Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Raman analysis on methane production from natural gas hydrate by carbon dioxide-methane replacement | |
| Xu, Chun-Gang1,2; Cai, Jing1,2; Lin, Fu-hua1,2; Chen, Zhao-Yang1,2; Li, Xiao-Sen1,2 | |
| 2015 | |
| Source Publication | ENERGY
 |
| Volume | 79Pages:111-116 |
| Abstract | Using CO2-CH4 (carbon dioxide methane) replacement to produce CH4 from NGH (natural gas hydrate) is not only a new CH4 production technology but also a direct way to disposal CO2 by CO2 hydrates. Although there are many studies focusing on the mechanism of CH4 replacement in hydrates by CO2, the mechanism of the replacement is still not clear. In this work, the replacement process and hydrate structure change are tracked and investigated by Raman and NMR (nuclear magnetic resonance) spectra. By comprehensively analyzing the Raman and NMR spectra, we infer the mechanism of the replacement and the hydrate structures. Conclusions are drawn as, on one hand, CH4 molecules are fully replaced with the gas solid interface, but partly replaced in deeply inner hydrates by CO2 molecules; on the other hand, the CO2 hydrate and CH4 hydrate coexist in a type of structure I (sl) and there is no structure transformation during the replacement. The research results are important to further confirm the mechanism of the replacement and reveal factors restraining efficiency of the CH4 production. (C) 2014 Elsevier Ltd. All rights reserved. |
| Subtype | Article |
| Keyword | Raman Co2 Replacement Ngh (Natural Gas Hydrate) Ch4 Production |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1016/j.energy.2014.10.068 |
| WOS Subject Extended | Thermodynamics ; Energy & Fuels |
| WOS Keyword | PRODUCTION BEHAVIOR ; LIQUID CO2 ; MIXED-GAS ; UNCONSOLIDATED SEDIMENT ; SPECTROSCOPIC ANALYSIS ; MOLECULAR SIMULATION ; POROUS SEDIMENT ; DEPRESSURIZATION ; ENERGY ; ENCLATHRATION |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Thermodynamics ; Energy & Fuels |
| WOS ID | WOS:000348959000010 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10796 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Beijing 100864, Peoples R China 2.Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Xu, Chun-Gang,Cai, Jing,Lin, Fu-hua,et al. Raman analysis on methane production from natural gas hydrate by carbon dioxide-methane replacement[J]. ENERGY,2015,79:111-116. |
| APA | Xu, Chun-Gang,Cai, Jing,Lin, Fu-hua,Chen, Zhao-Yang,&Li, Xiao-Sen.(2015).Raman analysis on methane production from natural gas hydrate by carbon dioxide-methane replacement.ENERGY,79,111-116. |
| MLA | Xu, Chun-Gang,et al."Raman analysis on methane production from natural gas hydrate by carbon dioxide-methane replacement".ENERGY 79(2015):111-116. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment