Investigation on the Structure, Formation Mechanism, and Surface Morphology of CP-CH4 Binary Hydrate
文献类型：期刊论文
| 作者 | Lv, Qiu-Nan1,2,3; Zhang, Kai1,2,3; Li, Xiao-Sen1,2,3; Li, Gang1,2,3 |
| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2023-01-24 |
| 页码 | 10 |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/acs.energyfuels.2c03849 |
| 通讯作者 | Li, Xiao-Sen(lixs@ms.giec.ac.cn) ; Li, Gang(ligang@ms.giec.ac.cn) |
| 英文摘要 | Cyclopentane (CP) is often used as a hydrate former, which shows an excellent promotion effect in hydrate-based desalination. To elucidate the guest molecule distribution and microcosmic mechanism during hydrate formation, the in situ Raman spectroscopy of CP-methane binary hydrates is performed. The Raman spectra for the intramolecular vibration mode of host and guest molecules reveal that sII CP-methane hydrate formed with CP and CH4 encaged in large and small cages, respectively. But the small cages were not completely filling in. Because of the structure of CP with a five-membered ring, hydrogen-bonded water molecules arranged around CP forming a metastable structure, which accelerates the nucleation rate of hydrate. The peak O-H stretching vibration (ROH-H = I3170/I3400) in hydrate phase is an indication of hydrogen-bond ordering. At 3.5 MPa, the CH4 occupancy in the small cages was 0.9978 and the CP occupancy in the small cages was 0.1751. According to cage occupancies and the thermodynamic model based on van der Waals-Platteeuw, the calculated hydration number was 12.6. Cryo-scanning electron microscopy was applied to observe the surface morphology of hydrate. Energy-dispersive spectroscopy was used to distinguish hydrate from ice by identifying element C. |
| WOS关键词 | GAS UPTAKE MEASUREMENTS ; C-13 NMR ANALYSIS ; CLATHRATE HYDRATE ; CYCLOPENTANE ; WATER ; STORAGE ; DISSOCIATION ; EQUILIBRIUM ; TEMPERATURE ; MOLECULES |
| 资助项目 | National Natural Science Foundation of China[51976228] ; Key Program of National Science Foundation of China[51736009] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2020D044] ; Science and Technology Project of Guangzhou, China[202002030334] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDB-SSWJSC028] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-JSC033] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000924753500001 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; Key Program of National Science Foundation of China ; Special Project for Marine Economy Development of Guangdong Province ; Science and Technology Project of Guangzhou, China ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.giec.ac.cn/handle/344007/38485]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xiao-Sen; Li, Gang |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Qiu-Nan,Zhang, Kai,Li, Xiao-Sen,et al. Investigation on the Structure, Formation Mechanism, and Surface Morphology of CP-CH4 Binary Hydrate[J]. ENERGY & FUELS,2023:10. |
| APA | Lv, Qiu-Nan,Zhang, Kai,Li, Xiao-Sen,&Li, Gang.(2023).Investigation on the Structure, Formation Mechanism, and Surface Morphology of CP-CH4 Binary Hydrate.ENERGY & FUELS,10. |
| MLA | Lv, Qiu-Nan,et al."Investigation on the Structure, Formation Mechanism, and Surface Morphology of CP-CH4 Binary Hydrate".ENERGY & FUELS (2023):10. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。