51315-6017-New Hibernation Systems for Corrosion Protection of Internal Substrate Surfaces of Chemical Processing Plants

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Product Number: 51315-6017-SG

ISBN: 6017 2015 CP

Author: Efim Lyublinski

Publication Date: 2015

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New Hibernation Systems for Corrosion Protection ofInternal Substrate Surfaces of Chemical Processing PlantsProf. Efim Lyublinski1 Eng. Terry Natale1 Eng. Wade Rohland1Eng. Yefim Vaks1 Dr. Stephen Woessner11Northern Technologies International CorporationZerust Oil & Gas23205 Mercantile RoadBeachwood OH 44122 USAEng. Ronnie Singh2 Eng. Edwardo Tanabe22ZERUST BrazilEng. Marcelo Schultz33Petrobras BrazilABSTRACTCorrosion protection of large equipment’s internal surfaces (distillation towers pipelines tanks boilers heat exchangers etc.) during storage transportation/shipping and long term mothballing (up to 10 years) is a worldwide problem. In many cases well-known technology for replacement of the environment with nitrogen gases cannot be applied and are not always efficient enough. In addition to their limited protection ability these approaches tend to be cumbersome complicated labor intensive very expensive and create safety issues. This paper describes a system that reduces the environment corrosiveness by decreasing the relative humidity (RH) to a level that allows achieving corrosion protection of different metals in any sealed enclosures. In addition this new system delivers the volatile corrosion inhibitors (VCI) into enclosures that increases the corrosion protection efficiency and decreases the corrosion if the enclosures have some leakage. This system creates the required RH and concentration of VCI very fast. It is compact equipment and can be moved for applying corrosion protection in different locations. In the paper we will present a mobile system that can be periodically used for many kinds of equipment in different facilities. A real system designed manufactured and applied for corrosion protection of mothballing equipment in one refinery will be presented and discussed.Key words: environment corrosion protection inhibitor dehumidification equipment enclosures mothballing storage transportation