Effects of contaminants on the corrosion of MCFC components and hardware

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6252227

Remick, R J

Molten carbonate fuel cell (MCFC) power plants operating on fuels derived from the gasification of coal are likely to be exposed to ppM levels of various sulfur contaminants in the fuel. In a recently completed program conducted at the Institute of Gas Technology (IGT) addressing the performance loss associated with sulfur contaminants in the fuel, a number of corrosion related problems were uncovered on the oxidant side of the cell. These problems included the accelerated corrosion of cathode side hardware, the conversion of carbonate electrolyte to sulfate on the surface of the cathode current collector, and an increase in the dissolution rate of the nickel oxide cathode. The premature failure of an anode wet seal as the result of extensive corrosion may also have been related to the presence of contaminants in the fuel and oxidant stream although direct evidence of this is lacking.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• DOE Contract Number: AC21-83MC20212
• OSTI ID: 6252227
• Report Number(s): CONF-860304-5; ON: DE86007275
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
300502* -- Fuel Cells-- Performance & Testing
CHALCOGENIDES
CHEMICAL REACTIONS
CORROSION
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
FAILURES
FUEL CELL POWER PLANTS
FUEL CELLS
HIGH-TEMPERATURE FUEL CELLS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
MOLTEN CARBONATE FUEL CELLS
OXIDES
OXYGEN COMPOUNDS
POWER PLANTS
SEALS
SULFATES
SULFIDES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES