Titre :

Activity of mo(w)s-2/sba-15 catalysts synthesized from simow heteropoly acids in 4,6-dimethyldibenzothiophene hydrodesulfurization

Auteur(s) :

Kokliukhin, Aleksandr [Auteur]
Samara State University [SSAU]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Nikul'shina, M. S. [Auteur]
Samara State University [SSAU]
Sheldaisov-Meshcheryakov, A. A. [Auteur]
Samara State University [SSAU]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Mozhaev, A. V. [Auteur]
Samara State University [SSAU]
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 :

1293-1299

Éditeur :

MAIK Nauka/Interperiodica

Date de publication :

2019-12-23

ISSN :

0965-5441

Mot(s)-clé(s) en anglais :

hydrotreatment
heteropoly acid
MoWS2 active phase
4.6-dimethyldithiobenzothiophene

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

Mo(W)/SBA-15 catalysts are prepared using heteropoly acids H4SiMo12O40, H4SiW12O40, and H4SiMo3W9O40. The catalysts in the sulfide form are studied by low-temperature nitrogen adsorption, high-resolution transmission ...
Lire la suite >Mo(W)/SBA-15 catalysts are prepared using heteropoly acids H4SiMo12O40, H4SiW12O40, and H4SiMo3W9O40. The catalysts in the sulfide form are studied by low-temperature nitrogen adsorption, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. Catalytic properties are tested in the hydrodesulfurization of 4,6-dimethyldibenzothiophene. It is shown that the gas-phase sulfiding of Mo(W)/SBA-15 catalysts leads to increase in the average length of particles and the number of Mo(W)S2 layers in active phase particles compared with liquid-phase sulfiding with the use of dimethyl sulfide. The replacement of a quarter of tungsten atoms with molybdenum ones makes it possible to considerably improve the catalytic activity of the mixed catalyst Mo + W/SBA-15 compared with the monometallic counterparts. This effect can be enhanced due to the use of mixed heteropoly acid H4SiMo3W9O40 as a precursor of the active phase of the MoW/SBA-15 catalyst, which is apparently associated with the formation of MoWS2 active sites.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Autre(s) projet(s) ou source(s) de financement :

Ministry of Education and Science of the Russian Federation (project no. 14.586.21.0054, unique project identifier RFME- FI58617X0054)
Ministry of Foreign Affairs and International Development (France)
Ministry of National Education, Higher Education, and Science (France) within the framework of the Partenariats Hubert Curien (PHC) program Kolmogorov for 2017–2019

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
2024-01-16T09:07:21Z
2024-02-20T09:57:08Z