Eurecat S.a.

Europeene De Retraitement De Catalyseurs-eurecat

François Locatelli

Pierre Dufresne

Franck Labruyere

James Maxie Robinson

Nilanjan Brahma

Georges Mendakis

Pierre Dufresnce

Franck Lebruyere

The present invention concerns a process for 'ex situ' treatment of a hydrogenation catalyst containing nickel prior to use, consisting of carrying out three steps, namely bringing the catalyst into contact with at least one sulphur-containing compound or agent (the step termed selectivation), treating said catalyst with hydrogen at a temperature of more than 250&#xb0; C. (the step termed reduction) and passivation of said catalyst.

Off-site treatment for hydrogenation catalysts

A process for regenerating a palladium catalyst from a catalytic reaction where the catalyst is contaminated with at least carbon. The regenerating is conducted prior to any heating step under oxidizing conditions in the regenerating section. The regenerating involves at least one heating step under a hydrogen-containing reducing atmosphere and under conditions sufficient to lower the content of carbon in the palladium catalyst.

Regeneration method of heterogeneous catalysts and adsorbents

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Valence, France

François Locatelli