English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/180906
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Towards a sustainable bio-fuels production from lignocellulosic bio-oils: Influence of operating conditions on the hydrodeoxygenation of guaiacol over a Mo2C/CNF catalyst

AuthorsRemón, J.; Ochoa, Elba; Foguet, Carlos; Pinilla Ibarz, José Luis ; Suelves Laiglesia, Isabel
Mo2C/CNF catalysts
Issue Date9-Apr-2019
CitationFuel Processing Technology 191: 111-120 (2019)
AbstractThis work firstly provides a thorough insight into the effects of the operating conditions (catalyst loading, initial H2 pressure temperature, reaction time, H2/guaiacol ratio and liquid reaction volume) on the hydrodeoxygenation (HDO) of guaiacol over a Mo2C/CNF catalyst. Under the operating condition tested, gas and solid formation was negligible and guaiacol was primary converted to different liquid products, including non-deoxygenated (0-oxy), mono-deoxygenated (1-oxy) and fully deoxygenated (2-oxy) compounds, together with high molecular weight soluble oligomers. An increase in the catalyst loading increased the guaiacol conversion and HDO efficiency, augmenting the proportions of HDO products. Among these species, the progressive transformation of 1-oxy compounds into 2-oxy species was kinetically and thermodynamically controlled by the catalyst loading and the amount of H2 dissolved in the liquid medium, respectively. Augmenting the H2 pressure increased the H2 availability in the liquid, which led to increases over time in the guaiacol conversion and HDO efficiency, thus promoting the production of HDO products and facilitating the transformation of guaiacol into fully de-oxygenated products. This increase depended on the reaction volume, with more pronounced variations occurring for a small than for a large volume due to the greater variations occurring in the H2/guaiacol ratio for the former than the latter. The temperature exerted a kinetic promoting effect together with a thermodynamic inhibitory influence, as some of the reactions involved were not thermodynamically favoured at high temperature. Therefore, the detailed analysis included in this work brings novel information on guaiacol HDO, which can help to establish the basis for catalysts development and reactors design to achieve a sustainable bio-fuels production from lignocellulosic bio-oils.
Description5 Figuras.- Tablas suplementarias disponibles en línea en la página web del editor.
Publisher version (URL)http://dx.doi.org/10.1016/j.fuproc.2019.04.008
Appears in Collections:(ICB) Artículos
Files in This Item:
File Description SizeFormat 
FuelProcessTech_191_2019_111-120.pdf Embargoed until April 9, 20211,3 MBAdobe PDFThumbnail
View/Open    Request a copy
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.