Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Molecular dynamics simulation of methane hydrate dissociation by thermal stimulation in conjunction with chemical injection method | |
| Yan Ke-Feng; Li Xiao-Sen; Chen Zhao-Yang; Li Gang; Li Zhi-Bao | |
| 2007-11-01 | |
| Source Publication | ACTA PHYSICA SINICA
 |
| Volume | 56Issue:11Pages:6727-6735 |
| Abstract | The characteristics of methane hydrate dissociation in the presence of thermal stimulation, chemical injection, and thermal stimulation in conjunction with chemical injection method were investigated by molecular dynamics simulation. The effect of the injection of liquid water (WTR) and 30 wt% ethylene glycol (EG) solution at 277 K and 340 K on methane hydrate dissociation was studied. The results showed the hydrogen bonds between WTR molecules and the water molecules on the hydrate surface were formed,which destroyed the original hydrogen bond balance of the hydrate. Therefore, the clathrate structure of hydrate collapsed, and the hydrate dissociated. The hydrogen bonds was formed obviously between hydroxyl groups of EG molecules and the water molecules on the hydrate surface; this caused the original stable clathrate structure of the hydrate to be destroyed and collapse, and, furthermore, promoted the dissociation of the methane hydrate and the release of methane gas. Compared with the effects of injecting WTR and 30 wt% EG solution at 277 K and 340 K on the dissociation of methane hydrate, the effectivences was found to be: EG (340 K) > WTR (340 K) > EG (277K) > WTR (277K). The thermal stimulation in conjunction with chemical injection method can more effectively promote the dissociation of hydrate. |
| Subtype | Article |
| Keyword | Methane Hydrate Molecular Dynamics Simulation Thermal Stimulation Method Chemical Injection Method |
| WOS Headings | Science & Technology ; Physical Sciences |
| WOS Subject Extended | Physics |
| WOS Keyword | ETHYLENE-GLYCOL ; GAS HYDRATE ; 2-AMINOETHANOL |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000251093800094 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10277 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convis, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| Recommended Citation GB/T 7714 | Yan Ke-Feng,Li Xiao-Sen,Chen Zhao-Yang,et al. Molecular dynamics simulation of methane hydrate dissociation by thermal stimulation in conjunction with chemical injection method[J]. ACTA PHYSICA SINICA,2007,56(11):6727-6735. |
| APA | Yan Ke-Feng,Li Xiao-Sen,Chen Zhao-Yang,Li Gang,&Li Zhi-Bao.(2007).Molecular dynamics simulation of methane hydrate dissociation by thermal stimulation in conjunction with chemical injection method.ACTA PHYSICA SINICA,56(11),6727-6735. |
| MLA | Yan Ke-Feng,et al."Molecular dynamics simulation of methane hydrate dissociation by thermal stimulation in conjunction with chemical injection method".ACTA PHYSICA SINICA 56.11(2007):6727-6735. |
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