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Estimation of ultra-stability of methane hydrate at 1 atm by thermal conductivity measurement
Li, Dongliang1,2,3,4; Liang, Deqing1,2,3; Fan, Shuanshi3; Peng, Hao1,2
2010-05-01
发表期刊JOURNAL OF NATURAL GAS CHEMISTRY
ISSN1003-9953
卷号19期号:3页码:229-233
产权排序[Li, Dongliang; Liang, Deqing; Peng, Hao] CAS, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China; [Li, Dongliang; Liang, Deqing; Peng, Hao] CAS, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China; [Li, Dongliang; Liang, Deqing; Fan, Shuanshi] MOE, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510640, Guangdong, Peoples R China; [Li, Dongliang] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
通讯作者liangdq@ms.giec.ac.cn
摘要Thermal conductivity of methane hydrate was measured in hydrate dissociation self-preservation zone by means of the transient plane source (TPS) technique developed by Gustafsson. The sample was formed from 99.9% (volume ratio) methane gas with 280 ppm sodium dodecyl sulfate (SDS) solution under 6.6 MPa and 273.15 K. The methane hydrate sample was taken out of the cell and moved into a low temperature chamber when the conversion ratio of water was more than 90%. In order to measure the thermal conductivity, the sample was compacted into two columnar parts by compact tool at 268.15 K. The measurements are carried out in the temperature ranging from 263.15 K to 271.15 K at atmospheric pressure. Additionally, the relationship between thermal conductivity and time is also investigated at 263.15 K and 268.15 K, respectively. In 24 h, thermal conductivity increases only 5.45% at 268.15 K, but thermal conductivity increases 196.29% at 263.15 K. Methane hydrates exhibit only minimal decomposition at 1 atm and the temperature ranging from 263.15 K to 271.15K. At 1 atm and 268.15 K, the total gas that evolved after 24 h was amounted to less than 0.71% of the originally stored gas, and this ultra-stability was maintained if the test was lasted for more than two hundreds hours before terminating.
文章类型Article
其他摘要Thermal conductivity of methane hydrate was measured in hydrate dissociation self-preservation zone by means of the transient plane source (TPS) technique developed by Gustafsson. The sample was formed from 99.9% (volume ratio) methane gas with 280 ppm sodium dodecyl sulfate (SDS) solution under 6.6 MPa and 273.15 K. The methane hydrate sample was taken out of the cell and moved into a low temperature chamber when the conversion ratio of water was more than 90%. In order to measure the thermal conductivity, the sample was compacted into two columnar parts by compact tool at 268.15 K. The measurements are carried out in the temperature ranging from 263.15 K to 271.15 K at atmospheric pressure. Additionally, the relationship between thermal conductivity and time is also investigated at 263.15 K and 268.15 K, respectively. In 24 h, thermal conductivity increases only 5.45% at 268.15 K, but thermal conductivity increases 196.29% at 263.15 K. Methane hydrates exhibit only minimal decomposition at 1 atm and the temperature ranging from 263.15 K to 271.15K. At 1 atm and 268.15 K, the total gas that evolved after 24 h was amounted to less than 0.71% of the originally stored gas, and this ultra-stability was maintained if the test was lasted for more than two hundreds hours before terminating.
关键词Methane Hydrate Self-preservation Dissociation Velocity Thermal Conductivity
学科领域Chemistry ; Energy & Fuels ; Engineering
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/S1003-9953(09)60070-0
研究领域[WOS]Chemistry ; Energy & Fuels ; Engineering
URL查看原文
关键词[WOS]GAS ; PRESERVATION ; DISSOCIATION ; ICE
收录类别SCI
语种英语
项目资助者National Basic Research Program of China [2009CB219504]; National Natural Science Foundation of China [50706056]; Guangdong Province Science and Technology [2009B030600005]
WOS类目Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000278975700005
引用统计
被引频次:5[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/344007/8502
专题中国科学院广州能源研究所
天然气水合物基础研究实验室
作者单位1.CAS, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.CAS, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
3.MOE, Key Lab Enhanced Heat Transfer & Energy Conservat, Guangzhou 510640, Guangdong, Peoples R China
4.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
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Li, Dongliang,Liang, Deqing,Fan, Shuanshi,et al. Estimation of ultra-stability of methane hydrate at 1 atm by thermal conductivity measurement[J]. JOURNAL OF NATURAL GAS CHEMISTRY,2010,19(3):229-233.
APA Li, Dongliang,Liang, Deqing,Fan, Shuanshi,&Peng, Hao.(2010).Estimation of ultra-stability of methane hydrate at 1 atm by thermal conductivity measurement.JOURNAL OF NATURAL GAS CHEMISTRY,19(3),229-233.
MLA Li, Dongliang,et al."Estimation of ultra-stability of methane hydrate at 1 atm by thermal conductivity measurement".JOURNAL OF NATURAL GAS CHEMISTRY 19.3(2010):229-233.
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