For the water coolers in the reduced-pressure and atmospheric-pressure units of petrochemical plants, applying epoxy-amine coatings to the outer surface of the tube bundles does not yield good results
Thread Content
For the water coolers in the atmospheric and vacuum distillation units of petrochemical plants, applying epoxy-amine coatings to the outer surface of the tube bundles does not yield good results. The oil in these units is similar to heavy diesel; its temperature is 113 degrees, and the pressure is 0.69 MPa. During inspections and tube bundle checks conducted more than 2 years after application of the coating, it was found that the coating had completely failed; the peeling and detached parts of the coating were entirely gone.
It may be due to the fact that epoxy amino coatings are not suitable for high temperatures and certain chemical environments. It is advisable to use coatings that are resistant to high temperatures and chemical corrosion, such as silane or fluorocarbon coatings, and to ensure proper application and maintenance of the coating. .