抄録
A large-scale CCS demonstration project is currently being undertaken by the Japanese government in the Tomakomai area, Hokkaido prefecture, Japan. The project is scheduled to run for the period JFY 2012-2020 to demonstrate the viability of CCS system from CO_2 capture through to injection and storage. 100,000 tonnes per year or more of CO_2 derived from an industrial source will be injected from land and stored in two different saline aquifers under the seabed in the offshore area of the Tomakomai Port. At the capture facility, gaseous CO_2 of 99% purity is recovered by an activated amine process. A two-stage absorption system with a low pressure flash tower has been selected to reduce the amine reboiler duty in the capture system expected to be 1.0 GJ/ton-CO_2 or less for the typical CO_2-containing industrial feed gas. The construction works are currently progressing on schedule for planned CO_2 injection startup in 2016.
