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The CO2 removal system in an ammonia plant experienced failures within the first year of operation. The 2nd regenerator tower developed a leak due to inadequate design of the fluid entry zone and supports for the stainless steel shroud, which damaged the protective passivation layer and led to rapid corrosion. Other minor issues were also found. The design was modified with a Norton-type inlet and annular passage to prevent direct impingement and disturbance of the passivation layer to avoid future corrosio

Author

gurdeepsarora8738

Language

EN