Regeneration tower flooding
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There has been a situation of tower flooding in the solvent regeneration tower recently; seeking assistance
A situation of overpressure in the solvent regeneration tower usually occurs due to improper operating conditions or equipment failures. First, it is necessary to check whether the pressure and temperature inside the tower are normal, to ensure stable feed and heat supply. Secondly, check for any blockages or damage to the internal components. Adjusting operating parameters or performing equipment maintenance may be the key to solving the problem. It is recommended to conduct a detailed analysis of the processes within the tower and the properties of the materials, making adjustments in a timely manner to avoid repeated tower flooding. .
Let me mention a few reasons briefly. First, salt accumulation on the tray reduces its porosity; at high line speeds, entrainment occurs, and eventually the tower is flushed. Second, it might be that your solvent is of poor quality and prone to foaming, or it may have accumulated impurities over time, leading to foaming and entrainment. Another possibility is that the concentration of monoethanolamine is too high; other factors are less likely to be the cause
Monitor the thermally stable salts. If the thermal stability salt value is above 1, considering the use of a new replacement agent is advisable.
I would like to ask how thermal stable salts are monitored? What are the monitoring standards?
Was there a sudden increase in pressure difference across the tower before it collapsed? If so, then check the composition of the rich liquid, or add an antifoaming agent to see if that helps
Foaming of the solution requires improved filtration and purification; blockage of the tray plates leads to an increase in tower pressure
Switch to an anti-clogging and anti-foaming tray~
Contact the solvent manufacturer, send them samples for their assistance; they can remove salts (usually for a fee)