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Blowdown system

#7812

Anonymous

Blowdown System

Hot Contactor
Strainers needed to remove coke fines
Proper temperature control
– Desuperheater on inlet
– Heater on Contactor
Bypass for temperature control
During steam and water quench use a throttling valve to control pressure and prevent foamover

Fin Fan Condensers
Fin Fan LGO wash of tubes
Block Valves for isolation and cleaning

Settler
Oil/Water Separation
– Add demulsifier at times
External wash depends on location of bundles
Recycle of light oil to hot contactor is employed by Conoco

WarmUp Condensate
Gravity flow from coke drums to hot contactor is the best design
Do not use a warm-up drum

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