2020 年 55 巻 1 号 p. 3-9
Hydrogen is one of the future energy carriers that is distributed from a renewable energy surplus, and does not discharge CO2 and other air pollutions onsite. However, it must be handled carefully in order to be used safely and prevent negative economic and societal impacts when implemented as an energy source. For these reasons, the technologies of “carbon dioxide Recycling (CO2 Recycling)” are receiving much attention in Japan and Europe. The advancement of technologies regarding verylow temperature and high-pressure compression is expected to lead an important role in realizing a hydrogen-implemented society in the sense of three aspects: 1) Energy storage, 2) Carbon capture and recycling, and 3) Energy portability.