Some issues regarding acid mist
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1. The difference between acid mist and acid foam. 2. Why does the acid mist level exceed the limit in drying towers? 3. The damages caused by acid mist to drying towers, screens, SO2 fans, conversion units, and other related equipment, along with the principles behind these damages
The difference between acid mist and acid foam lies in the different diameters of their droplets
Acid mist can corrode the fan and the heat exchanger behind it, and it can also cause the catalyst to disintegrate, leading to increased resistance and reduced activity. . .
Bro, what’s the principle behind corrosion? Normally, dryers use metal wire mesh demisters, which are resistant to corrosion. I heard it has something to do with acid mist altering the dew point
Acid mist and acid foam have different diameters, which results in varying resistance in the tower; acid mist is more difficult to capture. The drying tower is used to capture acid foam, and the temperature there is low
In some cases, the acid mist is captured and turns into acid, with a low concentration.
So, what’s the acidity level? Has The Hero of a Flash tried it? If the acid mist collected results in dilute acid, it means that the acid mist carried in the gas is dilute acid, and in that case its corrosiveness is indeed extremely high!
There is a diagram in the book \"Supplementary Texts on Fertilizer Engineering – Sulfuric Acid\" that shows the acid concentration when the acid mist is captured.