Distillation tower
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The distillation column initially performed well in terms of separation, but the separation efficiency declined after it was restarted. What could be the reason?
All parameters are the same as normal
Has the feed composition changed? Has this been analyzed?
In the case of a packed tower, it could be that the packing is blocked, or the packing has shifted, or it has been damaged by heat, or there is wall flow or channeling within the tower.
When one tray in a normal column collapses, the impact is generally not significant; designs usually include a margin for such situations, and the likelihood of tray blockage is relatively high
When one tray in a normal column fails, the impact is generally not significant; designs usually include a margin for such situations. The likelihood of tray blockage is higher, however :)
If it’s not working well after starting to use it again, what should I do? Is there liquid accumulated on the filler that hasn’t drained away?