What type of reflux system is used for the secondary tower slurry reflux in your facility?
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For double riser catalytic cracking units, the oil slurry reflux methods in the secondary column include gravity flow method and pump-driven reflux method. We use the self-flowing method, but what if the self-flowing channels get blocked frequently?
The main cause of the blockage is probably a high solid content; addressing this issue is key. Of course, switching to forced circulation will help alleviate this problem. Let’s see which approach – adjusting the energy consumption or the solid content – is more effective
Two lift pipes – is one of them for gasoline?
Yes, the heavy oil lift pipe and the gasoline lift pipe