| Effects of Impurities on CO2 Sequestration in Saline Aquifers: Perspective of Interfacial Tension and Wettability | |
Chen C ; Zhuang C; Shen WJ(沈伟军); Li WZ
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| Source Publication | Industrial & Engineering Chemistry Research
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| 2017-12 | |
| Volume | 57Issue:1Pages:1-9 |
| ISSN | 0888-5885 |
| Abstract | In recent years, the reduction of CO2 emissions has become a joint effort throughout the world, and carbon capture and sequestration (CCS) is an effective approach to solving the problem of CO2 emissions. In the present study, the effects of adding CH4, Ar, and H2S to CO2 on the interfacial tension (IFT) and wettability (contact angle, CA) of the CO2/water/silica system have been investigated using molecular dynamics simulation methods at 20 MPa and 318 K when the molar concentration of impurity gas was fixed at 20%. For the conditions studied, (1) CH4 has no significant effect; (2) Ar leads to a higher IFT, a larger CA on silica surfaces with a high hydroxyl density, and a smaller CA on silica surfaces with a low hydroxyl density; and (3) H2S causes a decrease of the IFT and an increase of the CA. Capillary pressure and gas storage capacity were predicted using IFT and CA data, and the variation of IFT and CA were explained based on density profiles normal to the gas/water and gas/silica interfaces. These findings might be helpful for better understanding the effects of impurities on CCS. |
| DOI | 10.1021/acs.iecr.7b03873 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000419999800036 |
| WOS Keyword | CARBON-DIOXIDE CAPTURE ; MOLECULAR-DYNAMICS SIMULATION ; GEOLOGICAL STORAGE ; GAS-RESERVOIRS ; PHASE-EQUILIBRIA ; SYSTEMS ; WATER ; TEMPERATURE ; INJECTION ; PRESSURE |
| WOS Research Area | Engineering, Chemical |
| WOS Subject | Engineering |
| Funding Organization | National Natural Science Foundation of China [51676027, 51206016] ; Natural Science Foundation of Liaoning Province [201602147] ; Fundamental Research Funds for the Central Universities [DUT17LAB03] |
| Classification | 二类 |
| Ranking | 3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/72153 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Chen C |
| Affiliation | 1.Dalian University of Technology, Dalian 116024, P. R. China 2.Institute of Mechanics, Chinese Academy of Sciences, Beijing100190, P. R. China |
| Recommended Citation GB/T 7714 | Chen C,Zhuang C,Shen WJ,et al. Effects of Impurities on CO2 Sequestration in Saline Aquifers: Perspective of Interfacial Tension and Wettability[J]. Industrial & Engineering Chemistry Research,2017,57(1):1-9. |
| APA | Chen C,Zhuang C,Shen WJ,&Li WZ.(2017).Effects of Impurities on CO2 Sequestration in Saline Aquifers: Perspective of Interfacial Tension and Wettability.Industrial & Engineering Chemistry Research,57(1),1-9. |
| MLA | Chen C,et al."Effects of Impurities on CO2 Sequestration in Saline Aquifers: Perspective of Interfacial Tension and Wettability".Industrial & Engineering Chemistry Research 57.1(2017):1-9. |
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| irJ2018072.pdf（4550KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
| IrJ2018366.pdf（4550KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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