Conceptual Design of CO2 Transportation System for CCS

Reducing carbon dioxide (CO2) emission is strongly requested in relation to the global warming issue. The development of innovative technology including Carbon dioxide Capture and Storage (CCS) is required to achieve the CO2 reduction targets. Because of the geological structure of the domestic complex in Japan, reservoirs near sources of emissions have not enough storage capacity of CO2. Therefore, transportation to suitable sites will be necessary for large amount of CO2 storage. Three methods of transporting CO2 from coal-fired power plant to offshor storage sites near japan1's coastline were studied. One with transporting liquefied CO2 by ship, another with transporting CO2 hydrate by ship, and the third by a pipeline. Transportation distance is approximately 700–1,000 km for the former two cases, and 120 km for pipeline. The case study on a demonstration scale and a commercial use was executed. The CO2 transport volume set for each case is 240,000 ton-CO2/year and 1,540,000 ton- CO2/year respectively. This research was executed as a contract study from New Energy and Industrial Technology Development Organization (NEDO).