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Three-stage hydrocracking process

Patent ·
OSTI ID:5515710
;
A hydrocracking process is disclosed of improved flexibility comprises three hydroprocessing stages and a fractionating zone such that the effluent from the first hydroprocessing stage is fractionated into a first fraction consisting of gasoline and lower boiling components, a second fraction, the residuum, having a normal boiling point greater than about 700/sup 0/ F. (370/sup 0/ C.), and a third fraction, the middle and heavy distillate, consisting of the remainder of the effluent of the first hydroprocessing stage. The second fraction undergoes hydrocracking in a second hydroprocessing stage with recycle of the effluent from said second hydroprocessing stage to the fractionation zone, and the third fraction undergoes hydrocracking in a third hydrocracking stage.
Assignee:
Chevron Research Co.
Patent Number(s):
US 4404088
OSTI ID:
5515710
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYTIC CRACKING
CHEMICAL REACTIONS
COAL TAR OILS
CRACKING
DECOMPOSITION
DISTILLATES
EFFICIENCY
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROCRACKING
NAPHTHA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PRODUCTION
PYROLYSIS
THERMOCHEMICAL PROCESSES