Study identifies new parameters for sourwater corrosion

As part of an ongoing sourwater corrosion study, 15 major refiners and engineering service companies have identified two seldom considered parameters in sourwater corrosion: wall shear stress and process creep.These same companies formally launched a 2-year industry-wide study at the beginning of this year to determine the causes and solutions to refinery sourwater corrosion. Pooling their corrosion data, they hope to better predict and control ammonium bisulfude corrosion via material selection, process-unit operations control, and chemical treatments.Sourwater is ammonium bisulfide, a corrosive produce resulting from sulfur removal in refineries that can cost US refineries up to $50 mil...

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