The uses of various nonmetallic protective linings in the major components of electric utility flue gas desulfurization systems are reviewed and some examples of organic (and inorganic) lining applications cited to illustrate field experience with lined carbon steel equipment, generally the most cost-effective corrosion control measure for such systems. The importance of good engineering design, proper surface preparation of the substrate (steel or concrete), skilled application and quality inspection of the lining systems is emphasized. Organic linings, either used alone or as membranes beneath inorganic systems, can economically protect the hostile environments of utility FGDS.

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