石灰層を利用した炭酸ガスの地中固定

概要

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There are many types of geological formations used for CO2 sequestration. Coal seam is one of them. The characteristics of the coal seam used for CO2 sequestration are the methane recovery when CO2 is sequestrated. CO2 is injected into coal seam not only for the CO2 sequestration but also for CH4 recovery (ECBMR).This paper reports the sequestration mechanism of CO2 in the coal seam and the world R&D status in this field.The adsorption is a main sequestration mechanism of CO2 in the coal seam. In the field scale sequestration, pressure of CO2 is super-critical. The adsorption volume of CO2 in coal in that condition is not yet clarified. This adsorption volume is very important for the prediction of sequestrable CO2 volume.The present activities on this subject in the United States, Canada, Australia, Netherlands and Japan were reported. For the further studies, the international cooperative R&Ds are necessary. Items for the further R&Ds are summarized.
社団法人資源・素材学会の論文
2001-12-25