Study of the Effects of Soot, Particulate, and Other Contaminants on Molten Carbonate Fuel Cells Fueled by Coal Gas: Final Report, August 1984-August 1987.

摘要

This is an initial study to look at a broad spectrum of possible coal-gas, soot, particulate, and contaminant effects in the Molten Carbonate Fuel Cell (MCFC) using both out-of-cell thermogravimetric analysis (isothermal TGA) and fuel cell testing. Initial studies with the TGA apparatus concerned soot formation at 650/degree/C and atmospheric pressure in a simulated coal-gas, after which soot-deposition with the same gas compositions was studied in bench-scale cells under both ambient and high pressure conditions. Good agreement was found between these tests. The effects of particles depositing inside the MCFC was also tested in bench-scale cells. Both modeling efforts and experimental data have shown that only a minor fraction of the submicron particles still present in fuel after passing a typical coal-gas (e.g. >1 mu m) are strongly affected by gravitational settling and appear to precipitate and be removed from the gas in the various ducts and manifolds prior to entering the fuel cell. 31 refs., 28 figs., 19 tabs. (ERA citation 13:033892)