Title :

Improvement of HDS catalysts through the modification of the oxidic precursor with 1,5-pentanediol: Gas phase sulfidation and thiophene conversion

Author(s) :

Blanchard, Pascal [Auteur]
3209|||Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS] (VALID)
Frizi, Naïma [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Mary, Soazic [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Baranek, Pascale [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lancelot, Christine [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lamonier, Carole [Auteur]
3209|||Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS] (VALID)
Payen, Edmond [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]

Journal title :

Comptes Rendus Chimie

Volume number :

19

Pages :

1286-1302

Publication date :

2016-05-31

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

The performance, in thiophene HDS, of a CoMo/Al2O3 catalyst was successfully improved through chemical modification of its oxidic precursor by impregnation with 1,5-pentanediol solution. The gas phase activation with a ...
Show more >The performance, in thiophene HDS, of a CoMo/Al2O3 catalyst was successfully improved through chemical modification of its oxidic precursor by impregnation with 1,5-pentanediol solution. The gas phase activation with a H2/H2S mixture was followed by thermogravimetric analysis coupled with a rapid chromatograph; the catalysts were characterized at different steps of the activation using X-ray photoelectron spectroscopy (XPS). It appeared that the addition of the organic agent retards the sulfidation of the supported metals, leading to a simultaneous sulfidation of Co and Mo atoms. This induces the formation of smaller MoS2 slabs and thus an increase in the number of active CoMoS sites, directly correlated with the better HDS performance of the modified solid. The role of 1,5-pentanediol is likely to inhibit, at low temperature, the adsorption of H2S on the solid and thus the sulfidation of the supported metals.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille

Collections :

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

Research team(s) :

Catalyse pour l’énergie (CATEN)

Submission date :

2019-09-25T14:05:04Z
2024-04-22T09:26:05Z