Tech Process.

Boiler Feed Water Treatment Deaeration Process: ## The process through which the dissolved gases are removed from water is called "Deaeration". The equipment, which is used in this method, is called "Deaerator". Why do we use deaerators?... T he Deaerator (DA) tank uses steam to preheat boiler feedwater to a temp. at which dissolved O2 & CO2 will become separated from the feedwater before it is pumped to the boiler. The purpose is to protect the boiler and steam/condensate piping from corrosion that would be present when the water evaporates into steam.additional benefit is that the amount of chemicals used to treat the boiler water can be reduced.  # Dissolved CO2 combines with water to form carbonic acid that causes further corrosion.  # Working Principle of Deaerators :- 1️⃣ by Henry’s Law- Accordind to William Henry state that gas solubility in a solution decreases as the gas partial pressure above the solution decreases. In simple ...