Solid oxide fuel cell system and method of operating the same using peak shaving gas

A method of operating a fuel cell system using a peak shaving fuel, the method comprising:

• providing a fuel stream comprising the peak shaving fuel to an oxidation catalyst to catalyze a reaction between any O2 included in the fuel stream and at least one of H2 and CO included in the fuel stream;
• providing the fuel stream to a hydrogenation catalyst to catalyze a saturation reaction between any unsaturated hydrocarbons included in the fuel stream and the H2 included in the fuel stream;
• detecting a temperature of fuel stream provided from the oxidation catalyst to the hydrogenation catalyst;
• and
• increasing a flow rate of the fuel stream if the detected temperature corresponds to an increase in oxidation by the oxidation catalyst;
• providing the fuel stream from the hydrogenation catalyst to the reforming catalyst to generate a reformed fuel;
• and
• providing the reformed fuel to a fuel cell stack.