What will be the result if the dry acid content is increased to 95%?
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Generally, the dry acid level is kept around 93%. What effects will occur if this level is increased to 95%, and what adverse reactions might arise?
If acid backflow occurs after the pump, the amount of acid backflow will increase, affecting the amount of acid that reaches the tower; higher acid concentration leads to an increase in water dosage, which has a certain impact on the equipment.
It is certain that acid feeding after the pump will affect the amount of acid entering the tower; alternatively, acid feeding after the tower can be used to avoid such an impact on the amount of acid in the tower.
It’s nothing serious; our process controls are set at 95% for 1# taigefor
In our company, the concentration of the dried acid is still maintained at 96%, and the results are good.
It’s okay; making appropriate adjustments according to the requirements of the manufacturing process is permitted. But don’t let the fluctuation be too large, otherwise it will cause corrosion to the anodic protection 1# taigefor
There’s nothing wrong with it; it’s just necessary to strictly control the temperature of the acid fed into the tower. When the acid concentration remains constant, the temperature of the acid fed into the tower affects the partial pressures of water vapor and sulfuric acid vapor above the sulfuric acid liquid level. It’s better to keep the acid temperature as low as possible. . .
Our drying acid has a concentration of 98%; for sucking and drying, we use the same circulation tank.
Generally speaking, for the efficiency of drying flue gas, a higher sulfuric acid concentration is not necessarily better. In terms of concentration alone, 92.5% yields the best drying effect. However, the higher the sulfuric acid concentration, the faster the drying speed. But at the same time, a higher concentration results in more acid foam, and this foam is finer as well. The greater the amount and fineness of the acid foam, the less effective the foam trap at the top of the drying tower becomes, failing to meet the required standards. Therefore, taking various factors into account – namely the need to remove moisture without producing excessive foam – the concentration of the drying acid is generally set between 93-94%. This achieves the best drying results while preventing excessive foam formation. These are my personal opinions; please feel free to correct me.