Development of internally-circulating fluidized bed reactor for conversion of High-temperature solar heat into hydrogen

设计了一种开窗内循环流化床反应器，用于太阳能热化学两步水裂解制氢，并通过安装在反应器顶部的透明石英窗，通过太阳模拟的Xe光辐射，以氧化锆支撑的铁基颗粒反应陶瓷作为高活性氧化还原材料进行了测试。通过将热还原步骤的氮气流转换为水分解步骤的蒸汽/氮气混合物流，考察了流化床反应器连续两步水分解的可行性。证实了在单流化床反应器中，连续两步水裂解制氢。

A windowed internally circulating fluidized bed reactor was developed for solar thermochemical two-step water splitting to produce hydrogen from water, and tested using reactive ceramic of zirconia-supported iron-based particles as highly-active redox material by solar-simulated Xe light radiation through a transparent quartz window mounted on top of the reactor. The feasibility of successive two-step water splitting using the fluidized bed reactor was examined by switching from Nitrogen gas flow in the thermal reduction step to a steam/Nitrogen gas mixture in the water decomposition step. It was confirmed that hydrogen production takes place in the single fluidized bed reactor by successive two-step water splitting.