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Home  »  case studies • Oil and Gas   »   Preservation of Heat Recovery Steam Generation Tube Bundles
Published by Cortec Middle East on December 11, 2019
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  • case studies
  • Oil and Gas
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Preservation of Heat Recovery Steam Generation Tube Bundles

Preservation of Heat Recovery Steam Generation Tube Bundles

Challenge

Ten heat recovery steam generation tube bundles were fabricated by STS in five different modular designs. The client required protection of the internal surfaces of the heat recovery steam generation tube bundles.

Application

During the hydrotesting process, VpCI®-649  was added at 0.25% by weight to provide corrosion protection of the internal systems. Hydrotest water was drained and the system was air dried. VpCI®-309SF was fogged into the coil bundles at a rate of 350gm/m3 using compressed air.

VpCI®-649 combines contact and volatile corrosion inhibitors along with antiscalants in a non-toxic formulation that is free from nitrates, phosphates, chromates, or heavy metals. VpCI®-309SF provides up to 24-month continuous protection.

Conclusion

The client was satisfied with the hydro test additive and dry powder preservation products used as the alternative traditional methods like achieving negative dew points with Superdry air or preserving under nitrogen and maintaining that atmosphere are costly and difficult to maintain. Cortec’s preservation system is time-proven, does not need maintenance and minor losses within the system are accounted for in the dosages provided.

Location – Major company

Date 2015

Distributor Texel Energy Services

Products 

VpCI®-649

VpCI®-309SF

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Cortec Middle East
Cortec Middle East

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