CO 2 storage in saline aquifers by dissolution and residual trapping under supercritical conditions: An experimental investigation
CO 2 storage in saline aquifers by dissolution and residual trapping under supercritical conditions: An experimental investigation
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DOI：
10.1016/j.colsurfa.2018.03.062
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发表时间：
2018-07
期刊：
影响因子：
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通讯作者：
M. Irfan;Teresa M. Bisson;E. Bobicki;F. J. Argüelles-Vivas;Zhenghe Xu;Qingxia Liu;T. Babadagli
中科院分区：
文献类型：
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作者：
M. Irfan;Teresa M. Bisson;E. Bobicki;F. J. Argüelles-Vivas;Zhenghe Xu;Qingxia Liu;T. Babadagli
用高压悬挂式滴池测定了在1500 Psi和40 °C下，超临界CO2液滴在不同溶液(电解质溶液和饱和盐水)中在石灰岩和砂岩基质上的体积随浸泡时间的变化。为了区分超临界二氧化碳的储存是通过残留物捕获到孔道中还是在整体溶液中溶解，还使用了无孔二氧化硅晶片进行了测量。石灰石、砂岩和硅片最初都是水湿的，随着时间的推移，硅片变得更湿了。与西南部相比，石灰岩和砂岩的二氧化碳湿润程度略高，这将影响二氧化碳的移动性。观察到CO2液滴在多孔衬底上的体积减小速度比在非多孔硅片上的要快得多，这是因为CO2残留地捕获(储存)到孔中。在实验的最初10 分钟内，发现残留物在二氧化碳储存动力学中占主导地位。
The volume of a supercritical CO2droplet on limestone and sandstone substrates in different solutions (electrolyte solutions and saturated saline water) at 1500 Psi and 40 °C was determined as a function of immersion time using a high pressure pendant/sessile drop cell. To differentiate the storage of the supercritical CO2by residual trapping into the pores from the dissolution in bulk solutions, the measurement was also conducted using a non-porous silica wafer. The limestone, sandstone and silicon wafer were all initially water-wet, with the silicon wafer becoming more CO2-wet over time. Limestone and sandstone were slightly more CO2-wet compared to the SW, which would affect the mobility of CO2. The volume reduction of the CO2droplet was observed to be much more rapid on porous substrates than on nonporous silica wafer due to the residual trapping (storage) of CO2into the pores. Residual trapping was found to dominate the kinetics of CO2storage, especially throughout the initial 10 min of the experiment.