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NACE RP0590 30 Years Later – Current Trends in Deaerator Damage Mechanisms

After several catastrophic deaerator failures in the 1970s and 80s a NACE task group was formed to conduct an organized in-depth study into the causes of the ruptures. The major accomplishment of this group was developing NACE standard RP0590 (now SP0590) “Recommended Practice for Prevention Detection and Corrosion of Deaerator Cracking” which was first released in 1990. Almost thirty years later there are still serious damages occurring in deaerators and they still rupture from time to time. This paper discusses the damage mechanisms that are still occurring and what concerns are still relevant today. One issue is that flow-accelerated corrosion is a much more prominent mechanism now than it was during the initial studies. Another is why deaerators operated for 60 years before they began to fail. Case studies are presented from the power and pulp and paper industries.

Product Number: 51319-13507-SG
Author: Catherine Noble
Publication Date: 2019
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