Foaming of MDEA solution
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How to determine foaming in MDEA solutions
Foaming in MDEA solutions can usually be determined by observing whether bubbles are formed. During the operation, if abnormal foam is observed on the surface of the solution, or if a large number of bubbles are generated during flow, it may be a foaming phenomenon. At the same time, if there is a sudden change in pressure inside the device or unusual noises, it should also be considered whether this is caused by foaming. .
Check whether the pressure difference at the observation tower rises suddenly
Foaming can cause corrosion issues; check whether the pressure differences in equipment such as tower filters and heat exchangers are normal, as well as whether there is liquid present in the gas exiting these devices
It is mainly necessary to determine this by examining the differential pressure in the absorption tower or regeneration tower. At the same time, fluctuations in the liquid level of each tower, an increase in liquid carried over to the separation tank after the absorption tower, and solution sampling for analysis are important factors to consider. If any of these conditions are present, foaming is likely occurring; in such cases, antifoam agents should be used, the load should be reduced, solution filtration should be intensified, and the composition of the raw gas as well as the filters need to be checked. The iron content in the solution should also be analyzed, and samples should be taken to check whether the solution contains oil or has changed color
What antifoam should be used? Looking for recommendations
Provide MDEA solution, dimethyldisulfide, molecular sieve, activated carbon, 18853087951
The MDEA purification service is worth considering; we are able to remove most HSS and small molecules in one go, restoring the amine solution to a level close to that of fresh amine solution