Corrosion condition of the inner wall of petrochemical vacuum towers
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The figure below shows the corrosion on the inner wall of oil and vacuum distillation towers, under conditions involving crude oil, steam as the medium, a temperature of 395 degrees, and full vacuum pressure.
The inner wall of the vacuum distillation tower is prone to corrosion when dealing with constant-bottom oil and vapor at high temperatures of 395 degrees and in a complete vacuum, due to both the high temperatures and the inappropriate choice of material. This type of corrosion is usually caused by thermal stress, chemical reactions, or corrosive components in oil and gas (such as sulfides). To reduce the risk of corrosion, it is advisable to use high-temperature and corrosion-resistant lining materials, as well as to conduct regular inspections and maintenance. .