中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Experimental Study on the Formation Kinetics of Methane Hydrates in the Presence of Tetrabutylammonium Bromide

文献类型:期刊论文

作者Shi, Lingli1,2,3,4; Shen, Xiaodong1,2,3,4,5; Ding, Jiaxiang1,2,3,4,5; Liang, Deqing1,2,3,4
刊名ENERGY & FUELS
出版日期2017-08-01
卷号31期号:8页码:8540-8547
DOI10.1021/acs.energyfuels.7b01213
文献子类Article
英文摘要Tetrabutylammonium bromide (TBAB) could form semiclathrate hydrate under milder conditions compared to gas hydrate and, thus, effectively improve the thermodynamic stability of gas hydrate. To evaluate the effect of TBAB on the formation kinetics of methane hydrates, the kinetic properties of TBAB + CH4 semiclathrate hydrate were investigated with an isobaric method at 7.0 MPa with salt mass fraction and subcooling degree varying from 0.05 to 0.60 and from 4 to 10 K, respectively. The result showed that, with a higher salt concentration and subcooling degree, the induction time presented its stochastic property, while the normalized gas consumption and gas consumption rate were relatively constant and higher, respectively. In addition, Raman spectroscopy, powder X-ray diffraction (PXRD) device, and cryo-scanning electron microscopy were employed to identify the molecular behavior and observe the morphology of the hydrate. The spectra of Raman and PXRD revealed that the CH4 molecules were encaged in dodecahedron cages and its addition induced the orthorhombic pattern, which had the larger potential gas capacity, rather than the tetragonal pattern. The microstructure pictures presented that the addition of TBAB could make the surface of the hydrate more ordered and tight, as a contrary to that of inhibitors, which led to a more chaotic and porous surface. These results could provide important information for hydrate-based industrial applications, such as gas separation and storage.
WOS关键词N-BUTYLAMMONIUM BROMIDE ; SEMI-CLATHRATE HYDRATE ; SIMULATED FLUE-GAS ; TBAB PLUS WATER ; PHASE-EQUILIBRIUM ; SEMICLATHRATE HYDRATE ; CARBON-DIOXIDE ; DISSOCIATION CONDITIONS ; AQUEOUS-SOLUTIONS ; CRYSTAL-GROWTH
语种英语
WOS记录号WOS:000408178100086
资助机构National Natural Science Foundation of China(51606198 ; Natural Science Foundation of Guangdong Province(2016A030310126) ; Key Laboratory of Gas Hydrate Chinese Academy of Sciences(Y607jb1001) ; 51376182)
源URL[http://ir.giec.ac.cn/handle/344007/16292]  
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
3.Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China
4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Shi, Lingli,Shen, Xiaodong,Ding, Jiaxiang,et al. Experimental Study on the Formation Kinetics of Methane Hydrates in the Presence of Tetrabutylammonium Bromide[J]. ENERGY & FUELS,2017,31(8):8540-8547.
APA Shi, Lingli,Shen, Xiaodong,Ding, Jiaxiang,&Liang, Deqing.(2017).Experimental Study on the Formation Kinetics of Methane Hydrates in the Presence of Tetrabutylammonium Bromide.ENERGY & FUELS,31(8),8540-8547.
MLA Shi, Lingli,et al."Experimental Study on the Formation Kinetics of Methane Hydrates in the Presence of Tetrabutylammonium Bromide".ENERGY & FUELS 31.8(2017):8540-8547.

入库方式: OAI收割

来源:广州能源研究所

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