Pyrophoric Iron Formation

[MaNaTMoS]

Hello, Eng-Tips

Can anyone suggest website or write down a consequent formulas on exact way how FeS is formed in CDU overhead coolers?
When looking at Pourbaix diagram of Iron, several corrosion/solution/stabile Fe areas can be noticed. Please describe this phenomenon which causes serious reduction of cooling capacity.

Regards

 

[redtape]

There's a very popular article on this topic at:

http://www.cheresources.com/ironfires.shtml

Check it out and see if you find the information that you're looking for. The author of this article is very knowledgeable as well if you have additional questions.

 

[25362]

Although it deals with various kinds of corrosion effects on processing units I think you"ll find interest in the following site:

http://www.nace.org/nace/content/technical/C2003Minutes/stg34/TEG205XMinutes.htm