estimationofultrastabilityofmethanehydrateat1atmbythermalconductivitymeasurement

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	estimationofultrastabilityofmethanehydrateat1atmbythermalconductivitymeasurement
	Li Dongliang1 ; Liang Deqing1 ; Fan Shuanshi 2; Peng Hao 1
	2010
Source Publication	journalofnaturalgaschemistry
ISSN	1003-9953
Volume	19 Issue:3 Pages:229
Abstract	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.
Language	英语
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/22160
Collection	中国科学院广州能源研究所
Affiliation	1.中国科学院广州能源研究所 2.华南理工大学
First Author Affilication	GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation GB/T 7714	Li Dongliang,Liang Deqing,Fan Shuanshi,et al. estimationofultrastabilityofmethanehydrateat1atmbythermalconductivitymeasurement[J]. journalofnaturalgaschemistry,2010,19(3):229.
APA	Li Dongliang,Liang Deqing,Fan Shuanshi,&Peng Hao.(2010).estimationofultrastabilityofmethanehydrateat1atmbythermalconductivitymeasurement.journalofnaturalgaschemistry,19(3),229.
MLA	Li Dongliang,et al."estimationofultrastabilityofmethanehydrateat1atmbythermalconductivitymeasurement".journalofnaturalgaschemistry 19.3(2010):229.

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