フェライトによる集光太陽熱の水素エネルギー変換

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We propose the development of solar hybrid fuel production using ferrites in sunbelts. The aim of the proposed development is to produce solar hybrid fuel that is commercially competitive with gasoline in Japan. The solar hybrid fuel can be produced from fossil fuels (e.g., coal and natural gas) and solar energy through a solar thermochemical process using ferrites. The difference between the combustion heat of the solar hybrid methanol (SH-MeOH) and the fossil fuels (coal and natural gas) is 14%, which means that we can introduce 14% solar energy into fossil fuels. Two-step water splitting with a ZnFe_2O_4-Zn/Fe_3O_4 system can also be utilized as a solar hydrogen production process for electric generation. For the H_2 generation step, when a mixture of metal Zn/Fe_3O_4 powder was heated in a steam at 600℃, stoichiometric H_2 generation was confirmed by gas chromatography. The metal Zn/Fe_3O_4 mixed powder was formed from the solid product (ZnFe_2O_4) obtained after H_2 generation reaction at the O_2 release step (above 1,300℃). This paper describes the concept and mechanism of solar hybrid fuel production using ferrites, and reports on examples of high-temperature solar chemistry.
社団法人日本磁気学会の論文
2002-11-01