ESTIMATION OF POTENTIAL OCEANIC REGIONS AND POSSIBLE CO₂ AMOUNTS FOR STORAGE USING SELF-SEALING OF CO₂ HYDRATE AROUND JAPAN

Abstract

 Japan aims to reduce its greenhouse gas emissions by 80% by 2050 as a countermeasure against global warming. As part of its policy, by 2030, the Japanese government plans to put into action carbon dioxide (CO₂) capture and storage (CCS) initiatives. On the other hand, site surveys for deep saline aquifers (DSA) in Japan are underway. This paper shows the potential for CO₂ storage using self-sealing of CO₂ hydrate as a breakthrough to increase site options and the possible amounts of CO₂ to be stored around Japan. In particular, the potential oceanic regions and the possible CO₂ amounts are estimated.