RECYCLE
AND
WAKE UP
HYDROGEN
HOT FLASH
VACUUM
HOT FLASH
VACUUM
VACUUM
RESOLT
CHARGE
HOT FLASH
DRUM
COLD
SEPARATOR
COLD FLASH
DRUM
DISBREAKER
FLASH CHAMBER
GAS AND
DISTILLATE TO
COLD FLASH DRUM
COLD
DUEHOH
RECYCLE
HYDROGEN
GAS TO DMC
DISTILLATION
TO DMC
WAKE UP
HYDROGEN
RECYCLE
HYDROGEN
DISEREAKER FEED
SURGE DRUM
DISEREAKER
HEATER
FLASHED AND
TO VACUUM
DISTILLATION
UNIT
REACTOR
HYDROCRACKER
REATER
VACUUM
BOTTOM
FEED
Fig. 15
Typical residuum hydrocracking configuration
554
D.S.J. Jones