A method for preparing a mixture of FCC catalyst components for use in an
FCCU, which comprises: performing an analysis of an FCCU operation;
determining the catalyst requirements for the FCCU, based on said
analysis; determining the catalytic properties of at least two FCC
catalyst components selected from the group consisting of untreated
equilibrium FCC catalyst, reactivated equilibrium FCC catalyst,
demetallized equilibrium FCC catalyst, reactivated and demetallized
equilibrium FCC catalyst and fresh high activity FCC catalyst containing a
zeolite component; and blending said at least two components in
proportions, based on the determined properties of said at least two
components and the determined catalyst requirements, to form a mixture of
the components suitable for addition to the FCCU.
