C, 30 min) experiments of eucalyptus wood were carried out in a 3.5 L tank reactor. In the carbonization experiments, a thermo-catalytic treatment of the vaporized phase was also performed, with the objective of producing less condensates and H<sub>2</sub>-rich gases. The results show that the torrefaction pre-treatment does not affect the chemical properties of charcoal but significantly improves the performance of the carbonization process, where more than 50 wt% of charcoal is obtained. In addition, the thermal and thermo-catalytic treatment of the vaporized phase during the carbonization of torrefied biomass yields better results than in the case of fresh biomass. When torrefied biomass is used as raw material and the reforming catalyst is employed to treat the vapors and gases, a proportion of 71 vol% of H<sub>2</sub> in the gases is achieved, together with very low quantities of condensates (8.0 wt%). This allows designing a carbonization process in which, in addition to charcoal, pure H<sub>2</sub> can also be produced.https://www.mdpi.com/2073-4344/10/11/1300torrefactionpyrolysiscarbonizationreforming catalysthydrogenwoody biomass
spellingShingle Alexander Lopez-Urionabarrenechea
Esther Acha
Aitziber Adrados
Jon Solar
Blanca María Caballero
Isabel de Marco
Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass
Catalysts
torrefaction
pyrolysis
carbonization
reforming catalyst
hydrogen
woody biomass
title Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass
title_full Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass
title_fullStr Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass
title_full_unstemmed Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass
title_short Use of a Reforming Catalyst for Hydrogen Production in the Carbonization Process of Torrefied Biomass
title_sort use of a reforming catalyst for hydrogen production in the carbonization process of torrefied biomass
topic torrefaction
pyrolysis
carbonization
reforming catalyst
hydrogen
woody biomass
url https://www.mdpi.com/2073-4344/10/11/1300
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