Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Investigation on methane hydrate formation in silica gel particles below the freezing point | |
Liu, Jun1,2,3,4,5; Liang, Deqing1,2,3,4
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| 2019 | |
| Source Publication | RSC ADVANCES
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| ISSN | 2046-2069 |
| Volume | 9Issue:26Pages:15022-15032 |
| Corresponding Author | Liang, Deqing(liangdq@ms.giec.ac.cn) |
| Abstract | Herein, methane hydrate formation in silica gel was studied in the temperature and pressure range of 253.1-268.1 K and 4.0-6.0 MPa, respectively. The stability of the hydrate and the morphology of methane hydrate formed in silica gel were analyzed by P-XRD and cryo-SEM technology. An NG(t) of 0.150 mol mol(-1) and the conversion of water to hydrate completely were realized at 253.1 K and 6 MPa. But the fastest NR120 of 52.96 mol min(-1) m(-3) and shortest T-90 of 160 min were achieved at 263.1 K and 6 MPa. The NG(t) of 0.136 and 90.93% water conversion to hydrate were realized at 263.1 K and 6 MPa. The temperature range of 263.1-268.1 K was the optimal temperature for methane hydrate formation and dissolution. From P-XRD patterns and cryo-SEM images, it was confirmed that most of the cubic ice was formed on the silica gel surface and it was metastable. All the silica gel spherical surfaces were covered with intermittent ice particles. Most of the methane hydrate was formed on the interconnection surface between silica gel particles rather than on the single silica gel spherical surface. The methane hydrate formed on the silica gel surface decomposed faster than pure water methane hydrate. |
| DOI | 10.1039/c9ra01973a |
| WOS Keyword | PRE-COMBUSTION CAPTURE ; FIXED-BED REACTOR ; CARBON-DIOXIDE ; CLATHRATE HYDRATE ; CO2 CAPTURE ; CUBIC ICE ; STRUCTURAL TRANSITIONS ; PHASE-EQUILIBRIA ; GAS ; KINETICS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Plan of China[2017YFC0307306] ; National Natural Science Foundation of China[41603062] |
| WOS Research Area | Chemistry |
| Funding Organization | National Key Research and Development Plan of China ; National Natural Science Foundation of China |
| WOS Subject | Chemistry, Multidisciplinary |
| WOS ID | WOS:000468641300052 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/25125 |
| 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, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.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 | Liu, Jun,Liang, Deqing. Investigation on methane hydrate formation in silica gel particles below the freezing point[J]. RSC ADVANCES,2019,9(26):15022-15032. |
| APA | Liu, Jun,&Liang, Deqing.(2019).Investigation on methane hydrate formation in silica gel particles below the freezing point.RSC ADVANCES,9(26),15022-15032. |
| MLA | Liu, Jun,et al."Investigation on methane hydrate formation in silica gel particles below the freezing point".RSC ADVANCES 9.26(2019):15022-15032. |
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