Applications of Pulsed Electron Paramagnetic ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Applications of Pulsed Electron Paramagnetic Resonance Spectroscopy to the Identification of Vanadyl Complexes in Asphaltene Molecules. Part 2: Hydrotreatment Monitoring
Author(s) :
Ben Tayeb Meziane, Karima [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Delpoux, Olivier [Auteur]
IFP Energies nouvelles [IFPEN]
Barbier, Jérémie [Auteur]
IFP Energies nouvelles [IFPEN]
Chatron-Michaud, Pascal [Auteur]
IFP Energies nouvelles [IFPEN]
Digne, Mathieu [Auteur]
IFP Energies nouvelles [IFPEN]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Delpoux, Olivier [Auteur]
IFP Energies nouvelles [IFPEN]
Barbier, Jérémie [Auteur]
IFP Energies nouvelles [IFPEN]
Chatron-Michaud, Pascal [Auteur]
IFP Energies nouvelles [IFPEN]
Digne, Mathieu [Auteur]
IFP Energies nouvelles [IFPEN]
Vezin, Herve [Auteur]

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Journal title :
Energy & Fuels
Abbreviated title :
Energy Fuels
Volume number :
31
Pages :
3288-3294
Publisher :
American Chemical Society (ACS)
Publication date :
2017-02-22
ISSN :
1520-5029
English keyword(s) :
Hydrocarbons
Chemical structure
Electron paramagnetic resonance spectroscopy
Vanadium
Aromatic compounds
Chemical structure
Electron paramagnetic resonance spectroscopy
Vanadium
Aromatic compounds
HAL domain(s) :
Chimie/Chimie théorique et/ou physique
English abstract : [en]
The potential of electron paramagnetic resonance (EPR) spectroscopy to provide structural information on vanadyl species in asphaltene fractions was evaluated. The evolution of the chemical environment of vanadium during ...
Show more >The potential of electron paramagnetic resonance (EPR) spectroscopy to provide structural information on vanadyl species in asphaltene fractions was evaluated. The evolution of the chemical environment of vanadium during the fixed-bed hydrotreating process was studied. This study shows that asphaltenes are composed of two types of environment: porphyrinic and non-porphyrinic structures. The hydroconversion process reduced by 40% the participation of non-porphyrinic species, while the porphyrinic complexes only diminished by 15%, which demonstrates that porphyrinic species are the most refractory to hydroconversion.Show less >
Show more >The potential of electron paramagnetic resonance (EPR) spectroscopy to provide structural information on vanadyl species in asphaltene fractions was evaluated. The evolution of the chemical environment of vanadium during the fixed-bed hydrotreating process was studied. This study shows that asphaltenes are composed of two types of environment: porphyrinic and non-porphyrinic structures. The hydroconversion process reduced by 40% the participation of non-porphyrinic species, while the porphyrinic complexes only diminished by 15%, which demonstrates that porphyrinic species are the most refractory to hydroconversion.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Collections :
Research team(s) :
Propriétés magnéto structurales des matériaux (PMSM)
Submission date :
2021-06-17T13:26:37Z
2021-09-09T14:51:03Z
2021-09-10T10:46:54Z
2021-09-09T14:51:03Z
2021-09-10T10:46:54Z