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Lubricating oil process

Patent ·
OSTI ID:5942850
;
Heavy gas oil is converted to a high quality, high viscosity index lubricating oil stock by improved contacting with hydrogen in three catalytic stages. The gas oil is first hydrotreated to provide a stock more amenable to subsequent hydrocracking, thus permitting the use of less severe conditions in the latter step. The hydrocracked oil is finally subjected to a hydrogenation step to fully meet remaining lubricating oil specifications.
Assignee:
Atlantic Richfield Co
Patent Number(s):
US 4294687
OSTI ID:
5942850
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
020500 -- Petroleum-- Products & By-Products
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DEWAXING
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAS OILS
HYDROCRACKING
HYDROGEN
HYDROGENATION
LUBRICANTS
LUBRICATING OILS
MINERALS
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PYROLYSIS
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SYNTHESIS
THERMOCHEMICAL PROCESSES
VISCOSITY