Hello,
We observed a leakage in the shell of Ageing Drum Phthalic Anhydride (PA) plant.
After inspection of inside of Carbon Steel material shell, severe corrosion can be also seen in other areas. I consider that phthalic acid occured and metal corroded.
Operation team indicates that there was not any improper operation and operation temperature is 270C. So, they say that there is no water and acid formation.
What is the reason of this corrosion in Ageing Drums? Do you have experience or knowledge?
Best Regards,
We observed a leakage in the shell of Ageing Drum Phthalic Anhydride (PA) plant.
After inspection of inside of Carbon Steel material shell, severe corrosion can be also seen in other areas. I consider that phthalic acid occured and metal corroded.
Operation team indicates that there was not any improper operation and operation temperature is 270C. So, they say that there is no water and acid formation.
What is the reason of this corrosion in Ageing Drums? Do you have experience or knowledge?
Best Regards,