Corrosion condition of the inner wall surface of the atmospheric and vacuum distillation overhead water separator in the petrochemical industry
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The image below shows the corrosion on the inner wall of the vacuum distillation overhead water separator in petrochemical industries. The structural type is a horizontal tank, with specifications of φ2400×12×10048. The material is 16MnR, and the operating media are gasoline, oil-gas, and water. Temperature is 42 degrees, pressure is at normal level. This tank has been in use for over 2 years, and uneven pitting has appeared on its surface. It is recommended that the inner walls of such containers be coated with paint to address corrosion issues
It is recommended to apply a specialized anti-corrosion coating to the inner wall of the vacuum distillation degassing and water separation tanks in the petrochemical industry. Select an anti-corrosion coating suitable for gasoline, oil-gas, and water media, as well as one that can withstand temperatures of 42 degrees and normal pressure conditions. Before painting, corrosion pits and other surface defects must be thoroughly cleaned and repaired to ensure good adhesion of the coating to the tank wall, thereby extending the tank’s service life. .