DESULFURIZATION OF LIQUID HYDROCARBON FUEL FOR FUEL CELLS.
Final technical rept.,
PRATT AND WHITNEY AIRCRAFT EAST HARTFORD CONN
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An experimental evaluation of catalytic guard chamber materials and systems studies were made to select a desulfurization technique and guard chamber catalyst-absorbent. Certain supported nickel catalysts were found effective in the removal of organic sulfur compounds from feed mixtures of fuel and water. The addition of hydrogen to the feed was found to increase the length of time during which sulfur is efficiently removed. Since the useful life of the catalyst-absorbent in the desulfurization cartridge was found to be dependent on such unknown factors as the type and concentration of the sulfur present in the fuel, principles for signaling the end of the useful life of the desulfurization cartridge were investigated. A demonstration test with JP-4 containing 470 ppm of sulfur was run using an existing hydrogen generator modified for operation with a desulfurization cartridge utilizing recycled dilute wet hydrogen. This 200-hour test without loss in performance demonstrates the potential of this method for utilizing JP-4 or CITE in indirect hydrocarbon-air fuel-cell powerplants. Author
- Physical Chemistry
- Electric Power Production and Distribution