|XT & VEF for an absorber
|High temperature protection in a desulphurisation plant.
View of the exterior of the absorber tower – above
View of the exterior of the absorber tower – below
The inspection highlighted the coating system that had been in place for just 3 years was suffering severe breakdown – especially in the upper areas where the working temperature is close to 200 C. The project scope then was agreed to be the complete refurbishment of the internal coating of the absorber.
■Apply Corrothane XT to upper 170m2, and Polyglass VEF in the lower 400m2 to a minimum dft of 1.25mm.
■Spark tested and thickness checked 100% of the applied coating to ensure no holidays.
Corrothane XT is a cold cured vinyl ester and polyurethane hybrid developed for coating steel where high temperature resistance is required – and Corrocoat seemed the obvious choice for the high temperature sections.
Reports from the power station remain positive, and as a result of no breakdown whatsoever in the first year of operation with the Corrocoat system, Corrocoat have been awarded the refurbishment project of another similar absorber tower.