Exploring Porous Flow Behavior of the Decomposed Gas from CH4 Hydrate in Clayey Sediments by Molecular Dynamics Simulation
文献类型：期刊论文
| 作者 | Yan, Ke-Feng1,2,3,4; Mao, Ming-Hang1,2,3,4; Kou, Xuan1,2,3,4; Li, Xiao-Sen1,2,3,4; Chen, Zhao-Yang1,2,3,4; Wang, Yi1,2,3,4; Feng, Jing-Chun5 |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2024-07-30 |
| 卷号 | 40期号:32页码:16959-16971 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/acs.langmuir.4c01792 |
| 通讯作者 | Li, Xiao-Sen(lixs@ms.giec.ac.cn) |
| 英文摘要 | A fundamental understanding of the fluid flow mechanism during CH4 hydrate dissociation in nanoscale clayey sediments from the molecular perspective can provide invaluable information for macroscale natural gas hydrate (NGH) exploration. In this work, the fluid flow behaviors of the decomposed gas from CH4 hydrate within clayey nanopores under different temperature conditions are revealed by molecular dynamics (MD) simulation. The simulation results indicate that the key influencing factors of gas-water flow in nanoscale clayey sediments include the diffusion and the random migration of gas molecules. The influencing mechanisms of fluid flow in nanopores are closely related with the temperature conditions. Under a low temperature condition, the gas diffusion process is impeded by the secondary hydrate formation, leading to the decline in gas transport velocity within nanopores. However, it is still noteworthy that the gas-water fluid flow channels are not completely blocked by the occurrence of secondary hydrate. Under a high temperature condition, the significant phenomenon of water migration during gas flow is observed, which can be ascribed to the gas-liquid entrainment effect in nanopores of the clayey sediment. These results may provide valuable implications and fundamental evidence for improving gas production efficiency in future field tests of NGH exploitation in marine sediments. |
| WOS关键词 | METHANE HYDRATE ; PERMEABILITY ; DEPRESSURIZATION ; DISSOCIATION ; NUCLEATION ; NANOPORES ; GROWTH ; SIZE ; MECHANISM ; TRANSPORT |
| 资助项目 | Guangdong Basic and Applied Basic Research Foundation[2022A1515010835] ; National Natural Science Foundation of China[52306286] ; Guangdong Natural Resources Foundation[GDNRC[2022]45] ; Guangdong Natural Resources Foundation[GDME-2022D043] ; National Key Research and Development Program of China[2021YFC2800902] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2019B030302004] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2020B0301030003] |
| WOS研究方向 | Chemistry ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001280959200001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | Guangdong Basic and Applied Basic Research Foundation ; National Natural Science Foundation of China ; Guangdong Natural Resources Foundation ; National Key Research and Development Program of China ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42538]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xiao-Sen |
| 作者单位 | 1.Univ Sci & Technol China, Sch Energy Sci & Technol, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.Guangdong Univ Technol, Inst Environm & Ecol Engn, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Ke-Feng,Mao, Ming-Hang,Kou, Xuan,et al. Exploring Porous Flow Behavior of the Decomposed Gas from CH4 Hydrate in Clayey Sediments by Molecular Dynamics Simulation[J]. LANGMUIR,2024,40(32):16959-16971. |
| APA | Yan, Ke-Feng.,Mao, Ming-Hang.,Kou, Xuan.,Li, Xiao-Sen.,Chen, Zhao-Yang.,...&Feng, Jing-Chun.(2024).Exploring Porous Flow Behavior of the Decomposed Gas from CH4 Hydrate in Clayey Sediments by Molecular Dynamics Simulation.LANGMUIR,40(32),16959-16971. |
| MLA | Yan, Ke-Feng,et al."Exploring Porous Flow Behavior of the Decomposed Gas from CH4 Hydrate in Clayey Sediments by Molecular Dynamics Simulation".LANGMUIR 40.32(2024):16959-16971. |
入库方式： OAI收割
来源：广州能源研究所
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