CO_2の船舶輸送(<特集>CO_2排出から貯留までの総合システム)

概要

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Effort has been made to reduce mission of Green House Gas by introducing low CO_2 emitting power such as renewable energy, nuclear energy, etc. but there expected to be a limit only by the introduction of the energies. CCS (Carbon dioxide Capture and Storage) is expected to be another effective mean to reduce the emission. Geological structure in Japan is complicated and capacity of a single site is generally small. Sea bottom CCS and overseas option need to be investigated in addition to the CCS on land. Efficient CO_2 transportation system is necessary and vitally important. In the present study, total CO_2 transportation system with ships is planned. Based on the plan, preliminary design of land station, transportation ships, offshore station are made, and CCS cost is evaluated. The estimated cost is about 15,000〜16,000 yen/t CO_2. The system considered in the study have some room for improvement, and further improvements are proposed.
2011-10-20