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DOI | 10.1029/2018WR023150 |
Convective-Reactive CO2 Dissolution in Aquifers With Mass Transfer With Immobile Water | |
Babaei, Masoud1; Islam, Akand2 | |
2018-11-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2018 |
卷号 | 54期号:11页码:9585-9604 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | The objective of this paper is to study the impact of immobile water, its fraction, and its mass transfer with the flowing region on efficiency of CO2 dissolution in aquifers with an immobile water zone. A continuum scale code is developed with underlying assumptions of spatially homogeneous and temporally invariable partitioning fraction of the porous media, first-order mass transfer between the mobile and immobile zones, and simplified reaction of CO2 aqueous solution with calcium carbonate rock. Using ranges of values for Damkohler number (Da), fraction of the total pore volume, and mass transfer coefficient rate (), 96 simulations are conducted. It is shown that due to a lower intensity of reaction in the mobile region, intermediate values of serve as a threshold below which the mass transfer coefficient is not affecting the overall CO2 storage and above which overall CO2 storage increases as a function of mass transfer coefficient. Additionally, we found that (i) when is high and geochemistry is intensive (high Da), the overall CO2 storage decreases with increase in fraction of mobile water. This is because CO2 storage through consumption of rock in immobile water with higher geochemistry is reduced. (ii) When is high but Da is low, the system is effectively a single porosity medium with no chemistry-influenced discrimination between mobile and immobile zones, and therefore, overall CO2 storage increases with fraction of mobile water. (iii) When is low, the magnitude of Da does not influence the overall CO2 storage. |
英文关键词 | CO2 geologic storage geochemistry dual porosity density-driven convection mobile-immobile model |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000453369400055 |
WOS关键词 | DIFFUSIVE NATURAL-CONVECTION ; END PORE VOLUME ; CARBON-DIOXIDE ; CHEMICAL-REACTION ; POROUS-MEDIUM ; ROCK MATRIX ; FLOW ; SIMULATION ; TRANSPORT ; DISPERSION |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/19938 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Manchester, Sch Chem Engn & Analyt Sci, Manchester, Lancs, England; 2.Fiat Chrysler Automobiles, Rochester Hills, MI USA |
推荐引用方式 GB/T 7714 | Babaei, Masoud,Islam, Akand. Convective-Reactive CO2 Dissolution in Aquifers With Mass Transfer With Immobile Water[J]. WATER RESOURCES RESEARCH,2018,54(11):9585-9604. |
APA | Babaei, Masoud,&Islam, Akand.(2018).Convective-Reactive CO2 Dissolution in Aquifers With Mass Transfer With Immobile Water.WATER RESOURCES RESEARCH,54(11),9585-9604. |
MLA | Babaei, Masoud,et al."Convective-Reactive CO2 Dissolution in Aquifers With Mass Transfer With Immobile Water".WATER RESOURCES RESEARCH 54.11(2018):9585-9604. |
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