Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Thermodynamic Properties of Double Semiclathrate Hydrates Formed with Tetrabutylphosphonium Chloride + CH4 | |
Shi, Lingli1,2,3,4; Ding, Jiaxiang1,2,3,4,5; Liang, Deqing1,2,3,4
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| 2017-12-01 | |
| Source Publication | JOURNAL OF CHEMICAL AND ENGINEERING DATA
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| ISSN | 0021-9568 |
| Volume | 62Issue:12Pages:4377-4382 |
| Corresponding Author | Liang, Deqing(liangdq@ms.giec.ac.cn) |
| Abstract | Phase equilibrium conditions for tetrabutylphosphonium chloride (TBPC) + CH4 double semiclathrate hydrates (SCHs) were determined to evaluate the stabilization effect of TBPC for potential applications of hydrate-based gas separation and storage. The equilibrium data revealed that TBPC strongly enhances the stability of CH4 hydrates by increasing the equilibrium temperature at a given pressure, and the system showed the strongest stabilization effect at a TBPC mass fraction of 0.30. The dissociation enthalpies of (TBPC + CH4) SCHs were calculated from the experimental data obtained in this work using the Clausius-Clapeyron equation and the Peng-Robinson equation of state. It was found that the mean dissociation enthalpies for (TBPC + CH4) SCHs with TBPC mass fractions of 0.05 to 0.50 were (135.49 to 158.32) kJ.(mol of CH4)(-1), which were much higher than that of the pure CH4 hydrate. In addition, to identify the molecular behavior and hydrate structure, Raman spectroscopy measurements were conducted at 203 K. The spectra demonstrated that (TBPC+CH4) SCHs were formed in tetragonal structure I with small 5(12) cages trapping CH4 molecules. |
| DOI | 10.1021/acs.jced.7b00738 |
| WOS Keyword | BUTYL AMMONIUM BROMIDE ; PLUS CARBON-DIOXIDE ; PHASE-EQUILIBRIUM CONDITIONS ; GUEST GAS ENCLATHRATION ; N-BUTYLAMMONIUM CHLORIDE ; SEMI-CLATHRATE HYDRATE ; AQUEOUS-SOLUTIONS ; CO2 CAPTURE ; DISSOCIATION ENTHALPIES ; STABILITY CONDITIONS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51606198] ; National Natural Science Foundation of China[51376182] ; Natural Science Foundation of Guangdong Province[2016A030310126] ; Key Laboratory of Gas Hydrate, Chinese Academy of Sciences[Y607jb1001] |
| WOS Research Area | Thermodynamics ; Chemistry ; Engineering |
| Funding Organization | National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Key Laboratory of Gas Hydrate, Chinese Academy of Sciences |
| WOS Subject | Thermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical |
| WOS ID | WOS:000418393800036 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/22752 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Liang, Deqing |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Shi, Lingli,Ding, Jiaxiang,Liang, Deqing. Thermodynamic Properties of Double Semiclathrate Hydrates Formed with Tetrabutylphosphonium Chloride + CH4[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2017,62(12):4377-4382. |
| APA | Shi, Lingli,Ding, Jiaxiang,&Liang, Deqing.(2017).Thermodynamic Properties of Double Semiclathrate Hydrates Formed with Tetrabutylphosphonium Chloride + CH4.JOURNAL OF CHEMICAL AND ENGINEERING DATA,62(12),4377-4382. |
| MLA | Shi, Lingli,et al."Thermodynamic Properties of Double Semiclathrate Hydrates Formed with Tetrabutylphosphonium Chloride + CH4".JOURNAL OF CHEMICAL AND ENGINEERING DATA 62.12(2017):4377-4382. |
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