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Best Practices and Pitfalls for Decoking & Inspection in Delayed Coker Heaters

Serpentine coils in Delayed Coker Heaters are challenging to clean and inspect even while utilizing today’s latest technologies.  Extensive fouling on the coils interior surface often warrants cleaning intervals of two years, or less, depending on online spalling capabilities. Mechanical decoking pigs are now commonly utilized to clean fouling (aka decoking), from the heater coils […]

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