Fluctuations in MDRA decarburization liquid level: How to add defoamers
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The liquid level in the MDEA decarboxylation unit fluctuates from time to time, but it returns to normal after adding an antifoam agent. Has the solution formed bubbles? What are the amount and frequency of defoamer addition? The pressure difference in the regeneration tower is generally 2-3 KPa.
Is there an issue with the concentration ratio of the amine solution, and is the circulation volume too high?
Concentration: 30-35%, circulation rate: 750-800, air intake volume: 160,000 standard cubic meters