Passivation of FCC catalysts
Patent
·
OSTI ID:6004682
This patent describes improvement in a method for cracking a hydrocarbon which comprises: contacting a hydrocarbon feedstock with a fluidized zeolite-containing cracking catalyst in a cracking zone under cracking condition; recovering the cracked products; passing the cracked catalyst from the cracking zone to a regeneration zone; regenerating the cracking catalyst in the regeneration zone by contact by oxygen-containing gas under regeneration conditions to produce a regenerated catalyst; and introducing the regenerated catalyst to the cracking zone for contact with the hydrocarbon feedstock; wherein the catalyst during the cracking process is contaminated with nickel contained in a feedstock, wherein nickel increases hydrogen and coke yield at the cracking temperatures and conditions in the cracking zone. The improvement comprises treating the feedstock containing the nickel contamination with cerium in an amount being from 0.005 to 8,000 ppm based on the concentration of the nickel in the feedstock.
- Assignee:
- Betz Lab., Inc., Trevose, PA (United States)
- Patent Number(s):
- A; US 5064524
- Application Number:
- PPN: US 7-500426
- OSTI ID:
- 6004682
- Country of Publication:
- United States
- Language:
- English
Similar Records
Passivation of FCC catalysts
Method for passivating cracking catalyst
Process and apparatus for reducing NO sub x emissions from high-efficiency FCC regenerators
Patent
·
Tue Jul 22 00:00:00 EDT 1986
·
OSTI ID:5331778
Method for passivating cracking catalyst
Patent
·
Tue May 19 00:00:00 EDT 1987
·
OSTI ID:6533703
Process and apparatus for reducing NO sub x emissions from high-efficiency FCC regenerators
Patent
·
Tue Jul 14 00:00:00 EDT 1992
·
OSTI ID:6984530
Related Subjects
02 PETROLEUM
020400* -- Petroleum-- Processing
08 HYDROGEN
080103 -- Hydrogen-- Production-- Steam Reformer Processes
ALLOYS
CATALYTIC CRACKING
CATALYTIC REFORMING
CERIUM
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COKE
CRACKING
DECOMPOSITION
ELEMENTS
FLUIDIZED BED REACTORS
FUEL DISPERSION REACTORS
HOMOGENEOUS REACTORS
HYDROCARBONS
HYDROGEN PRODUCTION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
NICKEL ADDITIONS
NICKEL ALLOYS
ORGANIC COMPOUNDS
PYROLYSIS
RARE EARTHS
REACTORS
REFORMER PROCESSES
SILICATE MINERALS
THERMOCHEMICAL PROCESSES
ZEOLITES
020400* -- Petroleum-- Processing
08 HYDROGEN
080103 -- Hydrogen-- Production-- Steam Reformer Processes
ALLOYS
CATALYTIC CRACKING
CATALYTIC REFORMING
CERIUM
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COKE
CRACKING
DECOMPOSITION
ELEMENTS
FLUIDIZED BED REACTORS
FUEL DISPERSION REACTORS
HOMOGENEOUS REACTORS
HYDROCARBONS
HYDROGEN PRODUCTION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
NICKEL ADDITIONS
NICKEL ALLOYS
ORGANIC COMPOUNDS
PYROLYSIS
RARE EARTHS
REACTORS
REFORMER PROCESSES
SILICATE MINERALS
THERMOCHEMICAL PROCESSES
ZEOLITES