Estimation of ultra-stability of methane hydrate at 1 atm by thermal conductivity measurement

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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, Shuanshi 3; Peng, Hao 1,2
刊名	journal of natural gas chemistry
	2010-05-01
卷号	19 期号:3 页码:229-233
关键词	methane hydrate self-preservation dissociation velocity thermal conductivity
ISSN号	1003-9953
通讯作者	liangdq@ms.giec.ac.cn
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
中文摘要	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.
英文摘要	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.
学科主题	chemistry ; energy & fuels ; engineering
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, applied ; chemistry, physical ; energy & fuels ; engineering, chemical
研究领域[WOS]	chemistry ; energy & fuels ; engineering
关键词[WOS]	gas ; preservation ; dissociation ; ice
收录类别	SCI
资助信息	national basic research program of china [2009cb219504]; national natural science foundation of china [50706056]; guangdong province science and technology [2009b030600005]
原文出处	https://dx.doi.org/10.1016/s1003-9953(09)60070-0
语种	英语
WOS记录号	WOS:000278975700005
公开日期	2014-12-24
内容类型	期刊论文
源URL	[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
推荐引用方式 GB/T 7714	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.