Corrosive environments experienced in FGD applications

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:80137

Wess, T J ^[1]; Crum, J R; Shoemaker, L E ^[2]

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1. Seminole Electric Cooperative, Inc., Tampa, FL (United States)
2. Inco Alloys International, Inc., Huntington, WV (United States)

A variety of corrosive environments are encountered in flue gas desulfurization (FGD) systems. Some are intentional, such as the limestone slurry used in the absorber to remove SO{sub 2} gas, and others are unintentional, such as acid condensate in the outlet ducting and chimney. These acid condensate solutions are by far the most corrosive and most unpredictable. Condensate samples have been taken from various locations in an operating FGD unit and associated equipment. Actual samples have been taken from a low point in the bypass duct, the main outlet duct and the chimney flue drain sump. These samples were analyzed for pH, chloride and other constituents to determine the corrosivity of the fluids. These results were then related to performance of various alloy components in the system and to test samples exposed at representative locations in the Seminole Generating Station.

• OSTI ID: 80137
• Report Number(s): CONF-940222--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
36 MATERIALS SCIENCE
CARBON STEELS
COAL
CONDENSATES
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
DESULFURIZATION
EXPERIMENTAL DATA
FLORIDA
FLUE GAS
FOSSIL-FUEL POWER PLANTS
HASTELLOYS
INCOLOY 825
INCONEL ALLOYS
POLLUTION CONTROL EQUIPMENT
STAINLESS STEEL-316