Quenching downstream of an external vapor catalyst separator
This patent describes a catalytic cracking process. It comprises catalytically cracking feed oil in a catalytic cracking unit comprising a regenerator and at least one catalytic cracking reactor selected from the group consisting of a riser reactor and a fluidized bed reactor, in the presence of a cracking catalyst to produce a catalyst-laden stream comprising upgraded oil and coked catalyst; separating substantially all of the cracking catalyst from the catalyst laden stream in an external gross-cut separator downstream of the reactor into a catalyst rich stream comprising the coked catalyst and a product stream comprising the upgraded oil, and substantially immediately thereafter; quenching the product stream of upgraded oil discharged from the external gross-cut separator to substantially decrease thermal cracking of the upgraded oil to less valuable hydrocarbon products and light hydrocarbon gases and concurrently enhance the yield of naphtha to substantially increase the production of gasoline; regenerating the coked catalyst in a regenerator; and recycling the regenerated catalyst to the catalytic cracking reactor.
- Assignee:
- Amoco Corp., Chicago, IL (USA)
- Application Number:
- PPN: US 7-499043
- OSTI ID:
- 5795970
- Resource Relation:
- Patent File Date: 26 Mar 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
10 SYNTHETIC FUELS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CATALYSTS
SEPARATION PROCESSES
HYDROCARBONS
CATALYTIC CRACKING
CHEMICAL REACTORS
COKE
PETROLEUM RESIDUES
REFINING
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PROCESSING
PYROLYSIS
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing
100200 - Synthetic Fuels- Production- (1990-)
400105 - Separation Procedures