dc.contributor.author | García Gómez, Naiara | |
dc.contributor.author | Valecillos Díaz, José del Rosario | |
dc.contributor.author | Remiro Eguskiza, Aingeru | |
dc.contributor.author | Valle Pascual, Beatriz | |
dc.contributor.author | Bilbao Elorriaga, Javier | |
dc.contributor.author | Gayubo Cazorla, Ana Guadalupe | |
dc.date.accessioned | 2021-12-01T09:00:15Z | |
dc.date.available | 2021-12-01T09:00:15Z | |
dc.date.issued | 2021-11-15 | |
dc.identifier.citation | Applied Catalysis B: Environmental 297 : (2021) // Article ID 120445 | es_ES |
dc.identifier.issn | 0926-3373 | |
dc.identifier.issn | 1873-3883 | |
dc.identifier.uri | http://hdl.handle.net/10810/54239 | |
dc.description.abstract | [EN]The steam reforming of bio-oil is a promising and economically feasible technology for the sustainable H-2 production, yet with the main challenge of designing highly active and stable catalysts. This work aimed to study the deactivation mechanism of a NiAl2O4 spinel derived catalyst, the role of Ni and alumina sites in this mechanism and the appropriate reaction conditions to attenuate deactivation. The reaction tests were carried out in a fluidized bed reactor with prior separation of the pyrolytic lignin. The fresh or used catalysts were characterized using X-ray diffraction, temperature-programmed oxidation, X-ray photoelectron spectroscopy, scanning electron microscopy combined with energy dispersive X-ray spectroscopy, and Raman spectroscopy. For steam/carbon ratios > 3.0, space time above 0.075 h and temperature between 600-700 degrees C, high initial hydrogen yield is obtained (in the 85-90 % range) with CO yield near 20 %, CH4 yield below 5 % and negligible initial yield of hydrocarbons. The catalyst is more stable at 600 degrees C, with coke formation preferentially located on Ni sites inside the catalyst particle. Increasing the temperature favors the coke development and consequent deposition on the alumina support, leading to a rapid catalyst deactivation because the limited availability of Ni and alumina sites. These results contribute to understand the phenomenon of catalyst deactivation in the steam reforming of bio-oil and set appropriate reaction conditions to mitigate this problem with a NiAl2O4 spinel derived catalyst. | es_ES |
dc.description.sponsorship | This work was carried out with the financial support of the Department of Education, Universities and Investigation of the Basque Government (IT1218-19), theEuropean Commission(HORIZON H2020MSCA RISE 2018. Contract No. 823745), the Ministry of Economy and Competitiveness of the Spanish Government jointly with European Regional Development Funds(AEI/FEDER, UE) (Projects CTQ201568883-R and RTI2018-100771-B-I00), and PhD grant (BES-2016078132) for N. Garcia-Gomez. The authors thank for technical and human support provided by SGIker (UPV/EHU/ERDF, EU). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/823745 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/CTQ201568883-R | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/RTI2018-100771-B-I00 | es_ES |
dc.relation | info:eu-repo/grantAgreement/MICINN/BES-2016078132 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | bio-oil steam reforming | es_ES |
dc.subject | hydrogen | es_ES |
dc.subject | NiAl2O4 spinel | es_ES |
dc.subject | deactivation | es_ES |
dc.subject | coke deposition | es_ES |
dc.title | Effect of reaction conditions on the deactivation by coke of a NiAl2O4 spinel derived catalyst in the steam reforming of bio-oil | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2021 The Author(s). This is an open access article under the CC BY license | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0926337321005713?via%3Dihub | es_ES |
dc.identifier.doi | 10.1016/j.apcatb.2021.120445 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Ingeniería química | es_ES |
dc.departamentoeu | Ingeniaritza kimikoa | es_ES |