Catalyst into the fractionation tower!
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The centrifugation failure caused a large amount of catalyst slurry to be discharged into the distillation tower; everything taken out from the middle section of the tower was sludge, and cleaning it was very difficult. Does anyone have any good suggestions?
1. During normal operation, pay attention to changes in the solid content of the slurry; if it becomes too high, it should be removed promptly. 2. In the event of an accident, ensure that the pressure in the settler is higher than that in the regenerator. 3. There really isn’t much that can be done when such problems occur; the key is to learn from them and make fewer mistakes
The problem is right there: shut down for maintenance of the cyclone separator inside the settler!
The floating valves in the distillation tower are likely clogged and need to be cleaned. It’s advisable to conduct inspections on the slurry system as well as replace the pipelines
Reply 1# ybt5166889: I’ve never heard it described as being this serious before. There’s no good solution; the only option is to stop work for cleaning and maintenance. It is evident how important the construction quality and inspection quality of the centrifuge are. Take it as a lesson.
There’s no good solution; try using hot water under pressure
Our company has experienced the same type of incident; we also stopped operations and used electric heating for the pipelines, and it took some time before things were resolved
Cutting it open for cleaning must be quite dangerous. . .
There’s no other choice but to stop work; there’s nothing else that can be done