In boiler systems corrosion resulting from carbon dioxide is most often encountered in the condensate system. Because feed water deaeration normally removes carbon dioxide from the boiler feed water the presence of the gas in condensate is typically due to carbonate and bicarbonate decomposition under boiler conditions.Get a Quote
Apr 29 2020 · Presence of corrosive gases such as Oxygen (O2) Carbon Dioxide (CO2) Hydrogen Sulphide (H2S) in the boiler water. Sludges of bicarbonate and carbonate. Low PH. Low feed water temperature. Acidity imparted to water due to decomposition of Carbon Dioxide (CO2) or Hydrogen Sulphide (H2S) 7.Dissolved solids.Get a Quote
Makeup water treatment to the steam generators is often limited to sodium softening which allows all other impurities in the raw makeup to enter the boilers. Typically included in these impurities is bicarbonate alkalinity (HCO 3 ) which when subjected to boiler heat decomposes to carbon dioxide (CO 2) that exits the boilers with steam.Get a Quote
Mechanical deaeration is the first step in eliminating oxygen and other corrosive gases from the feed water. Free carbon dioxide is also removed by deaeration while combined carbon dioxide is released with the steam in the boiler and subsequently dissolves in the condensate. This can cause additional corrosion problems.Get a Quote
Dissolved gasses such as oxygen and carbon dioxide will react with the metals in the boiler system and lead to boiler corrosion. In order to protect the boiler from these contaminants they should be controlled or removed trough external or internal treatment. For more information check the boiler waterGet a Quote
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