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A system is provided for operating a solid oxide fuel cell generator on diesel fuel. The system includes a hydrodesulfurizer which reduces the sulfur content of commercial and military grade diesel fuel to an acceptable level. Hydrogen which has been previously separated from the process stream is m

A system is provided for operating a solid oxide fuel cell generator on diesel fuel. The system includes a hydrodesulfurizer which reduces the sulfur content of commercial and military grade diesel fuel to an acceptable level. Hydrogen which has been previously separated from the process stream is mixed with diesel fuel at low pressure. The diesel/hydrogen mixture is then pressurized and introduced into the hydrodesulfurizer. The hydrodesulfurizer comprises a metal oxide such as ZnO which reacts with hydrogen sulfide in the presence of a metal catalyst to form a metal sulfide and water. After desulfurization, the diesel fuel is reformed and delivered to a hydrogen separator which removes most of the hydrogen from the reformed fuel prior to introduction into a solid oxide fuel cell generator. The separated hydrogen is then selectively delivered to the diesel/hydrogen mixer or to a hydrogen storage unit. The hydrogen storage unit preferably comprises a metal hydride which stores hydrogen in solid form at low pressure. Hydrogen may be discharged from the metal hydride to the diesel/hydrogen mixture at low pressure upon demand, particularly during start-up and shut-down of the system.

대표청구항 ▼

A system for operating a solid oxide fuel cell generator using diesel fuel comprising: mixing means for admixing diesel fuel and hydrogen to produce a diesel fuel and hydrogen mixture; hydrodesulfurizing means for removing sulfur from the diesel fuel and hydrogen mixture to produce a desulfurized di

A system for operating a solid oxide fuel cell generator using diesel fuel comprising: mixing means for admixing diesel fuel and hydrogen to produce a diesel fuel and hydrogen mixture; hydrodesulfurizing means for removing sulfur from the diesel fuel and hydrogen mixture to produce a desulfurized diesel fuel mixture; reforming means for reforming organic constituents of the desulfurized diesel fuel mixture into a reformed fuel comprising lower molecular weight hydrocarbons, hydrogen and carbon monoxide; hydrogen separator means for separating hydrogen from the reformed fuel; hydrogen supply means for supplying at least a portion of the hydrogen separated from the reformed fuel to the mixing means; hydrogen storing means for storing at least a portion of the hydrogen separated from the reformed fuel for subsequent delivery to the mixing means; and fuel supply means for supplying the reformed fuel to a solid oxide fuel cell generator.