Abstract
AbstractWet scrubbing of flue gas to remove sulphur dioxide generates highly corrosive conditions in the operating plant. Conditions in the mixing zone are discussed in detail. Titanium has been evaluated and has been installed as a corrosion resistant liner in several major US plants. Competitive, cost effective installation has been achieved using Resista‐Clad Plate. Installation and seal welding techniques are detailed and discussed. Cost comparisons with other lining materials are given.Using five case studies the performance of titanium is considered in relation to operating environments and extraneous factors. Specific failures are commented upon in detail. The corrosion resistance of titanium to FGD environments, fluorides, and hot concentrated reducing acids is discussed. Plant monitoring is encouraged.Conclusions point to the overall satisfactory performance of titanium, despite the specific and localised failures experienced in service.
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