PROCESS FOR ALTERING THE PHYSICO-CHEMICAL PROPERTIES OF FAUJASITE Y-TYPE ZEOLITES

摘要

The present invention relates to a process for modifying the physical and chemical properties of Faujasite Y-type zeolites (FAU), mainly used as a base material of catalyst used in the Fluid Catalytic Cracking (FCC) process, for the interest of the oil refining industry, in which the conversion of oil heavy fractions into lighter fractions, with a higher commercial value, is carried out. More specifically, the present invention relates to a process for producing in a single step:
a) A modified Faujasite Y-type zeolite, with a lower sodium content, as low as 75%, than that of the starting Faujasite Y-type zeolite.
b) A mesoporous material associated to the modified Faujasite Y-type zeolite, presenting an average pore size ranging from 2 to 100 nm, where such produced materials present a bimodal or multimodal pore size distribution and the proportion of modified Faujasite Y-type zeolite with respect to the mesoporous material associated to the Faujasite Y type Zeolite, can be regulated through the process operation conditions.