CORROSION CONTROL COATINGS PROVIDE CRITICAL PROTECTION FOR POWER PLANT FGD SYSTEMS

摘要

One of the main problems to put flue-gas desulfurization plants out of operation is corrosion. Severe problems in FGD installations are caused when condensates of acids are formed, which accelerate pitting and crevice corrosion, particularly in scrubbers with high sulfate solutions. Scrubbers lined with 2205 duplex stainless are among the most vulnerable, failing frequently due to pit or crevice corrosion, from both chlorides and fluorides. A recent article in the Pittsburgh Post-Gazette