Process for processing sulfur-containing heavy oil

Patent · Tue Nov 03 04:00:00 EST 1981

OSTI ID:5959095

Aizawa, S; Fujimori, K; Inoue, Y; Suzuka, T

A process is disclosed for processing a sulfur-containing heavy oil. The process comprises: in a first zone, catalytically cracking a sulfur-containing heavy oil in the presence of fluidized catalyst particles containing about 30 to 60 wt % fe to thereby convert the heavy oil to a light oil, deposit sulfur-containing coke on the catalyst particles, and partially fixing the decomposed sulfur compounds with the reduced iron contained in the catalyst particles as iron sulfide; in a second zone, contacting the catalyst from the first zone with an oxygen containing gas in an amount less than that theoretically required to thereby partially combust the coke on the catalyst, reduce the iron in the catalyst, and fix the sulfur compounds contained in the coke as iron sulfide; and in a third zone, contacting the reduced catalyst from the second zone with steam in a fluidized manner to produce hydrogen and hydrogen sulfide and to convert the reduced iron and iron sulfide in the catalyst to iron oxides, with the iron oxide-containing catalyst obtained in the third zone being recirculated into the second zone to be reduced and a part of the reduced-state catalyst obtained in the second zone being recirculated into the first zone.

• Assignee: Nippon Mining Co Ltd (Japan)
• Patent Number(s): US 4298460
• OSTI ID: 5959095
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CARBONIZATION
CATALYSTS
CATALYTIC CRACKING
CHALCOGENIDES
CHEMICAL REACTIONS
COKING
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FLUIDIZATION
FOSSIL FUELS
FUELS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
IRON COMPOUNDS
IRON ORES
IRON SULFIDES
NONMETALS
ORES
OXIDATION
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PYROLYSIS
REDUCTION
REGENERATION
SULFIDES
SULFUR COMPOUNDS
SULFUR CONTENT
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
VISCOSITY