Title :

Effect of Adding Transition Metals to Copper on the Dehydrogenation Reaction of Ethanol

Author(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]

Journal title :

Catalysis Letters

Publication date :

2021-01-29

ISSN :

1011-372X

English keyword(s) :

Deposition-precipitation
Bimetallic catalyst
Deactivation
Copper
Dehydrogenation
Acetaldehyde
Ethanol

HAL domain(s) :

Chimie/Catalyse

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

Language :

Anglais

Audience :

Internationale

Popular science :

Non

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) :

Valorisation des alcanes et de la biomasse (VAALBIO)

Submission date :

2022-03-02T07:15:25Z
2024-02-06T14:28:27Z