Failure cause analysis of deaerator/sourgas stripper cylinder

A interesting paper in « Case study in Engineering Failure Analysis » published on ScienceDirect.com.

Circular penetrable cracks occurred at the converge region of upward acid media (H2S and HCOOH) in the opposite position of traverse vapor ingress pipe of the lower part of the upper sealing head of the deaerator/sourgas stripper during the operation of the deaerator/sourgas stripper of the ammonia unit in a chemical fertilizer plant.

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