1. Mechanisms of thermal insulation corrosion
1.1 Corrosion factors
1.1.1 Presence of liquid water under the insulation system
The prerequisite for lagging corrosion to occur is the presence of liquid water in contact with the metal surface, over a sufficient period of time for the effects of corrosion to manifest themselves. The arrival of liquid water in contact with lagged metal walls generally requires a leak in the insulation system.
There are many possible infiltration modes or sources of liquid water:
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Corrosion - Aging
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Mechanisms of thermal insulation corrosion
Preventing corrosion under thermal insulation
Bibliography
Websites
French Ministry of Ecology, Sustainable Development and Energy, ARIA database of feedback on technological accidents http://www.aria.developpement-durable.gouv.fr/ (site consulted in July 2014).
Events
Journées GEMER (Groupe d'étude des matériaux en raffineries), organized every two years (even-numbered years) by UFIP (Union française des industries du pétrole) and IFP Énergie nouvelles.
Standards and norms
- Petroleum, petrochemical and natural gas industries – Materials selection and corrosion control for oil and gas production systems - ISO 21457 - 2010
- Standard test method for chemical analysis of thermal insulation materials for leachable chloride, fluoride, silicate and sodium ions - ASTM C871 - 2011
- Standard test method for evaluating the influence of thermal insulations on external stress corrosion cracking...
Directory
Documentation – Training – Seminars (non-exhaustive list)
CINI International Standard for Industrial Insulation, published by CINI (Committee INdustrial Insulation) https://www.cini.nl/en/
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