Development of prototype fluidized bed reactor for solar hydrogen production

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With regards to solar thermochemical two-step water splitting cycle using reactive ceramic as a highly-active redox material for producing hydrogen from water, prototype fluidized bed reactor was developed and tested for hydrogen production from water using high-temperature solar heat. This reactor allows that oxygen and hydrogen are simultaneously produced and separated inside the reactor. Thus, the reactor can realize a single-process of successive two-step reactions in a single fluidized bed reactor. An irradiation test by 5kW sun-simulator showed that oxygen and hydrogen were simultaneously produced in the single-process. I did an application for a domestic patent for method and device using this reaction system for solar thermochemical water splitting to produce hydrogen.