|Title||The Basics of Neutralizing Amines in Steam Line Treatment|
|Description||Boiler condensate water contains carbon dioxide (from the feed water alkalinity) which is corrosive to steel. If left untreated, condensate water can have pH’s of 5.0 to 6.5 which is corrosive to the steel piping in the condensate return lines and adds iron deposits to boilers.
Neutralizing amines are a common steam line treatment that can be fed in a water treatment solution along with other treatment chemicals or it can be fed direct to the steam header. When feeding the amine to the feed water system,<a href="http://www.irowater.com/Bactericide/DBNPA.htm">2 2-dibromo-3-nitrilo-propionamide dbnpa</a> it should be fed downstream of the deaerating equipment. The neutralizing amine is volatilized and carried out with the steam in the condensate to react with carbon dioxide. Different amines will stay with the steam (liquid –vapor distribution ratio) until it drops out of the steam and it is based on this ratio that we say whether an amine has a short run, medium run, or long run distribution. Many times amines are blended to provide a complete protection package (and we have many blends such as B-4524, B-4551, or B-4556 to name a few).
The four most common neutralizing amines (or amine blends) are ammonia, cyclohexylamine, diethylaminoethanol, and morpholine. Neutralizing amines are fed to maintain a pH of 8.2 to 8.6; however, in difficult to control systems a wider pH value of 7.6 to 8.6 may have to be used.
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