反応性セラミックスを用いる集光太陽熱からのソーラー水素生産(<特集>CO_2フリー水素製造技術の最新動向)

概要

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The rotary-type solar reactor for solar H_2 production by two-step water splitting has been developed using the reactive ceramics of CeO_2-ZrO_2. The heat-engine theory is adopted for an efficient solar energy conversion. The heat generated on the reactive ceramics is transferred through the layer and the heat is absorbed during passing through the layer by the endothermic process of the O_2-releasing reaction. The temperature difference between the (Vreleasing reaction the H_2O decomposition process should be below 300℃ due to minimize the heat loss by the heat capacity of the reactive ceramics. 50kW solar reactor is planned to demonstrate the solar operation using the solar concentration system at CSIRO in Australia. The reactive ceramics of CeO_2-ZrO_2 and CeO_2-T_2O_5 have been studied for development of a high reactivity of the two-step water splitting reaction at 1500℃.
一般社団法人日本エネルギー学会の論文
2009-05-20