Clean Air
12001 Life Cycle Cost Benefits of Constructing an FGD System with Selected Stainless Steels and
Nickel-Base Alloys
Report published by PEI Associates, Inc. for the Nickel Institute and the American Iron and Steel
Institute, 1987. Life-cycle cost analyses of the use of stainless steels and corrosion-resistant alloys were
compared with those of nonmetallic lined-carbon steel in the construction of flue gas desulphurization system
scrubbers. It was found that the life-cycle cost of the corrosion-resistant alloys are often substantially
less than the costs for nonmetallic-lined steel. The benefits of using better materials of construction are
improved reliability and reduced downtime; even a minor improvement in these areas can add substantially to
the life-cycle cost savings. Additional savings can be achieved by selecting materials for individual
components in order to match the operating environment of the component with the characteristics of the
materials. Extensive field experience confirms the favourable conclusions of the cost analyses.
10023 Life-Cycle Cost Comparison of Alternative Alloys for FGD Components
By J.D. Redmond, R.M. Davison and Y.M. Shah, presented at Air Pollution Seminar, Buffalo, NY, U.S.A., Oct
1987. Life-cycle cost analyses of the use of stainless steels and other corrosion-resistant alloys were
compared with those of neoprene-lined carbon steel in the construction of FGD components. Although capital
costs of the FGD components constructed of stainless steel and corrosion-resistant alloys are generally
higher than those of the lined carbon steel components, the life-cycle costs are less in most cases, often
substantially less. Extensive field experience confirms the favorable conclusions of the study.
