Corrosion of heat exchanger materials in simulated fluidized bed combustion environments
Metallic materials selected for the construction of in-bed heat exchangers in fluidized bed combustion (FBC) systems must withstand the corrosive conditions prevalent in these systems. The corrosion behavior of carbon steel, chromium-molybdenum ferritic steels, Type 310 stainless steel, and Incoloy 800 has been evaluated after exposure to complex gas mixtures that simulate conditions anticipated in FBC systems. Experiments have been conducted on internally cooled tube specimens with metal temperatures of 977 and 866 K and gas temperatures in the range 999 to 1123 K. Results are presented on the gas-metal interactions and the scale morphologies as a function of gas chemistry, alloy type, and system temperature. Experimental results are also presented on the corrosion behavior of candidate materials coated with deposits such as CaSO/sub 4/, CaO, and CaO/CaSO/sub 4/ mixtures. The information has been used to examine the effects of the type of deposit and deposit sequence on the scale development and grain boundary penetration of oxygen or sulfur in the substrate material.
- Research Organization:
- Argonne National Laboratory, Argonne, Illinois
- OSTI ID:
- 5946161
- Journal Information:
- Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 38:7; ISSN CORRA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Corrosion assessment in FBC (fluidized-bed combustion) systems
Laboratory corrosion studies of heat exchanger materials in simulated fluidized-bed combustion environments
Related Subjects
360105* -- Metals & Alloys-- Corrosion & Erosion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
640300 -- Atomic
Molecular & Chemical Physics
74 ATOMIC AND MOLECULAR PHYSICS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BENCH-SCALE EXPERIMENTS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CALCIUM SULFATES
CARBON STEELS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CHROMIUM-NICKEL STEELS
COMBUSTION
CORROSION
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
CRYSTAL STRUCTURE
DATA
DEPOSITS
EXHAUST GASES
EXPERIMENTAL DATA
FLUIDIZED-BED COMBUSTION
FLUIDS
GASEOUS WASTES
GASES
GRAIN BOUNDARIES
HEAT EXCHANGERS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INCOLOY 800
INCOLOY ALLOYS
INFORMATION
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MICROSTRUCTURE
MORPHOLOGICAL CHANGES
NICKEL ALLOYS
NUMERICAL DATA
OXIDATION
OXIDES
OXYGEN COMPOUNDS
SCALING
SIMULATION
STAINLESS STEEL-310
STAINLESS STEELS
STEELS
SULFATES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE
WASTES