Two-step hydrodesulfurization of heavy hydrocarbon oil
Patent
·
OSTI ID:5933113
A process for hydrodesulfurization of heavy hydrocarbon oil containing asphaltenes and heavy metals in large amounts is disclosed. The heavy oil is hydrotreated in a continuous 2-step process. In the first step the heavy oil is subjected to hydrodemetallization and selective cracking of asphaltenes by the use of a catalyst. In the second step the effluent from the first step is subjected to hydrodesulfurization to produce desulfurized oils of high grade by the use of a catalyst having a pore volume and pore size distribution particularly adapted for the hydrodesulfurization of the effluent.
- Assignee:
- Chiyoda Chemical Engineering and Construction Co., Ltd.
- Patent Number(s):
- US 4166026
- OSTI ID:
- 5933113
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020500* -- Petroleum-- Products & By-Products
020800 -- Petroleum-- Waste Management
AIR POLLUTION CONTROL
ASPHALTENES
ASPHALTS
BITUMENS
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CRACKING
CRYOGENIC FLUIDS
CRYSTAL STRUCTURE
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FLUIDS
FUEL OILS
FUELS
HYDROGEN
METALS
MICROSTRUCTURE
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION CONTROL
POROSITY
PURIFICATION
PYROLYSIS
REMOVAL
SULFUR
TAR
THERMOCHEMICAL PROCESSES
020500* -- Petroleum-- Products & By-Products
020800 -- Petroleum-- Waste Management
AIR POLLUTION CONTROL
ASPHALTENES
ASPHALTS
BITUMENS
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CRACKING
CRYOGENIC FLUIDS
CRYSTAL STRUCTURE
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FLUIDS
FUEL OILS
FUELS
HYDROGEN
METALS
MICROSTRUCTURE
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
POLLUTION CONTROL
POROSITY
PURIFICATION
PYROLYSIS
REMOVAL
SULFUR
TAR
THERMOCHEMICAL PROCESSES