NOVELTY - Method for removing sulfur from a desulfurization station in a fuel cell power plant comprises: (1) introducing gas stream containing carbon monoxide (CO) into desulfurizing station; and (2) reacting CO with sulfur deposited on sulfur scrubber bed in the station to form gaseous carbonyl sulfide (COS) in effluent gas stream exiting the station to strip deposited sulfur from the scrubber bed.    USE - The system is used to remove sulfur suitable for use in fuel cell power plant (claimed).    ADVANTAGE - The system allows the power plant to be operated continuously for longer periods of time and spent sulfur scrubbing beds need not be removed and discarded or desulfurized in some adjunct system. The sulfur removal bed is much more compact and has longer operating life.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) method for regenerating a desulfurization station used to remove sulfur compounds from hydrocarbon fuel stream converting it into low sulfur content fuel comprises the method of sulfur removal above;    (2) system for using an anode exhaust stream from phosphoric acid fuel cell power plant for regenerating sulfur scrubber station in the power plant, comprising exhaust line(s) connecting the anode of power plant cell stacks to sulfur scrubber in the plant to direct anode exhaust to the scrubber, valve(s) in the line for selectively opening and closing the line in which the anode exhaust can be selectively passed through the scrubber station to allow CO in the exhaust to react with sulfur in the scrubber station to convert the sulfur to gaseous COS and line from the scrubber station for removing the gaseous COS from scrubber station;    (3) system for using a portion of reformer exhaust stream in polymer electrolyte membrane fuel cell power plant for regenerating sulfur scrubber station in the plant, comprising the components of the system for using the anode exhaust stream in which the exhaust line(s) connects the reformer of the plant to the sulfur scrubber and in which the reformer exhaust can be selectively passed to the scrubber station; and    (4) system for using a portion of CO reduction station exhaust stream in polymer electrolyte membrane fuel cell power plant for regenerating sulfur scrubber station in the plant, comprising the components of the system for using the anode exhaust stream in which the exhaust line(s) connects the CO reduction station of the plant to the sulfur scrubber and in which the CO reduction station can be selectively passed to the scrubber station.    DESCRIPTION OF DRAWING(S) - The figure is a schematic view of fuel cell power plant which includes sulfur scrubbing bed.