Effect of metals poisoning on FCC products yields: studies in an FCC shortcontact time pilot plant unit

In this work the effects of two metal poisons (Ni, V) on FCC products were investigated in an FCC pilot plant. The most important effects of metals we re found on the gasoline, coke and H-2 yields. A comparison study of the me tal distribution in the catalyst particles aged in the FCC pilot plant, a C DU and an industrial FCCU was also performed using a SEM-EDS method. SEM re sults showed that the metal profiles from CDU samples simulate more satisfa ctorily the profiles of the E-cat than that from the FCC pilot plant. (C) 2 001 Elsevier Science B.V. All rights reserved.