The pressure difference in the solvent regeneration tower is too high
Thread Content
Dear seniors, the pressure difference in our regeneration tower is too high – it’s at 40 kPa. What should we do to address this and prevent it from happening again? Thank you
High load, or foaming of the amine solution.
What pressure difference does 40Kpa refer to? The top of the tower and the bottom of the tower?
Does this phenomenon occur continuously or intermittently? Are there severe fluctuations in liquid level?
The amine solution system foams; an antifoaming agent is required.
If it’s at the top of the tower, it’s possible that salt has formed in the packing there; increasing the reflux temperature at the top of the tower to 44-46 degrees might help. If that doesn’t work, then suspend the reflux at the top and use steam from the bottom of the tower to resolve the issue. But when performing this operation, be careful of the liquid carried in the gas coming from the top of the tower.
First, appropriately reduce the load； Second, increase the filtration of the rich liquid ； Third is to reduce backflow
If the pressure difference fluctuates greatly, check whether the amine solution is foaming; if it remains high, determine whether the gas-phase load has exceeded the limit.