Large pressure fluctuations inside the 70t/h solvent regeneration tower
Thread Content
The pressure inside the 1.70t/h solvent regeneration tower fluctuates significantly; the pressure at the top of the tower varies frequently between 0.070 MPa and 0.09 MPa, and the cause has not been identified. 2. After adding a large amount of MDEA to the amine solution, its concentration failed to increase and remained around 15%.
Is there a line from the reflux tank to the stripping unit? The concentration can be increased using this wire
It’s mainly because the source of leakage hasn’t been found, and water keeps being added as a result
Relying solely on the liquid level in the solvent buffer tank can sometimes be inaccurate; a high liquid level in certain desulfurization towers or flash tanks, along with high circulation rates, can all affect the liquid level in the solvent tank
It should be accurate if we consider a period of one month
It has little to do with the duration of time; the readings will be accurate if the circulation rate and liquid level of the desulfurization unit are not adjusted, but they will not be accurate if those parameters are adjusted
First, set the pressure control valve to manual mode to observe the pressure changes, and use the process of elimination to identify the cause!
If he makes adjustments, the liquid level will drop to a certain level at most and won’t continue to fall; currently, the level is kept dropping
The cause of the pressure fluctuations has been identified
Why not say it? Is there any inconvenience?
The processing load is too low, resulting in an imbalance between the gas and liquid phases; now that the amount of acidic gas has increased, the pressure has stabilized.