NOVELTY - A fuel processing apparatus comprises a reformer catalyst section, a shift converter catalyst section, a selective oxidation catalyst section, a burner section for receiving and combusting a combustion fuel to heat the reformer catalyst section, a combusted exhaust gas passage, and a combustion catalyst section formed in the combusted exhaust gas passage.    USE - For a fuel cell power generation system.    ADVANTAGE - The inventive fuel processing apparatus shortens startup time and reduces start up energy consumption.    DETAILED DESCRIPTION - A fuel processing apparatus comprises a reformer catalyst section filled with a reformer catalyst for reforming a hydrocarbon-based fuel into a reformate containing hydrogen as a main ingredient; a shift converter catalyst section filled with a shift converter catalyst for shift-converting carbon monoxide contained in the reformate; a selective oxidation catalyst section filled with a selective oxidation catalyst for selectively oxidizing carbon monoxide contained in the reformate after the shift converting; a burner section for receiving and combusting a combustion fuel, to heat the reformer catalyst section, and discharging a combusted exhaust gas; a combusted exhaust gas passage (28) through which flows the combusted exhaust gas or the combustion fuel that has not been combusted in the burner section; and a combustion catalyst section formed in the combusted exhaust gas passage and filled with a combustion catalyst for combusting the combustion fuel. The combustion catalyst section is located in a vicinity of the shift converter catalyst section or the selective oxidation catalyst section.    INDEPENDENT CLAIMS are also included for:    (1) a fuel cell power generation system, comprising the fuel processing apparatus above; and a fuel cell stack for generating electricity using the reformate having passed through the selective oxidation catalyst section; and    (2) a fuel processing method, comprising a reformer step of reforming a hydrocarbon-based fuel into a reformate containing hydrogen as a main ingredient; a shift converter step of shift-converting carbon monoxide contained in the reformate; a selective oxidation step of selectively oxidizing carbon monoxide contained in the reformate after the shift converter step; a first combustion step of supplying a combustion fuel to a burner section, and combusting the combustion fuel using combustion air in the burner section to provide heat required for the reformer step; and a second combustion step of combusting, using combustion air, the combustion fuel having passed through but not combusted in the burner section to provide heat required for the shift converter step or the selective oxidation step.    DESCRIPTION OF DRAWING(S) - The figure is a block diagram, showing a configuration of a fuel cell power generation system.    First off-gas transport line (17)    Stack air supply section (19)    Combusted exhaust gas passage (28)    Combusted exhaust gas transport line (29)    Combustion catalyst temperature detecting section (31, 32, 33)