Deactivation mechanisms and regeneration of a bimetallic hydrodechlorination catalyst

[en] The temporal evolution of the activity and selectivity of a 1.9%Pd-3.7%Ag/SiO2 catalyst during selective hydrodechlorination of 1,2-dichloroethane into ethylene is examined. A comparison between the physico-chemical properties of the fresh catalyst and of the deactivated one suggests a deactivation mechanism by poisoning or coking of Ag sites at the surface of the active Pd-Ag particles. A regeneration treatment is proposed which allows to restore the initial properties of the fresh catalyst.

Disciplines :

Chemical engineering
Materials science & engineering

Author, co-author :

Heinrichs, Benoît ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée

Noville, Francis ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée

Schoebrechts, Jean-Paul; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Chimie physique appliquée

Pirard, Jean-Paul

Language :

English

Title :

Deactivation mechanisms and regeneration of a bimetallic hydrodechlorination catalyst

Publication date :

1999

Journal title :

Studies in Surface Science and Catalysis

ISSN :

0167-2991

Publisher :

Elsevier Science, Amsterdam, Netherlands

Volume :

126

Pages :

407-410

Peer reviewed :

Peer reviewed

Available on ORBi :

since 27 October 2009

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Bibliography

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