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Thermal conductivities of methane-methylcyclohexane and tetrabutylammonium bromide clathrate hydrate
Li, Dongliang; Liang, Deqing; Peng, Hao; Wan, Lihua
2016-02-01
Source PublicationJOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume123Issue:2Pages:1391-1397
AbstractThermal conductivities of structure H (sH) methane-methylcyclohexane hydrate and type A tetrabutylammonium bromide (TBAB) clathrate hydrate were measured using a single-sided transient plane source technique. The thermal conductivity of sH hydrate exhibited a positive trend with temperature and the average thermal conductivity was found to be 0.44 W m(-1) K-1 at a compaction pressure of 12 MPa. The thermal conductivity of sH hydrate was lower than those of structure I and structure II hydrates at the same temperature and was found to depend not only on guest-host interactions but also on the rigidity of the framework. Unlike sH hydrates, the thermal conductivity of type A TBAB hydrates exhibited a negative trend with temperature. One possible reason for this strange phenomenon could be that the TBAB hydrate has a semi-clathrate structure, which retains the crystal heat transmission characteristics. The structures of the hydrates studied were different from those of normal gas hydrates. In addition, the thermal conductivity values for TBAB hydrates were also affected by interactions between the cations and anions.
SubtypeArticle
KeywordThermal Conductivity Hydrate Structure Methylcyclohexane Tetrabutylammonium Bromide
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10973-015-5065-3
WOS Subject ExtendedThermodynamics ; Chemistry
WOS KeywordMOLECULAR-DYNAMICS SIMULATIONS ; HYDROGEN STORAGE ; HEAT-CAPACITY ; TBAB ; DISSOCIATION ; POLYMORPHS ; SEPARATION ; PRESSURE ; MIXTURE ; GUEST
Indexed BySCI
Language英语
WOS SubjectThermodynamics ; Chemistry, Analytical ; Chemistry, Physical
WOS IDWOS:000368199500050
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10947
Collection中国科学院广州能源研究所
AffiliationChinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Li, Dongliang,Liang, Deqing,Peng, Hao,et al. Thermal conductivities of methane-methylcyclohexane and tetrabutylammonium bromide clathrate hydrate[J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,2016,123(2):1391-1397.
APA Li, Dongliang,Liang, Deqing,Peng, Hao,&Wan, Lihua.(2016).Thermal conductivities of methane-methylcyclohexane and tetrabutylammonium bromide clathrate hydrate.JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY,123(2),1391-1397.
MLA Li, Dongliang,et al."Thermal conductivities of methane-methylcyclohexane and tetrabutylammonium bromide clathrate hydrate".JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY 123.2(2016):1391-1397.
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