| 摘要 |
Process for the two-stage treatment of a new or regenerated catalyst containing (a) a support based on at least one oxide of a metal or of a metalloid and (b) at least one active metal, in which process, in a first stage carried out "ex situ" approximately between 0 and 50@C and in the absence of hydrogen, the catalyst is treated with the aid of at least one sulphurising agent so as partially or completely to incorporate this agent in the porosity of the catalyst, the sulphurising agent being an organic polysulphide, in which process, next, in a second stage, the catalyst obtained in the first stage is treated by a method in which (a) the catalyst is treated, in the absence of hydrogen and in the presence of at least steam or of at least one moist inert gas "in situ" or "ex situ". The process is characterised in that during the first stage 0.1 to 10 % by weight of at least one halogen- or phosphorus-containing compound is added, the weight being expressed as halogen or as phosphorus, relative to the weight of polysulphide(s), the said agent being introduced in an anhydrous organic medium.
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