Titre :

Highly active bulk mo(w)s-2 hydrotreating catalysts synthesized by etching out of the carrier from supported mono- and bimetallic sulfides

Auteur(s) :

Koklyukhin, A. S. [Auteur]
Samara State University [SSAU]
Mozhaev, A. V. [Auteur]
Samara State University [SSAU]
Nikul'shina, M. S. [Auteur]
Samara State University [SSAU]
Lancelot, Christine [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Blanchard, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Lamonier, Carole [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Nikul'shin, P. A. [Auteur]
Samara State University [SSAU]

Titre de la revue :

Neftekhimiya / Petroleum Chemistry

Nom court de la revue :

Pet. Chem.

Numéro :

59

Pagination :

S53-S59

Date de publication :

2020-01-13

ISSN :

0965-5441

Mot(s)-clé(s) en anglais :

MoWS2
bulk catalysts
hydrotreating
naphthalene
dibenzothiophene

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

A bulk MoWS2 catalyst has been synthesized by acid etching of the carrier from the supported MoWS2/Al2O3 catalyst obtained on the basis of the mixed bimetallic heteropoly acid (HPA) H4[SiMo3W9O40]. As reference samples, ...
Lire la suite >A bulk MoWS2 catalyst has been synthesized by acid etching of the carrier from the supported MoWS2/Al2O3 catalyst obtained on the basis of the mixed bimetallic heteropoly acid (HPA) H4[SiMo3W9O40]. As reference samples, monometallic MoS2 and WS2 catalysts have been prepared from the corresponding supported analogues, as well as a Mo + WS2 sample based on a mechanical mixture of monometallic HPA in the atomic ratio of Mo/W = 1/3. The catalytic properties of the synthesized catalysts have been studied in model reactions of hydrodesulfurization (HDS) of dibenzthiophene (DBT) and hydrogenation (HYD) of naphthalene in a flow unit. It has been shown that the catalytic activity of the samples in both the DBT HDS and naphthalene HYD reactions increases in the following order: MoS2 < WS2 < Mo + WS2 MoWS2. It has been found that the bulk tungsten-containing catalysts exhibit higher specific catalytic activity than the supported counterparts. Increased values of hydrogen uptake according to the results of hydrogen temperature-programmed reduction for the bulk catalysts indicate an increase in the number of active sites and the formation of a more effective active phase compared to supported catalysts.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

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

Équipe(s) de recherche :

Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)

Date de dépôt :

2022-03-02T07:14:17Z
2024-02-06T17:24:04Z
2024-02-15T10:18:21Z