Corrosion in the wet flue gas desulfurization units of petrochemical catalytic cracking plants is one of the main factors causing long-term operational problems

2025-05-13View Original

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The flue gas from catalytic cracking (FCC) regeneration contains large amounts of harmful substances such as Sox, NOx, and particulates. To meet national and local environmental emission standards, refining companies have installed desulfurization and dust removal devices for treating the flue gas generated in catalytic cracking units, among which wet desulfurization technology is widely used. However, due to the complex and harsh corrosive environment within the flue gas desulfurization unit, the unit has gradually shown certain shortcomings during operation; in particular, unplanned shutdowns caused by corrosion issues have posed challenges to the safe, stable, and long-term operation of the FCC unit.

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Corrosion in the wet flue gas desulfurization units of petrochemical catalytic cracking plants is one of the main factors causing long-term operational problems

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