Logistic fuel processing for high temperature fuel cells

PETR 106

Sandors Abens, sabens@fce.com and George Steinfeld, gsteinfeld@fce.com. FuelCell Energy, 3 Great Pasture Road, Danbury, CT 06813
FuelCell Energy, Inc. is commercializing megawatt class direct carbonate (DFC®) fuel cell power plants for dispersed power generation with natural gas fuel. For marine and remote location applications where natural gas is unavailable, FCE is adapting its internal reforming carbonate fuel cell technology for use with logistic and other liquid hydrocarbon fuels. The fuel conditioning process is based on sulfur removal followed by adiabatic conversion of liquid hydrocarbons to a fuel suitable for high temperature fuel cells.

Several fuel cell demonstrator plants ranging in output from 5 to 500 kW have been constructed and evaluated at FCE with logistic fuels including DF-2 and NATO F-76 diesel as well as JP-5 and JP-8 aviation fuels. Test results show stable composition of the converted fuel with complete conversion of higher hydrocarbons. Successful operation of carbonate fuel cell stacks with the product gas has validated this processing approach for high temperature fuel cells.