Fluid catalytic cracking
A fluid catalytic cracking process is disclosed for sulfur-containing petroleum charge stocks. Sulfur contained in coke deposited on the fluidized cracking catalyst in the reactor is converted to sulfur oxides in the regenerator and removed from regenerator off-gases by incorporating a composite of alumina and bismuth oxides in a particulate cracking catalyst. Sulfur oxides produced during regeneration of the catalyst by burning the coke with air in the regenerator are captured by the alumina-bismuth oxides composite and converted to hydrogen sulfide in the cracking reactor. The hydrogen sulfide so produced is readily separated from petroleum products of the catalytic cracking reaction process.
- Assignee:
- Texaco Inc.
- Patent Number(s):
- US 4446010
- OSTI ID:
- 6514902
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CATALYSTS
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL FEEDSTOCKS
CHEMICAL REACTIONS
COKE
CRACKING
DECOMPOSITION
DESULFURIZATION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCRACKING
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PYROLYSIS
REGENERATION
REMOVAL
RESIDUES
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR OXIDES
THERMOCHEMICAL PROCESSES