What will happen to the pressure difference in the exhaust gas absorption tower due to solvent foaming?
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The last edit to this post was made by SulfurBlind on 2015-9-24 at 10:07. I would like to ask: is the pressure difference in the exhaust gas absorption tower higher when the amine solution is stable? Is it still high when it’s unstable and there is foaming? Why?
Of course, this is due to the high differential pressure during amine foam generation. For this reason, over the past decade or so, the liquid level in our amine absorption towers has been maintained between 20% and 40%.
bg8.png I used to think the same way at first. Our regeneration tower sometimes foams, which is manifested as fluctuations in pressure difference with an upward trend. But this is not the case for the absorption tower; in reality, after adding the defoamer, the pressure difference in the absorption tower increases by about one or two KPa, almost simultaneously with the decrease in the pressure difference in the regeneration tower. This phenomenon has been verified multiple times. In other words, the absorption tower and the regeneration tower are contradictory in nature. I don’t understand why the absorption tower is acting like this