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Greg Epelbaum, Boiler Engineering Manager, Covanta EnergyEric Hanson, Boiler Reliability Director, Covanta EnergyDr. Michael Seitz, President AmStar Surface TechnologyMay 12, 2010, Orlando, Florida, USA Fireside corrosion is the biggest challenge for EfW boilers MSW is the most heterogeneous, unpredictable fuel, which constantly changes with weather, seasons, locations, economy, politics, social behavior, Fireside corrosion is typically driven by the following 4 simultaneously occurring mechanisms: corrosion by gaseous phase including active oxidation by Challenges for EfW Boiler Reliability corrosion by gaseous phase including active oxidation by chlorine (HCl, Cl2) ; condensation of alkali and heavy metals chloride and/or sulfates; deposit induced corrosion and sulfidation of condensed chlorides ; molten salts eutectics cause dissolution of protective oxide scales and tube metal Intensity of corrosion can be controlled to a certain degree by a proper design for an EfW Boiler : combustion system and furnace design.

• The material development of Alloy 888® was initiated in 2002, in a partnership between Special Metals Welding Products Company and ... with Inconel 625 weld ...

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