SOLID OXIDE FUEL CELL WHICH OPERATES WITH AN EXCESS OF FUEL

摘要

The invention relates to a method for operating a fuel cell, comprising the following steps: a hydrocarbon-containing fuel is fed into the inside of the fuel cell with a large excess; the hydrocarbon-containing fuel is converted into a synthesis gas internally and directly in or on the anode by means of an endothermic reaction; and the synthesis gas is only partially converted into electricity in the fuel cell by means of an exothermic electrochemical reaction. The aim is to achieve an almost isothermic stack-operating temperature. It is also possible to limit the oxygen requirements of the electrochemical reactions to an almost stoichiometric dosage. In addition to electricity, more valuable gases (hydrogen) are produced.