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Effects of Salinity on Formation Behavior of Methane Hydrate in Montmorillonite

文献类型：期刊论文

作者Tao, Yuanqing1,2,3,4; Yan, Kefeng1,2,3,4; Li, Xiaosen1,2,3,4; Chen, Zhaoyang1,2,3,4; Yu, Yisong1,2,3,4; Xu, Chungang1,2,3,4
刊名ENERGIES
出版日期2020
卷号13期号:1页码:15
关键词natural gas hydrate montmorillonite salt ions bound water
DOI10.3390/en13010231
通讯作者Li, Xiaosen(lixs@ms.giec.ac.cn)
英文摘要In marine sediments, seawater influences the phase behavior of natural gas hydrate. As a porous medium, the water distribution and physical properties of montmorillonite are influenced by the salt ions in seawater. In this work, the bound-water content in, and crystal structure of, montmorillonite is measured to investigate the effect of salt ions on the water distribution in montmorillonite. It can be determined from the results that the bound-water content in montmorillonite decreases as the salt-ion concentration increases. Salt ions affect the intercalation of water molecules in montmorillonite, and they then inhibit the expansion effect of montmorillonite. Next, the phase behaviors of methane hydrate in montmorillonite with NaCl solution are investigated using high-pressure micro-differential scanning calorimetry. The phase behavior of hydrate in montmorillonite with NaCl solution is discussed. In montmorillonite with NaCl solution, the phase equilibrium temperatures and the conversion rate of methane hydrate both decrease with increasing NaCl concentration. The results show that methane hydrate in montmorillonite is influenced not only by the phase-equilibrium effect of salt ions, but also by the formation effect of the salt ions on the bound-water content in montmorillonite.
WOS关键词NATURAL-GAS HYDRATE ; SOUTH CHINA SEA ; MOLECULAR-DYNAMICS SIMULATION ; CLAY MINERAL DISTRIBUTION ; DISSOCIATION CONDITIONS ; EQUILIBRIUM CONDITIONS ; SWELLING BEHAVIOR ; SURFACE SEDIMENTS ; PORE-WATER ; STABILITY
资助项目Key Program of the National Natural Science Foundation of China[51736009] ; Natural Science Foundation of Guangdong Province of China[2019A1515012086] ; Natural Science Foundation of Guangdong Province of China[2017A030313301] ; Special project for marine economy development of Guangdong Province[GDME-2018D002] ; National Key R&D Program of China[2016YFC0304002] ; National Key R&D Program of China[2017YFC0307306] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences (CAS)[YZ201619] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-JSC033] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY SLH041] ; Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education[LOEC-201802]
WOS研究方向Energy & Fuels
语种英语
WOS记录号WOS:000520425800231
出版者MDPI
资助机构Key Program of the National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province of China ; Special project for marine economy development of Guangdong Province ; National Key R&D Program of China ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences (CAS) ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences, CAS ; Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education
源URL[http://ir.giec.ac.cn/handle/344007/26851]  
专题中国科学院广州能源研究所
通讯作者Li, Xiaosen
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Tao, Yuanqing,Yan, Kefeng,Li, Xiaosen,et al. Effects of Salinity on Formation Behavior of Methane Hydrate in Montmorillonite[J]. ENERGIES,2020,13(1):15.
APA Tao, Yuanqing,Yan, Kefeng,Li, Xiaosen,Chen, Zhaoyang,Yu, Yisong,&Xu, Chungang.(2020).Effects of Salinity on Formation Behavior of Methane Hydrate in Montmorillonite.ENERGIES,13(1),15.
MLA Tao, Yuanqing,et al."Effects of Salinity on Formation Behavior of Methane Hydrate in Montmorillonite".ENERGIES 13.1(2020):15.

入库方式： OAI收割

来源：广州能源研究所

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