Ethanol transformation into hydrocarbons ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Ethanol transformation into hydrocarbons on ZSM-5 zeolites: Influence of Si/Al ratio on catalytic performances and deactivation rate. Study of the radical species role
Author(s) :
Ferreira Madeira, Filipa [Auteur]
Institut de Chimie des Milieux et Matériaux de Poitiers [IC2MP]
Ben Tayeb Meziane, Karima [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Pinard, Ludovic [Auteur]
Institut de Chimie des Milieux et Matériaux de Poitiers [IC2MP]
Vezin, Herve [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Maury, Sylvie [Auteur]
IFP Energies nouvelles [IFPEN]
Cadran, Nicolas [Auteur]
IFP Energies nouvelles [IFPEN]
Institut de Chimie des Milieux et Matériaux de Poitiers [IC2MP]
Ben Tayeb Meziane, Karima [Auteur]

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Pinard, Ludovic [Auteur]
Institut de Chimie des Milieux et Matériaux de Poitiers [IC2MP]
Vezin, Herve [Auteur]

Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Maury, Sylvie [Auteur]
IFP Energies nouvelles [IFPEN]
Cadran, Nicolas [Auteur]
IFP Energies nouvelles [IFPEN]
Journal title :
Applied Catalysis A: General
Volume number :
443-444
Pages :
171-180
Publisher :
Elsevier BV
Publication date :
2012-11
ISSN :
0926-860X
English keyword(s) :
Brønsted acidity
Coke composition
Radical
Deactivation
Ethanol conversion
Coke composition
Radical
Deactivation
Ethanol conversion
HAL domain(s) :
Chimie/Chimie organique
Chimie/Catalyse
Chimie/Autre
Chimie/Catalyse
Chimie/Autre
English abstract : [en]
The catalytic performances of HZSM-5 zeolites with Si/Al ratios ranging from 16 to 500 were investigated for ethanol transformation into hydrocarbons. The fresh and used catalysts were characterized by a combination of ...
Show more >The catalytic performances of HZSM-5 zeolites with Si/Al ratios ranging from 16 to 500 were investigated for ethanol transformation into hydrocarbons. The fresh and used catalysts were characterized by a combination of nitrogen adsorption, pyridine adsorption followed by infrared spectroscopy (IR), gas chromatography–mass spectrometry (GC–MS) coupling and electron paramagnetic resonance (EPR). HZSM-5(Si/Al = 40) was found to be the most stably and selective catalyst due to an optimum balance between the number of Brønsted acid sites and the amount of radicals, which are active sites for ethanol conversion into higher hydrocarbons. However, a change of radical species nature occurred with time-on-stream (TOS) which could be responsible for the deactivation of all catalysts leading to a decrease of C3+ hydrocarbons yield.Show less >
Show more >The catalytic performances of HZSM-5 zeolites with Si/Al ratios ranging from 16 to 500 were investigated for ethanol transformation into hydrocarbons. The fresh and used catalysts were characterized by a combination of nitrogen adsorption, pyridine adsorption followed by infrared spectroscopy (IR), gas chromatography–mass spectrometry (GC–MS) coupling and electron paramagnetic resonance (EPR). HZSM-5(Si/Al = 40) was found to be the most stably and selective catalyst due to an optimum balance between the number of Brønsted acid sites and the amount of radicals, which are active sites for ethanol conversion into higher hydrocarbons. However, a change of radical species nature occurred with time-on-stream (TOS) which could be responsible for the deactivation of all catalysts leading to a decrease of C3+ hydrocarbons yield.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 :
2021-06-17T15:32:55Z
2021-09-27T12:56:17Z
2021-09-27T12:56:17Z