玄武岩質岩石へのＣＯ２地中貯留の適用―反応速度モデルにもとづく溶解・沈澱シミュレーションによる鉱物トラッピングの推定―

DOI Web Site 被引用文献3件 参考文献28件

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  • Dissolution of basaltic rocks and its application to underground sequestration of CO2-Estimate of mineral trapping by dissolution-precipitation simulation-
  • ゲンブガンシツ ガンセキ エ ノ CO2 チチュウ チョリュウ ノ テキヨウ ハンノウ ソクド モデル ニ モトズク ヨウカイ チンデン シミュレーション ニ ヨル コウブツ トラッピング ノ スイテイ
  • Dissolution of basaltic rocks and its application to underground sequestration of CO2—Estimate of mineral trapping by dissolution-precipitation simulation—

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  Dissolution kinetics model calculations were performed for the interaction between three types of basaltic rocks in Japan (Fuji and Hachijyojima fresh basalts and Kitamatsuura altered basalt) and groundwater injected CO2. Dissolution rates of the basalts experimentally determined by the authors (Shikazono et al., 2008) and database of dissolution rate constants of silicate minerals in the basaltic rocks in PATHARC (Talman et al., 2000) were used for the calculations. The results of calculations indicate that most of dissolved carbon in groundwater injected CO2 can be fixed as carbonates in long-term period. The efficiency of carbon fixation is in an order, Hachijyojima>Fuji>Kitamatsuura. But the efficiency is not so different for three basaltic rocks in the fixation of carbon in underground sequestration of CO2. It is inferred that mineral trapping of CO2 by carbonates in basalt aquifer is useful for the long-term fixation of carbon in underground sequestration of CO2.<br>

収録刊行物

  • 岩石鉱物科学

    岩石鉱物科学 38 (5), 149-160, 2009

    一般社団法人　日本鉱物科学会

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