Lining solutions quickly return corroded tanks to service

摘要

When protecting two carbon steel (CS) neutralization tanks against corrosion and quickly returning them to service was a priority for a beer brewery in Germany, the solution was to apply a protective epoxy lining and accelerate the cure time by filling the tanks with hot air. The brewery's neutralization tanks are inspected every three years. During a scheduled inspection in 2011, the brewery discovered that the neutralization tanks were experiencing extensive internal corrosion damage after 60 years in service as a result of deteriorated internal linings, explains Christian Warga with Karl Schumacher GmbH & Co. (Essen, Germany), the coatings contractor for the project. Warga comments that the customer had changed the cleaning material used in the production processes. Addi-tionally, oxygen was bubbled throughout the tank for neutralization.