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Vanadium passivation in a hydrocarbon catalytic cracking process

Patent ·
OSTI ID:6180064
;
This patent describes a process for the catalytic cracking of a vanadium-containing hydrocarbon charge stock. It comprises contacting the charge stock under catalytic cracking conditions with the catalyst composition comprising a crystalline aluminosilicate zeolite, a matrix material, and from 5 to 40 weight percent, based on the total catalyst composition, of a vanadium passivator having a passivation factor of at least 2.0, the anion of the vanadium passivator is of a weak non-volatile acid having a pKa greater than 5 and the cation is a Group IIA metal having an atomic number of greater than 20.
Assignee:
Chevron Research Co., San Francisco, CA (USA)
Patent Number(s):
A; US 4990240
Application Number:
PPN: US 7-479772
OSTI ID:
6180064
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
CATALYTIC CRACKING
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PASSIVATION
PYROLYSIS
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
VANADIUM
ZEOLITES