Abstract
Fuel cell (FC) offers the possibility of expanding the electricity utilization market. One of the key technologies that will make the widespread use of fuel cells possible is a hydrogen supply system. The use of chemical reactant as a hydrogen career medium has the possibility of a safe hydrogen supply system. The possibility of a FC vehicle system, which utilized chemical reactants and capable to realize carbon dioxide zero-emission, was discussed experimentally in this study. The system uses a portable thermally regenerative fuel reformer of carbon dioxide fixation type. The reactivity of calcium oxide to carbon dioxide was used for the carbon dioxide fixation and also for heat source of fuel reforming. The reaction realizes high-purity hydrogen production under mild operation conditions, and is regenerative thermally. To estimate the efficiency of the fuel reforming system using the reaction system, the reactivity of hydrogen production was examined experimentally. The proposed reforming system was expected to be applicable as a hydrogen career system in carbon dioxide zero-emission FC vehicles. The contribution of the zero-emission hydrogen career system on the global environment was evaluated based on the experimental results.
