What causes foaming in the absorption tower? !
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This post was last edited by juniger on 2017-1-11 17:22. NaOH is used to absorb the acid gas, and a packed tower is employed for this purpose. The NaOH concentration is not high, around pH 10. It has been found that foaming often occurs in the packed tower, resulting in a high pressure drop across the tower. The packed tower is still far from the flooding velocity. After replacing the water, it no longer bubbles and can operate normally. What is the reason for this? Is it NaOH causing the foaming? ! Thank you. . .
{:3_54:} Your exhaust gas isn’t clean; it contains too many organic impurities. Find a way to remove those organic substances from the exhaust gas
Alkalis tend to cause bubbles; I remember that when designing towers, attention must be paid to the foaming factor
Currently, in China, much of the design work for absorption towers is done in a haphazard manner
Fluctuations in the liquid level indicate foaming, and the degree of foaming is determined solely by the foaming factor – the lower this factor, the more likely foaming will occur. I’m not aware of the value of the foaming factor for the fluid inside your absorption tower; you might consider using defoamers or other additives to address this issue.
Keep the solvent clean; you can try adding some antifoam agent
The main thing to watch out for is flooding, but we are still a long way away from that happening. . .
What you say is true; especially in the field of environmental protection, many people are not professional and just aim to cheat people out of money. . .
This is a packed tower; there’s no need to talk about a foaming factor here – the foaming factor applies only to tray towers. . .
Are there any good defoamers? !