Hydrate-based SF6 6 capture and sequestration: Insights from thermodynamics, kinetics, in-situ - situ Raman spectroscopy, and molecular dynamic simulation
文献类型：期刊论文
| 作者 | Sun, Jiyue1,2,3 ; Zhang, Ye2; Chou, I-Ming3; Jiang, Lei3; Li, Xiaosen1; Linga, Praveen2
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
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| 出版日期 | 2024-11-01 |
| 卷号 | 499页码:13 |
| 关键词 | SF 6 hydrate Thermodynamic Kinetic Raman spectra Molecular dynamic simulation |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2024.156530 |
| 英文摘要 | Sulfur hexafluoride (SF6) is currently the most potent greenhouse gas to date due to its remarkably long atmospheric lifespan and chemical inertness. Hydrate-based technology provides an innovative solution to capture SF6 under lower pressure conditions and enables the long-term storage of SF6 gas. Herein, we conduct a fundamental study to explore the potential of capturing and sequestering SF6 gas within clathrate hydrates. The three-phase coexistence conditions were measured at the pressure ranging from 0.33 to 1.06 MPa and at ambient temperatures. A thermodynamic model was employed to predict the equilibrium conditions, using an iterative method to calculate the phase equilibrium pressure. Molecular dynamic simulation (MD) was used to observe the growth of SF6 hydrate at the nanosecond scale. In-situ Raman spectroscopy was utilized for analyzing real-time vibrational bands of S-F and O-H in SF6 hydrate, offering crucial insights into hydrate stability and growth. Additionally, microscopic kinetic experiments were also carried out to clarify the impacts of different pressures (0.8, 1.0, and 1.2 MPa) on the nucleation time, gas consumption, and growth rate during hydrate formation in both pure water and seawater. An efficient approach is proposed for the separation of solid-liquid mixtures, fabricating hydrate pellets. The findings of this study establish a foundation for the development of hydrate-based SF6 capture and storage technology. |
| WOS关键词 | SULFUR-HEXAFLUORIDE ; METHANE ; KINETICS ; VISCOSITY ; MIXTURES ; GROWTH ; WATER ; CO2 |
| 资助项目 | National University of Singapore (NUS) ; China Scholarship Council[202104910267] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001337766100001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National University of Singapore (NUS) ; China Scholarship Council |
| 源URL | [http://ir.idsse.ac.cn/handle/183446/11755]  |
| 专题 | 深海科学研究部_深海极端环境模拟研究实验室 |
| 通讯作者 | Zhang, Ye; Jiang, Lei; Li, Xiaosen; Linga, Praveen |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, CAS Key Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Jiyue,Zhang, Ye,Chou, I-Ming,et al. Hydrate-based SF6 6 capture and sequestration: Insights from thermodynamics, kinetics, in-situ - situ Raman spectroscopy, and molecular dynamic simulation[J]. CHEMICAL ENGINEERING JOURNAL,2024,499:13. |
| APA | Sun, Jiyue,Zhang, Ye,Chou, I-Ming,Jiang, Lei,Li, Xiaosen,&Linga, Praveen.(2024).Hydrate-based SF6 6 capture and sequestration: Insights from thermodynamics, kinetics, in-situ - situ Raman spectroscopy, and molecular dynamic simulation.CHEMICAL ENGINEERING JOURNAL,499,13. |
| MLA | Sun, Jiyue,et al."Hydrate-based SF6 6 capture and sequestration: Insights from thermodynamics, kinetics, in-situ - situ Raman spectroscopy, and molecular dynamic simulation".CHEMICAL ENGINEERING JOURNAL 499(2024):13. |
入库方式： OAI收割
来源：深海科学与工程研究所
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