Title :

Experimental and ab initio Investigation on the Effect of CO and CO2 during Hydrodeoxygenation of m-Cresol over Co/SBA-15

Author(s) :

Abreu Teles, Camila [Auteur]
Institut de Chimie des Milieux et Matériaux de Poitiers [IC2MP]
Gueddida, S. [Auteur]
Laboratoire de Physique et Chimie Théoriques [LPCT]
Deplazes, Roger [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Ciotonea, C. [Auteur]
Université du Littoral Côte d'Opale [ULCO]
Canilho, N. [Auteur]
Laboratoire Lorrain de Chimie Moléculaire [L2CM]
Lebegue, S. [Auteur]
Laboratoire de Physique et Chimie Théoriques [LPCT]
Dhainaut, Jeremy [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Badawi, M. [Auteur]
Laboratoire de Physique et Chimie Théoriques [LPCT]
Richard, F. [Auteur]
Institut de Chimie des Milieux et Matériaux de Poitiers [IC2MP]
royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
royer, sebastien [Auteur]

Journal title :

ChemCatChem

Volume number :

15

Pages :

-

Publication date :

2023-03-28

ISSN :

1867-3880

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

The hydrodeoxygenation (HDO) is a fundamental step in the production of biofuels from lignin, and the catalyst type and reaction conditions can play an important role. In this work, Co nanoparticles finely dispersed in the ...
Show more >The hydrodeoxygenation (HDO) is a fundamental step in the production of biofuels from lignin, and the catalyst type and reaction conditions can play an important role. In this work, Co nanoparticles finely dispersed in the porosity of SBA-15 stand out a high selectivity toward deoxygenated products (63 % of methylcyclohexenes and 16 % of methylcyclohexane) in the HDO of m-cresol (30 bar of pressure, temperature of 350 °C). The effect of co-feeding CO and CO2, which can be present in the pyrolysis gas after transformation of carboxylic acids, was investigated. An unexpected positive effect on the stability of the catalyst was observed when CO2 was added in the feed stream. On the contrary, the presence of CO led to a strong decrease of the m-cresol conversion. These experimental findings are supported by DFT calculations which show that the m-cresol is much more strongly adsorbed than CO2 at the Co@SiO2 interface while the interaction energy of CO is close to the one of m-cresol.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

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

Research team(s) :

Matériaux pour la catalyse (MATCAT)

Submission date :

2023-04-06T00:25:52Z
2023-04-14T08:42:23Z