The pressure drop at the bottom of the distillation tower is increasing
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What is the reason? Salt has formed?
There must be many reasons; an increased amount of processing also has an impact, and a large amount of cold backflow also has an effect
1.8 million tons; the processing volume is only 125 – operating at low load, with cold reflux completely shut off!
It is necessary to first determine which part experiences an increased pressure drop, the middle or the top
First, figure out what this (bottom of tower pressure drop) means. . . . Is it the pressure drop in the distillation tower? If so, it’s definitely due to an obstruction in the float valve; it could be salt buildup or dirty trays, and cleaning the tower will resolve the issue
It’s more likely that salt will form