What are the phenomena of catalyst interruption caused by the catalytic cracking riser?
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What are the phenomena of catalyst interruption caused by the catalytic cracking riser?
The phenomena include: a rapid drop in reaction temperature； Reaction pressure decreases ； Temperature of the regenerative bed drops ； The inventory in the stripping section of the settler is declining rapidly ； The centrifugal separation pressure drop of the settler decreases
Coking occurs in the lift pipe, resulting in an increased pressure drop and poor fluidization; the reaction temperature drops, the pressure drop of the regenerated catalyst decreases or goes to zero, and catalyst supply is interrupted.
If the valve is set to automatic mode, it will shut off automatically