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How to prevent corrosion of the tube bundle in the overhead cooler of a heavy oil catalytic fractionation tower?

2026-04-14View Original

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The image below shows the tube bundle of the overhead cooler (carbon steel) in the heavy oil catalytic fractionation tower of a petrochemical company, which has been in use for over 2 years. The shell side is the vapor and oil at the top of the tower, while the tube side is the circulating water. Severe corrosion and scaling have occurred on the inner and outer walls of the tube bundle. In such an operating environment, how is it best to prevent corrosion of the tube bundle?

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