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Corrosion Mitigation Strategies in Forced Oxidation Wet Flue Gas Desulfurization Absorbers Made of UNS S32205 Duplex Stainless Steel

Picture for Corrosion Mitigation Strategies in Forced Oxidation Wet Flue Gas Desulfurization Absorbers Made of U
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Product Number: 51315-5947-SG
ISBN: 5947 2015 CP
Author: Brett Tossey
Publication Date: 2015
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Utility companies in the United States continue to experience internal localized attack on duplex stainless steels wet flue gas desulfurization (WFGD) absorbers in forced oxidation service. Many utilities chose to mitigate internal corrosion on their absorber vessels to prevent potential safety hazards shell leaks and spray header failures. This paper presents brief case histories of corrosion mitigation strategies that were implemented by utility companies over the past 5 years. Four corrosion mitigation strategies were examined; internal linings nickel-based alloy wall paper cathodic protection and polishing the internal surface. The findings from visual inspections during site visits are presented.
Utility companies in the United States continue to experience internal localized attack on duplex stainless steels wet flue gas desulfurization (WFGD) absorbers in forced oxidation service. Many utilities chose to mitigate internal corrosion on their absorber vessels to prevent potential safety hazards shell leaks and spray header failures. This paper presents brief case histories of corrosion mitigation strategies that were implemented by utility companies over the past 5 years. Four corrosion mitigation strategies were examined; internal linings nickel-based alloy wall paper cathodic protection and polishing the internal surface. The findings from visual inspections during site visits are presented.
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