Title :

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

Author(s) :

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

Journal title :

Neftekhimiya / Petroleum Chemistry

Abbreviated title :

Pet. Chem.

Volume number :

59

Pages :

1293-1299

Publisher :

MAIK Nauka/Interperiodica

Publication date :

2019-12-23

ISSN :

0965-5441

English keyword(s) :

hydrotreatment
heteropoly acid
MoWS2 active phase
4.6-dimethyldithiobenzothiophene

HAL domain(s) :

Chimie/Catalyse

English abstract : [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 ...
Show more >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.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Other project(s) or funding source(s) :

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

Administrative institution(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

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

Research team(s) :

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

Submission date :

2022-03-02T07:14:17Z
2024-01-16T09:07:21Z
2024-02-20T09:57:08Z
2024-04-05T10:39:12Z