Water quality in the reflux tank of atmospheric pressure equipment
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What are the hazards of a pH value of 10 in the water quality of the reflux tank in an atmospheric pressure system?
The high alkalinity causes alkaline corrosion; in severe cases, leakage occurs, preventing the device from operating safely.
Check the pH value, dosage, and iron ion levels of your injection
To determine whether the dosage of the aid is too high, it’s best to observe the changes in the iron ion concentration in the water at the top of the tower!
A too high pH value leads to waste of neutralizing agents. Furthermore, when PH is greater than 7.6, type II wet hydrogen sulfide corrosion occurs, leading to increased corrosion. Sinopec has clear regulations regarding process anti-corrosion.
1. Emulsification; high oil content and COD in the wastewater. 2. It may cause under-scale corrosion. A pH value of 10 is a bit high; if ammonia is injected at the top of the tower, a pH value of 10 is not a problem. However, when corrosion inhibitors are used, the pH value needs to be kept lower. \"Alkaline corrosion\" is a rather sophisticated term; in an alkaline environment, iron cannot react directly with the alkali, which makes corrosion difficult to occur. Therefore, \"alkaline corrosion\" needs to be properly explained.