"Corrosion of 90-10 Cu-Ni tubes in h3S+HCN+Aqueous NH3"

Question:

"The fractionator overhead condensors in our catalytic cracking unit(of our oil refinery) have 90-10 Cu-Ni tubes. We are experiencing thick adherent scaling on the external surface of the tubes which eventually lead to tube leaks. Could you give me the mechanism of deterioration of 90-10 Cu-Ni tubes in h3S+HCN+Aqueous NH3 atmosphere?"

Answer:

Copper usually experiences uniform corrosion and is not particularly resistant to h3S and ammonia-based aqueous environments.

 

 << return to the previous page ::

 

Contact Us

If you have questions or need our depth of experience to help with your issues...

Call us: 713-993-7007

Email us: info@hghouston.com

News

Developing and maintaining piping classes can be costly.  To take the pa...read more
In April 2021, The Hendrix Group will make a number of process and corrosion ...read more

View all articles

Stay Current

Sign up for our quarterly newsletter

covering updates on corrosion

Sign Up