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Corrosion of low-temperature hot water heat exchangers for overhead gases in catalytic distillation towers for heavy oil in the petrochemical industry

2026-04-13View Original

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The image below shows the corrosion condition after 2 years of use of a low-temperature hot water heat exchanger for the overhead vapor and oil in a catalytic distillation tower used in the petrochemical industry; the fluid flowing inside the tubes is low-temperature hot water, while the fluid flowing outside the tubes is the vapor and oil from the tower overhead.

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