Development and application of FCC catalyst metals passivation
- Phillips Petroleum Co., Bartlesville, OK (United States)
Over the 14 years since it was first commercially introduced, metals passivation has played a key role in allowing refiners to maximize profits while cracking resid. Phillips Petroleum Company discovered and developed the antimony metals passivation process in the early 1970's, and successfully applied the process at its Borger, Texas heavy oil cracker (HOC) in 1976. For catalytic cracking units with contaminant metals problems, antimony metals passivation significantly decreases the yields of hydrogen and coke, and increases the yield of gasoline. For a unit operating against a limited gas compressor or regenerator air blower, decreases in yields of hydrogen and coke allow for any of the following benefits: increased throughput, increased conversion, or substitution of low value resid for some gas oil feed. With these performance benefits, metals passivation is widely used and accepted. Optimizing passivation performance is an important consideration as refiners maximize throughput, increased conversion, or substitution of low value reside for some gas oil feed. With these performance benefits, metals passivation is widely used and accepted. Optimizing passivation performance is an important consideration as refiners maximize throughput to catalytic cracking units and charge greater quantities of resid. Metals passivation should now be integrated into overall refining optimization models. Models used to predict catalytic cracking yields based on feedstock properties and operation parameters can be used effectively to evaluate the real benefits of additives and methods for enhancing the performance of metal passivation. Models are being used as well as advanced laboratory methods to develop techniques for improving the commercial performance of metals passivation. Specific commercial benefits obtained with the antimony metals passivation process and methods used for evaluating potential benefits are discussed. Options for maximizing benefits are presented.
- OSTI ID:
- 7195353
- Report Number(s):
- CONF-900802--
- Journal Information:
- American Chemical Society, Division of Petroleum Chemistry, Preprints; (United States), Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (United States) Vol. 35:4; ISSN 0569-3799; ISSN ACPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ANTIMONY
CATALYSTS
CATALYTIC CRACKING
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASOLINE
LIQUID FUELS
MATHEMATICAL MODELS
METALS
NICKEL
PASSIVATION
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PETROLEUM RESIDUES
POISONING
PYROLYSIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
VANADIUM
VISCOSITY
YIELDS