Modeling CO2–Water–Mineral Wettability and Mineralization for Carbon Geosequestration,Accounts of Chemical Research

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Modeling CO2–Water–Mineral Wettability and Mineralization for Carbon Geosequestration
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2017-06-29 00:00:00 , DOI: 10.1021/acs.accounts.7b00049
Yunfeng Liang _{1,

2} , Shinya Tsuji ₂ , Jihui Jia ₃ , Takeshi Tsuji _{3,

4} , Toshifumi Matsuoka _{2,

5}

Affiliation

Carbon dioxide (CO₂) capture and storage (CCS) is an important climate change mitigation option along with improved energy efficiency, renewable energy, and nuclear energy. CO₂ geosequestration, that is, to store CO₂ under the subsurface of Earth, is feasible because the world’s sedimentary basins have high capacity and are often located in the same region of the world as emission sources. How CO₂ interacts with the connate water and minerals is the focus of this Account. There are four trapping mechanisms that keep CO₂ in the pores of subsurface rocks: (1) structural trapping, (2) residual trapping, (3) dissolution trapping, and (4) mineral trapping. The first two are dominated by capillary action, where wettability controls CO₂ and water two-phase flow in porous media. We review state-of-the-art studies on CO₂/water/mineral wettability, which was found to depend on pressure and temperature conditions, salt concentration in aqueous solutions, mineral surface chemistry, and geometry. We then review some recent advances in mineral trapping.

中文翻译：

模拟CO ₂ –水–矿物的润湿性和矿化作用，用于碳固碳

二氧化碳（CO ₂）捕集与封存（CCS）不仅是提高能源效率，可再生能源和核能的重要措施，也是缓解气候变化的重要选择。CO ₂地质封存，即将CO ₂储存在地球地下之下是可行的，因为世界上的沉积盆地容量高，并且通常与排放源位于世界同一地区。CO ₂如何与原生水和矿物质相互作用是本报告的重点。有四种捕集机制可以保持CO ₂在地下岩石的孔隙中：（1）结构性捕集，（2）残留性捕集，（3）溶解性捕集，和（4）矿物捕集。前两个以毛细作用为主，其中润湿性控制多孔介质中的CO ₂和水两相流。我们回顾了有关CO ₂ /水/矿物润湿性的最新研究，该研究取决于压力和温度条件，水溶液中的盐浓度，矿物表面化学性质和几何形状。然后，我们回顾一下矿物捕集的一些最新进展。

更新日期：2017-06-29

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