PROCESS FOR REGENERATING ADDITIVE CONTAINING CATALYSTS

摘要

The present invention pertains to a process for regenerating a used additive - based catalyst comprising the step of regenerating the catalyst by contactin g it with an oxygen-containing gas at a maximum temperature of 500 ~C. Preferably, the maximum catalyst temperature during the regeneration step is 300-500 ~C, more preferably 320-475 ~C, even more preferably 350-425 ~C. The regenerated additive-based catalyst obtained with the process according to t he invention has a higher activity than an additive-based catalyst regenerated at a higher temperature. Additionally, its activity is also higher than that of a corresponding catalyst which never contained an additive.