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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
发表期刊ENERGY
卷号79页码:111-116
摘要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.
文章类型Article
关键词Raman Co2 Replacement Ngh (Natural Gas Hydrate) Ch4 Production
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.energy.2014.10.068
研究领域[WOS]Thermodynamics ; Energy & Fuels
关键词[WOS]PRODUCTION BEHAVIOR ; LIQUID CO2 ; MIXED-GAS ; UNCONSOLIDATED SEDIMENT ; SPECTROSCOPIC ANALYSIS ; MOLECULAR SIMULATION ; POROUS SEDIMENT ; DEPRESSURIZATION ; ENERGY ; ENCLATHRATION
收录类别SCI
语种英语
WOS类目Thermodynamics ; Energy & Fuels
WOS记录号WOS:000348959000010
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10796
专题中国科学院广州能源研究所
作者单位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
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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.
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