Hydroprocessing catalysts based on transition ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Hydroprocessing catalysts based on transition metal sulfides prepared from Anderson and dimeric Co2Mo10-heteropolyanions. A review
Author(s) :
Nikulshin, Pavel [Auteur]
Samara State University [SSAU]
Mozhaev, Alexander [Auteur]
Samara State University [SSAU]
Lancelot, Christine [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Blanchard, Pascal [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]
Lamonier, Carole [Auteur]
3209|||Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS] (VALID)
Samara State University [SSAU]
Mozhaev, Alexander [Auteur]
Samara State University [SSAU]
Lancelot, Christine [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Blanchard, Pascal [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]
Lamonier, Carole [Auteur]
3209|||Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS] (VALID)
Journal title :
Comptes Rendus Chimie
Volume number :
19
Pages :
1276-1285
Publication date :
2016-01-04
HAL domain(s) :
Chimie/Catalyse
English abstract : [en]
Hydroprocessing catalysts based on transition metal sulfides have been extensively used worldwide in refineries for upgrading heavy fractions to better quality fuels. The present work reviews the studies dealing with ...
Show more >Hydroprocessing catalysts based on transition metal sulfides have been extensively used worldwide in refineries for upgrading heavy fractions to better quality fuels. The present work reviews the studies dealing with Anderson heteropolyanions (HPAs) and the derived dimeric structure for synthesizing hydrotreating catalysts. The development of new preparation methods based on HPA catalysts led to efficient catalytic systems due to better sulfidation allowed by a better dispersion of the oxidic precursor even at high metallic loadings. The increase of the Co/Mo ratio in the heteropolycompounds up to 0.5 was possible due to the formation of dimer cobalt salt. The association of Co and Mo at the molecular level in the same heteropolycompound preserved after the drying step during the catalyst preparation ensured the efficiency of the promoting effect with a higher quantity of the CoMoS active phase. This HPA-based system was further improved by the simultaneous use of HPAs and chelating agents.Show less >
Show more >Hydroprocessing catalysts based on transition metal sulfides have been extensively used worldwide in refineries for upgrading heavy fractions to better quality fuels. The present work reviews the studies dealing with Anderson heteropolyanions (HPAs) and the derived dimeric structure for synthesizing hydrotreating catalysts. The development of new preparation methods based on HPA catalysts led to efficient catalytic systems due to better sulfidation allowed by a better dispersion of the oxidic precursor even at high metallic loadings. The increase of the Co/Mo ratio in the heteropolycompounds up to 0.5 was possible due to the formation of dimer cobalt salt. The association of Co and Mo at the molecular level in the same heteropolycompound preserved after the drying step during the catalyst preparation ensured the efficiency of the promoting effect with a higher quantity of the CoMoS active phase. This HPA-based system was further improved by the simultaneous use of HPAs and chelating agents.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
ENSCL
CNRS
Centrale Lille
Univ. Artois
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Université de Lille
Collections :
Research team(s) :
Catalyse pour l’énergie (CATEN)
Submission date :
2019-09-25T14:05:03Z
2024-04-22T12:39:02Z
2024-04-22T12:39:02Z