アンモニアのプラズマ分解による水素生成特性

抄録

The spread of hydrogen energy system has been desired to solve CO2 issues, however, there are problems that huge energy loss has got to face in storage and transport hydrogen. Hydrogen carrier such as ammonia is available for reducing the energy loss. In the hydrogen carrier system use ammonia, a hydrogen production device from ammonia is necessary. This research is focusing on ammonia decomposition using atmospheric pressure plasma. A plasma membrane reactor (PMR) has been developed for hydrogen production from ammonia. In this study, effect of gas residence time on hydrogen yield was investigated to design the efficient plasma membrane reactor. The hydrogen yield increased with an increase in the power consumption and gas residence time. hydrogen yield achieved 99.1 % at the power consumption of 400 W and the plasma firing time of 1800 sec. The same experiments were performed by a plasma reactor without the hydrogen separation membrane (PR), and the hydrogen yields were compared with the results of the PMR. The hydrogen yields of the PMR were higher than that of the PR; therefore, it found that hydrogen separation membrane play a role of acceleration of ammonia decomposition.