How to address pipeline corrosion caused by dry gas soot blowing in boilers

2017-10-30View Original

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Catalytic unit boiler systems generally use nitrogen and purified dry gas for soot blowing; nitrogen-based soot blowing increases the load on the plant’s utility systems, while the use of purified dry gas leads to frequent corrosion of the pipelines, requiring regular welding repairs and thereby increasing the risks associated with the operation of the unit. How to resolve this contradiction? Should nitrogen be used for purging after dry gas soot blowing, or should heat tracing be applied to reduce dew point corrosion?

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How to address pipeline corrosion caused by dry gas soot blowing in boilers

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