NOVELTY - Reduction of carbon monoxide from a hydrocarbon reformate includes moving an initial amount of reformate through a first bed comprising bifunctional material for adsorbing carbon monoxide such that its adsorption capacity is reduced. Additional reformate is restricted from moving through the bed where oxidizing gas is passed through. Carbon monoxide is converted to carbon dioxide.    USE - For removing carbon monoxide from a hydrocarbon reformate used in fuel cell applications.    ADVANTAGE - The method reduces or eliminates both parasitic consumption of hydrogen and the reverse shift effect. It optimizes the speed, robustness and thoroughness of the regeneration of CO removal capacity and optimizes the oxidation of carbon monoxide. It minimizes the amount of time a bed is off line as a result of the regeneration phase, displays enhanced tolerance to carbon monoxide concentration swings, can be operated simply and economically, and can operate at the temperature and pressures similar to that of a fuel cell.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (A) a method of providing a DC power from a hydrocarbon reformate containing carbon monoxide comprising processing a hydrocarbon fuel in a fuel processor to form the reformate containing carbon monoxide, reducing carbon monoxide (CO) from hydrocarbon reformate to produce a CO-free reformate which is then passed into a fuel cell to produce DC power;    (B) an adsorption-catalytic processor system for removing carbon monoxide from a hydrocarbon reformate, comprising:    (i) beds including bifunctional materials with active components that adsorbs carbon monoxide from the reformate;    (ii) inlet valve assembly for connecting the beds, rotating them and sequentially channeling the reformate and an oxidizing sweep gas between the beds;    (iii) heater for heating the sweep gas; and    (iv) outlet valve for connecting the beds, rotating them and sequentially channeling a CO-free reformate from the beds; and    (C) carbon monoxide removal system comprising:    (1) fuel processor for processing hydrocarbon fuel containing CO;    (2) adsorption and catalytic oxidation processor; and    (3) heater for heating sweep gas before its entrance to the processor.