NOVELTY - The fuel cell system comprises a fuel electrode (54), a carbon-monoxide shift converter (4), a water-vapor condenser (5), a hydrogen separation reservoir (7,8) and a carbon-dioxide recovering unit (10). The carbon-monoxide containing exhaust gas from the fuel electrode is reacted with water vapor in the converter. The water vapor is condensed in the condenser, and the hydrogen separation reservoir separates and stores hydrogen (16) from the exhaust gas. Thus, fuel and oxidizing agent are supplied to the fuel cell system and electric power is generated.    USE - Fuel cell system for electric power generation used for domestic purpose.    ADVANTAGE - Fuel cell system generates power in high efficiency and prevents global warming by effectively recovering carbon-dioxide from exhaust gas.    DETAILED DESCRIPTION - The fuel cell system comprises a fuel electrode, a carbon-monoxide shift converter, a water-vapor condenser, a hydrogen separation reservoir and a carbon-dioxide recovering unit. The fuel electrode reforms fuel containing carbon atom and supplies the reformed gas in molecule and anion is permeated through an electrolyte. The carbon-monoxide containing exhaust gas discharged from the fuel electrode is made to react with water vapor and converts the carbon mono-oxide into hydrogen and carbon-dioxide in the carbon-monoxide shift converter. The water vapor is condensed in the condenser, and the hydrogen separation reservoir selectively separates and stores hydrogen from the exhaust gas. The remaining exhaust gas from the hydrogen separation reservoir is passed to the carbon-dioxide recovering unit. Thus, fuel and oxidizing agent are supplied to the fuel cell system and electric power is generated. An INDEPENDENT CLAIM is included for carbon-dioxide recovery method.    DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of fuel-cell electric power generation system. (Drawing includes non-English language text)    Carbon-monoxide shift converter (4)    Water-vapor condenser (5)    Hydrogen separation reservoir (7,8)    Carbon-dioxide recovering unit (10)    Hydrogen (16)    Fuel electrode (54)