Process of obtaining a catalyst, catalyst and pre-treatment process of acidic charges

A PROCESS OF OBTAINING A PRE-TREATMENT CATALYST OF ACIDIC CHARGES, characterized in that it comprises the following steps:

• a) precipitation of zirconium hydroxide using a source of zirconium and a base;
• b) addition of a porogen to the solution prepared in a);
• c) stirring, aging, filtering, drying;
• d) addition of a source of cerium and a source of sulfur over the dry material obtained in c);
• e) calcination of the material obtained in d);
• f) optionally, the addition of the porogen is carried out during the sulfation/incorporation of cerium in d), followed by calcination;
• g) optionally, addition of a source of titanium and sulfur followed by the addition of cerium in step d).