Titre :

SBA-15 supported Ni-Cu catalysts for hydrodeoxygenation of m-cresol to toluene

Auteur(s) :

Deplazes, Roger [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Abreu Teles, Camila [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Ciotonea, Carmen [Auteur]
Unité de Chimie Environnementale et Interactions sur le Vivant [UCEIV]
Simon, Pardis [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
El Rassi, Elias [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Dhainaut, Jérémy [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Marinova, Maya [Auteur]
Institut Michel Eugène Chevreul - FR 2638 [IMEC]
Canilho, Nadia [Auteur]
Laboratoire Lorrain de Chimie Moléculaire [L2CM]
Richard, Frédéric [Auteur]
Institut de chimie des milieux et matériaux de Poitiers [UMR 7285] [IC2MP [Poitiers]]
Royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]

Titre de la revue :

ChemSusChem

Nom court de la revue :

ChemSusChem

Pagination :

e202400685

Éditeur :

ChemPubSoc Europe/Wiley

Date de publication :

2024-07-14

ISSN :

1864-564X

Mot(s)-clé(s) en anglais :

Lignin
HDO
m-cresol
nickel
copper
SBA-15

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

Amidst concerns over fossil fuel dependency and environmental sustainability, the utilization of biomass-derived aromatic compounds emerges as a viable solution across diverse industries. In this scheme, the conversion of ...
Lire la suite >Amidst concerns over fossil fuel dependency and environmental sustainability, the utilization of biomass-derived aromatic compounds emerges as a viable solution across diverse industries. In this scheme, the conversion of biomass involves pyrolysis, followed by a hydrodeoxygenation (HDO) step to reduce the oxygen content of pyrolysis oils and stabilize the end products including aromatics. In this study, we explored the properties of size controlled NiCu bimetallic catalysts supported on ordered mesoporous silica (SBA-15) for the catalytic gas-phase HDO of m-cresol, a lignin model compound. We compared their performances with monometallic Ni and Cu catalysts. The prepared catalysts contained varying Ni to Cu ratios and featured an average particle size of approximately 2 nm. The catalytic tests revealed that the introduction of Cu alongside Ni enhanced the selectivity for the direct deoxygenation (DDO) pathway, yielding toluene as the primary product. Optimal performance was observed with a catalyst composition comprising 5 wt.% Ni and 5 wr.% Cu, achieving 85 % selectivity to toluene. Further increasing the Cu content improved turnover frequency (TOF) values, but reduced DDO selectivity. These findings underscore the importance of catalyst design in facilitating biomass-derived compound transformations and offer insights into optimizing catalyst composition for more selective HDO reactions.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Équipe(s) de recherche :

Matériaux pour la catalyse (MATCAT)

Date de dépôt :

2024-08-05T21:01:53Z
2024-08-23T09:12:29Z