Patent ID: 6878656
Filing Date: 2005-04-12
Classification: B01J,C10G

Abstract:
1. A method for preparing a mixture of FCC catalysts for use in an FCCU, which comprises: performing an analysis of an FCCU operation, said analysis including: (a) evaluating the catalyst currently used in the FCCU and physical and chemical properties of equilibrium catalyst in the FCCU; (b) evaluating yields and properties of product of the FCCU and the objectives of the operator of the FCCU; and (c) determining properties of the FCCU feedstock that affect the operation of the FCCU; determining the catalyst requirements for the FCCU, based on said analysis; determining the catalytic properties of at least two individual FCC catalysts 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 individual FCC catalysts in proportions, based on the determined properties of said at least two catalysts and the determined catalyst requirements, to form a mixture of the catalysts suitable for use as a catalyst in the FCCU.