Abstract: A fuel recycling device comprises: a mixing tank, the mixing tank comprising: a fuel supplying port configured to supply into the mixing tank a concentrated fuel; a cathode inlet configured to supply into the mixing tank a cathode effluent of an external fuel cell stack; an anode inlet configured to supply into the mixing tank an anode effluent of the fuel cell stack; a stack supplying port configured to supply a mixed fuel comprising the concentrated fuel, the cathode effluent, and the anode effluent to the fuel cell stack; and a gas outlet configured to discharge gas therein; and a condenser coupled with the gas outlet, configured to condense the gas discharged from the mixing tank into a liquid.

Abstract: A reformer comprises an oxygen supplying unit that supplies oxygen having a high purity, a combustion reacting unit that burns oxygen and a combustible fuel, a reforming reacting unit that converts a hydrogen-containing reforming fuel into a reforming gas comprising molecular hydrogen using heat generated from combustion reacting unit, and a carbon monoxide removing unit that removes carbon monoxide contained reforming gas. Accordingly, the present invention is capable of more rapidly generating hydrogen having a high purity from an initial startup of a fuel cell in a reformer.