Titre :

Strategy to produce highly loaded alumina supported CoMo-S catalyst for straight run gas oil hydrodesulfurization

Auteur(s) :

Miño, Andres [Auteur]
Lancelot, Christine [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Blanchard, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lamonier, Carole [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Rouleau, Loïc [Auteur]
Roy-Auberger, Magalie [Auteur]
Royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Payen, Edmond [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]

Titre de la revue :

Applied Catalysis A : General

Numéro :

530

Pagination :

145-153

Éditeur :

Elsevier

Date de publication :

2017-01-25

Mot(s)-clé(s) en anglais :

Mesoporous alumina
Hydrotreatment
Mesostructuration
SRGO

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

A simple postmodification synthesis is proposed to produce large pore volume alumina, with addition of a porogen during the peptization step, which is an industrial process preceding alumina shaping. By adjusting the ...
Lire la suite >A simple postmodification synthesis is proposed to produce large pore volume alumina, with addition of a porogen during the peptization step, which is an industrial process preceding alumina shaping. By adjusting the synthesis parameters, obtained alumina present improved textural properties compared to conventional ones: specific surface areas between 380 à 430 m2 g−1, large pore diameters between 12 and 20 nm and consequently large pore volumes. This allowed to prepare highly loaded catalysts, at a density of 4 atMo.nm−2, without the formation of undesirable bulk molybdenum-cobalt oxide species despite the high molybdenum content. Catalysts performance were evaluated in thiophene HDS, where the activity varied by a factor 1.5. The most performant solid of the series was then tested in the HDS of a straight run gas oil under industrial conditions: it showed significantly improved activity compared to that of a catalyst prepared from a commercial alumina with the same molybdenum density, with a temperature gain of 17 °C at 100 ppm residual sulfur. Moreover, the catalyst activity remained stable after one week of testing. This work thus evidences that the development of alumina supports with enhanced textural properties is an efficient way to improve the performance of HDS CoMo catalysts.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

ENSCL
Université de Lille
CNRS
Centrale Lille
Univ. Artois

Collections :

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

Équipe(s) de recherche :

Catalyse pour l’énergie (CATEN)
Matériaux pour la catalyse (MATCAT)

Date de dépôt :

2019-09-25T14:05:09Z
2021-03-29T09:09:14Z