Effect of Adding Transition Metals to ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Effect of Adding Transition Metals to Copper on the Dehydrogenation Reaction of Ethanol
Auteur(s) :
Amokrane, Samira [Auteur]
Université M'Hamed Bougara Boumerdes [UMBB]
Boualouache, Adel [Auteur]
Université M'Hamed Bougara Boumerdes [UMBB]
Simon, Pardis [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Capron, Mickael [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Otmanine, Ghazi [Auteur]
Université M'Hamed Bougara Boumerdes [UMBB]
Allam, Djaouida [Auteur]
Laboratoire de Chimie appliquée & génie chimique [Tizi-Ouzou] [LCAGC]
Hocine, Smain [Auteur]
Laboratoire de Chimie appliquée & génie chimique [Tizi-Ouzou] [LCAGC]
Université M'Hamed Bougara Boumerdes [UMBB]
Boualouache, Adel [Auteur]
Université M'Hamed Bougara Boumerdes [UMBB]
Simon, Pardis [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Capron, Mickael [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Otmanine, Ghazi [Auteur]
Université M'Hamed Bougara Boumerdes [UMBB]
Allam, Djaouida [Auteur]
Laboratoire de Chimie appliquée & génie chimique [Tizi-Ouzou] [LCAGC]
Hocine, Smain [Auteur]
Laboratoire de Chimie appliquée & génie chimique [Tizi-Ouzou] [LCAGC]
Titre de la revue :
Catalysis Letters
Date de publication :
2021-01-29
ISSN :
1011-372X
Mot(s)-clé(s) en anglais :
Deposition-precipitation
Bimetallic catalyst
Deactivation
Copper
Dehydrogenation
Acetaldehyde
Ethanol
Bimetallic catalyst
Deactivation
Copper
Dehydrogenation
Acetaldehyde
Ethanol
Discipline(s) HAL :
Chimie/Catalyse
Résumé en anglais : [en]
The present work aims to investigate the effect adding Ag, Co, Ni, Cd and Pt to copper on ethanol dehydrogenation. The catalysts synthesized by deposition–precipitation method were characterized using various physicochemical ...
Lire la suite >The present work aims to investigate the effect adding Ag, Co, Ni, Cd and Pt to copper on ethanol dehydrogenation. The catalysts synthesized by deposition–precipitation method were characterized using various physicochemical methods such as N2 adsorption–desorption, TPR, SEM–EDX, XRD, XPS and TGA–DSC-MS. Catalytic evaluation results revealed that the predominant product of the reaction was acetaldehyde. Monometallic copper or mixed with Cd, Ag or Co show good catalytic performances. Adding nickel to copper improves the process conversion but reduces acetaldehyde selectivity, giving rise to methane in produced hydrogen. Pt-Cu/SiO2 catalyst guides the reaction towards diethyl ether. Time on stream tests performed during 12 h at 260 °C, showed that adding Cd to Cu enhances its stability by over 30% of conversion, this is explained by the reduction of copper crystallites sintering, which makes Cd-Cu/SiO2 a promising catalyst for the production of acetaldehyde by ethanol dehydrogenation.Lire moins >
Lire la suite >The present work aims to investigate the effect adding Ag, Co, Ni, Cd and Pt to copper on ethanol dehydrogenation. The catalysts synthesized by deposition–precipitation method were characterized using various physicochemical methods such as N2 adsorption–desorption, TPR, SEM–EDX, XRD, XPS and TGA–DSC-MS. Catalytic evaluation results revealed that the predominant product of the reaction was acetaldehyde. Monometallic copper or mixed with Cd, Ag or Co show good catalytic performances. Adding nickel to copper improves the process conversion but reduces acetaldehyde selectivity, giving rise to methane in produced hydrogen. Pt-Cu/SiO2 catalyst guides the reaction towards diethyl ether. Time on stream tests performed during 12 h at 260 °C, showed that adding Cd to Cu enhances its stability by over 30% of conversion, this is explained by the reduction of copper crystallites sintering, which makes Cd-Cu/SiO2 a promising catalyst for the production of acetaldehyde by ethanol dehydrogenation.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Valorisation des alcanes et de la biomasse (VAALBIO)
Date de dépôt :
2022-03-02T07:15:25Z
2024-02-06T14:28:27Z
2024-02-06T14:28:27Z