(US6156084-A)   NOVELTY - System for desulfurizing undiluted hydrocarbon fuel stream to convert it into a hydrogen-rich gas for use in a cell stack assembly in a fuel cell plant comprises: (a) nickel desulfurization station for converting sulfur in fuel stream to nickel sulfide; (b) means for introducing the undiluted fuel stream into the station; and (c) means for maintaining the station at 250-525 degrees F during operation.    USE - For desulfurizing an undiluted hydrocarbon fuel stream to convert it into a hydrogen-rich gas for use in a cell stack assembly in a fuel cell power plant.    ADVANTAGE - The system does not require the addition of steam or a hydrogen source to the fuel stream prior to desulfurizing. It operates at low temperatures and can be used to desulfurize either a liquid or gaseous fuel stream. The system can be used as a sole source of electricity for a vehicle or a stationary power plant, or could be used in a hybrid system which include batteries for electrical power or generators in addition to fuel cell electrical power source.    (US6159256-A)   NOVELTY - System for desulfurizing undiluted hydrocarbon fuel stream to convert it into a hydrogen-rich gas for use in a cell stack assembly in a fuel cell plant comprises: (a) nickel desulfurization station for converting sulfur in fuel stream to nickel sulfide; (b) means for introducing the undiluted fuel stream into the station; and (c) means for maintaining the station at 250-525 degrees F during operation.    USE - For desulfurizing an undiluted hydrocarbon fuel stream to convert it into a hydrogen-rich gas for use in a cell stack assembly in a fuel cell power plant.    ADVANTAGE - The system does not require the addition of steam or a hydrogen source to the fuel stream prior to desulfurizing. It operates at low temperatures and can be used to desulfurize either a liquid or gaseous fuel stream. The system can be used as a sole source of electricity for a vehicle or a stationary power plant, or could be used in a hybrid system which include batteries for electrical power or generators in addition to fuel cell electrical power source.    (EP1119407-A1)   NOVELTY - System for desulfurizing undiluted hydrocarbon fuel stream to convert it into a hydrogen-rich gas for use in a cell stack assembly in a fuel cell plant comprises: (a) nickel desulfurization station for converting sulfur in fuel stream to nickel sulfide; (b) means for introducing the undiluted fuel stream into the station; and (c) means for maintaining the station at 250-525 degrees F during operation.    USE - For desulfurizing an undiluted hydrocarbon fuel stream to convert it into a hydrogen-rich gas for use in a cell stack assembly in a fuel cell power plant.    ADVANTAGE - The system does not require the addition of steam or a hydrogen source to the fuel stream prior to desulfurizing. It operates at low temperatures and can be used to desulfurize either a liquid or gaseous fuel stream. The system can be used as a sole source of electricity for a vehicle or a stationary power plant, or could be used in a hybrid system which include batteries for electrical power or generators in addition to fuel cell electrical power source.