New insights into decomposition characteristics of nanoscale methane hydrate below the ice point
文献类型：期刊论文
| 作者 | Wan, Lihua ; Liang, Deqing; Guan, Jinan
|
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:72页码:41397-41403 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c8ra08955h |
| 通讯作者 | Liang, Deqing(liangdq@ms.giec.ac.cn) |
| 英文摘要 | In this paper, molecular dynamics simulation was used to study the decomposition process of nanoscale methane hydrate at 1 atm and 227 K. The results predict that methane hydrate decomposes into supercooled water (SCW) and methane gas and the resulting SCW turns into very high density amorphous ice (VHDA). The density of the VHDA is as high as 1.2-1.4 g cm(-3). The X-ray diffraction phase analysis showed that VHDA has a broad peak at 2 of around 30 degrees. The VHDA encapsulates the methane hydrate crystal so that the crystal can survive for a long time. The dissolved gas from the hydrate melt cannot escape out of the VHDA in a short time. The simulation results reveal new molecular insights into the decomposition behaviour of nanoscale methane hydrate below the ice point. |
| WOS关键词 | NATURAL-GAS ; ANOMALOUS PRESERVATION ; MOLECULAR-DYNAMICS ; SUPERCOOLED WATER ; CRYSTAL-STRUCTURE ; CH4 HYDRATE ; DISSOCIATION ; CARBON ; EVOLUTION ; LIQUID |
| 资助项目 | National Natural Science Foundation of China[51576197] ; National Natural Science Foundation of China[51106163] ; National Natural Science Foundation of China[51676197] ; National Key Research and Development Plan of China[2016YFC0304002] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000453914300032 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Plan of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/24356]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Liang, Deqing |
| 作者单位 | Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Lihua,Liang, Deqing,Guan, Jinan. New insights into decomposition characteristics of nanoscale methane hydrate below the ice point[J]. RSC ADVANCES,2018,8(72):41397-41403. |
| APA | Wan, Lihua,Liang, Deqing,&Guan, Jinan.(2018).New insights into decomposition characteristics of nanoscale methane hydrate below the ice point.RSC ADVANCES,8(72),41397-41403. |
| MLA | Wan, Lihua,et al."New insights into decomposition characteristics of nanoscale methane hydrate below the ice point".RSC ADVANCES 8.72(2018):41397-41403. |
入库方式： OAI收割
来源：广州能源研究所
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