Use of a reforming catalyst for hydrogen production in the carbonization process of torrefied biomass
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2020-11-10
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Abstract
The utilization of charcoal from woody biomass is an efficient way to reduce CO2 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−1, 250◦C, 30 min) and carbonization (3◦C min−1, 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 H2-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 H2 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 H2 can also be produced.
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Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
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Carbonization , Hydrogen , Pyrolysis , Reforming catalyst , Torrefaction , Woody biomass , Catalysis , Physical and Theoretical Chemistry , SDG 7 - Affordable and Clean Energy , SDG 9 - Industry, Innovation, and Infrastructure , SDG 13 - Climate Action , Project ID , info:eu-repo/grantAgreement/EC/FEDER/ENE2017-82250-R/EU/Fabricación y suministro de una planta piloto para ensayos de reacciones fotocatalíticas , Funding Info , This research was funded by the Basque Government through the “SAIOTEK” program, grant number_x000D_SAI13/190 (S-PE13UN126), by University of the Basque Country (UPV/EHU), Spanish Ministry of Economy_x000D_and Innovation and European Union through the European Regional Development Fund (FEDER) (Projects:_x000D_ENE2017-82250-R). The work was also funded by the financing provided to the “Sustainable Process Engineering”_x000D_research group for the 2016-2021 period (reference: GIC 15/13, IT993-16).
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Lopez-Urionabarrenechea , A , Acha , E , Adrados , A , Solar , J , Caballero , B M & de Marco , I 2020 , ' Use of a reforming catalyst for hydrogen production in the carbonization process of torrefied biomass ' , Catalysts , vol. 10 , no. 11 , 1300 , pp. 1-14 . https://doi.org/10.3390/catal10111300 , https://doi.org/10.3390/catal10111300