ADDITIVES FOR THE MAXIMIZATION OF LIGHT OLEFINS IN FLUID CATALYTIC CRACKING UNITS, AND PROCESS

摘要

A description is given of additives for mixing with the basic catalyst stock of fluid catalytic cracking (FCC) process units so as to achieve high selectivity in terms of light olefins (ethene and propene). Said additives comprise an FER zeolite and an MFI zeolite, the MFI zeolite preferably being ZSM-5 zeolite. Mixing-in of the additive in a concentration above 2% m/m in relation to the basic catalyst of an FCC unit allows greater selectivity in terms of light olefins (propene and ethene), while maintaining catalytic activity.