Highly selective catalytic hydrodeoxygenation of guaiacol to benzene in continuous operation mode

Gracia, J. ; Ayala-Cortés, A. ; Di Stasi, C. ; Remón, J. (Universidad de Zaragoza) ; Torres, D. ; Pinilla, J.L. ; Suelves, I.

Resumen: Benzene, mostly produced from fossil fuel sources, is an essential chemical to many modern industries. Alternatively to non-renewable methods currently used, the present work explores using fast pyrolysis biomass-derived bio-oils to furnish this valuable platform molecule. Notably, we report for the first time the impact of different operational parameters on the highly selective continuous catalytic hydrodeoxygenation of guaiacol, a bio-oil model compound, into benzene using a Mo2C/CNF-based catalyst. The parametric study includes a first evaluation of the effect of the hydrogen pressure (25, 50 and 75 bar), temperature (300, 325 and 350 °C) and weight hourly space velocity (4 and 10 gorg gcat−1 h−1) on the guaiacol conversion and product distribution, and a subsequent long-term evaluation (30 h on stream) of the catalyst under appropriate processing conditions The experimental results revelated that our Mo2C/CNF was able to achieve a conversion of 90–98% with a relative amount of benzene in the liquid product up to 81% for at least 30 h without any sign of deactivation at 75 bar of H2 and 350 °C, which is a landmark achievement in the conversion of bio-oil derived molecules into platform chemicals.

Idioma: Inglés

DOI: 10.1016/j.fuproc.2024.108064

Año: 2024

Publicado en: Fuel Processing Technology 255 (2024), 108064 [10 pp.]
ISSN: 0378-3820

Financiación: info:eu-repo/grantAgreement/ES/AEI/RYC2021-033368-I
Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/T22-23R
Financiación: info:eu-repo/grantAgreement/ES/DGA/T06-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/IJC-2018-037110-I
Financiación: info:eu-repo/grantAgreement/ES/MICINN/IJC-2020-045553-I
Financiación: info:eu-repo/grantAgreement/ES/MICINN/JDC2022-048765-I
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2020-115053RB-I00/AEI/10.13039/501100011033
Financiación: info:eu-repo/grantAgreement/ES/MICIU/PRE2018-085182
Financiación: info:eu-repo/grantAgreement/ES/MINECO/ENE2017-83854-R

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)