Phase equilibrium and Raman spectroscopic studies of semi-clathrate hydrates for methane, nitrogen and tetra-butyl-ammonium fluoride
文献类型：期刊论文
| 作者 | Cai, Jing1,2; Xu, Chun-Gang1,2; Hu, Ya-Fei1,2,3; Ding, Ya-Long1,2,3; Li, Xiao-Sen1,2
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| 刊名 | fluid phase equilibria
 |
| 出版日期 | 2016-04-15 |
| 卷号 | 413页码:48-52 |
| 关键词 | Hydrate Phase equilibrium TBAF Semi-clathrate Dissociation enthalpy |
| 英文摘要 | the experimental study on phase equilibrium conditions for semi-clathrate hydrates formed in the systems of ch4/n-2 gas mixture and tetra-butyl-ammonium fluoride (tbaf) with different ratios (0.210, 0.293 and 0.500 mol%) to water was conducted in this paper. the experiments were carried out under the conditions of 281.15-291.15 k and 0.30-3.70 mpa. the structures of the hydrates were characterized using in-situ raman spectroscopy at 276.15 k and 2.50 mpa. at a certain given pressure, the equilibrium temperature of the semi-clathrate hydrates formed in the systems with 0.500 mol% tbaf is significantly higher than that of semi-clathrate hydrates formed the systems with 0.210 or 0.293 mol% tbaf, and even higher than that of structure ii hydrates formed in the systems with thf-sds. moreover, tbaf has more positive influence on enhancing dissociation enthalpies of the hydrates than thf. due to the quite weak signal of n n triple bond vibration or/and seldom n-2 molecules encaged into the cavities, only ch4 molecules could be determined clearly in the mixed hydrates. in addition, the crystal morphology of the semi-clathrate hydrates is affected by the ratio of tbaf to water. (c) 2015 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | thermodynamics ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | thermodynamics ; chemistry ; engineering |
| 关键词[WOS] | carbon-dioxide ; gas hydrate ; bromide ; separation ; hydrogen ; chloride ; crystallization ; tetrahydrofuran ; promoters ; mixtures |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000371554100008 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/11132]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Jing,Xu, Chun-Gang,Hu, Ya-Fei,et al. Phase equilibrium and Raman spectroscopic studies of semi-clathrate hydrates for methane, nitrogen and tetra-butyl-ammonium fluoride[J]. fluid phase equilibria,2016,413:48-52. |
| APA | Cai, Jing,Xu, Chun-Gang,Hu, Ya-Fei,Ding, Ya-Long,&Li, Xiao-Sen.(2016).Phase equilibrium and Raman spectroscopic studies of semi-clathrate hydrates for methane, nitrogen and tetra-butyl-ammonium fluoride.fluid phase equilibria,413,48-52. |
| MLA | Cai, Jing,et al."Phase equilibrium and Raman spectroscopic studies of semi-clathrate hydrates for methane, nitrogen and tetra-butyl-ammonium fluoride".fluid phase equilibria 413(2016):48-52. |
入库方式： OAI收割
来源：广州能源研究所
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