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English Translations » 【设备腐蚀】 » Coking and corrosion conditions on the inner wall surface of

Coking and corrosion conditions on the inner wall surface of the overhead of atmospheric and vacuum distillation towers in the petrochemical industry

2025-01-16View Original

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The image below shows the corrosion on the inner wall of the atmospheric tower in petroleum refining units. The structural type is vertical, with specifications of ф3200×12/14×25504. The material is 16MnR, and the operating medium is crude oil. Temperature 180 degrees, pressure 0.176 MPa. This tower has been in use for over 2 years, and the top of the tower is severely corroded, with uniform corrosion as well as ulcerated areas of corrosion. This type of corrosion falls under the category of HCl-H2S-H2O corrosion.

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Translated at 2026-07-26 08:55:47

Original: https://bbs.hcbbs.com/thread-5678654-1-1.html

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