Duct injection technology prototype development

Technical Report · Thu Aug 01 04:00:00 EDT 1991

DOI:https://doi.org/10.2172/6019612· OSTI ID:6019612

Harper, S L ^[1]

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1. Babcock and Wilcox Co., Alliance, OH (United States). Research and Development Div.

This report describes a test program conducted to determine the corrosion rate of materials in the dry scrubber or duct injection systems. Four materials were evaluated: 1010 carbon steel, Corten, 317SS and Hastelloy C-276. The results show that acidic conditions result in higher corrosion rates than alkaline conditions for all the materials. The carbon steel, Corten and stainless steel show moderate to heavy pitting attack in the acidic environment. For the alkaline conditions, the corrosion rates of carbon steel and Corten were higher than the stainless steel or Hastelloy C-276. Also, the corrosion rate of abraded specimens were four time those of unabraded specimens in the flue gas. It is probable that areas of wall-wetting and plugging in the duct injection process will exhibit high rates of corrosion for the carbon steel, Corten, and stainless steel materials. General corrosion and pitting corrosion will predominate. Additionally, abraded duct areas will corrode at a significantly higher rate than unabraded duct materials. 6 refs., 11 figs., 7 tabs.

• Research Organization: United Engineers and Constructors, Inc., Denver, CO (United States). Stearns-Roger Div.; Babcock and Wilcox Co., Alliance, OH (United States). Contract Research Div.
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-88PC88852
• OSTI ID: 6019612
• Report Number(s): DOE/PC/88852-T3-Rev.1; ON: DE92001791
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
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ABRASION
AEROSOL WASTES
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ASHES
CALCIUM COMPOUNDS
CALCIUM HYDROXIDES
CARBON STEELS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COMBUSTION PRODUCTS
CORROSION
CORROSIVE EFFECTS
DISPERSIONS
DUCTS
EROSION
FLUE GAS
FLY ASH
GASEOUS WASTES
HALOGEN COMPOUNDS
HASTELLOYS
HIGH ALLOY STEELS
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC ACIDS
IRON ALLOYS
IRON BASE ALLOYS
MIXTURES
NICKEL ALLOYS
NICKEL BASE ALLOYS
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PITTING CORROSION
RESIDUES
SLURRIES
SORBENT INJECTION PROCESSES
STAINLESS STEEL-317
STAINLESS STEELS
STEELS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SULFURIC ACID
SUSPENSIONS
TEMPERATURE EFFECTS
WASTES