CATALYST WITH PEDIATED SHELL AND METHOD OF OBTAINING THE CATALYST WITH PREPARED SHELL

摘要

The invention relates to a method for producing a catalyst, comprising the following steps: obtaining a carrier, then modifying said carrier by first impregnating with at least one alkaline earth metal in the first solution of the metal precursor. The splitting of the first metal precursor is carried out with the formation of at least one metal oxide or metal hydroxide to produce a modified support as a result, and the second impregnation is carried out by moisture capacity using a second precursor solution containing at least one metal Me in the second solution. Finally, the second precursor is split with the resulting catalyst body, the outer shell of which is rich in at least one metal Me, and wherein said at least one metal is present in a concentration that has an “egg shell” type and / or a curved profile.