Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes | |
Li, Xiao-Yan1,3,4,5,6; Feng, Jing-Chun2; Li, Xiao-Sen1,3,4,5 ; Wang, Yi1,3,4,5; Hu, Heng-Qi1,3,4,7
| |
| 2022 | |
| Source Publication | APPLIED ENERGY
 |
| ISSN | 0306-2619 |
| Volume | 305Pages:11 |
| Corresponding Author | Li, Xiao-Sen(lixs@ms.giec.ac.cn) ; Wang, Yi(wangyi@ms.giec.ac.cn) |
| Abstract | Gas hydrate found in nature is mainly existed in deposit, such as marine deposit and permafrost. The thermophysical properties of the deposit are largely influenced by the formation features of gas hydrate, thereby affecting the hydrate production. In this manuscript, the experiments of formation and decomposition behavior of gas hydrate in the deposit with different grain sizes (40-60 mesh, 80-120 mesh, 325-400 mesh) and different thermal conductivities (0.926 W/m.K, 28.8 W/m.K, 41.9 W/m.K) were conducted in the small cubic hydrate simulator, and the coupling effect of the heat and mass transport on the hydrate formation and dissociation were researched. It was concluded that the mass transport rate in the deposit dominated the hydrate formation. The formation of gas hydrate was initial at the contact surfacing of gas-water and grew gradually in the gas-rich region, and the hydrate formation amount in the water-rich region was little. In the deposit with the grain size of 80-120 mesh and 325-400 mesh, there was no obvious induction time for the hydrate formation that occurred during gas injection. Be different from the hydrate formation, the heat transfer rate of the deposit restricted chiefly methane hydrate dissociation. With the raise of grain size and thermal conductivity of deposit, methane hydrate decomposition rate enhanced. It's also found that the formed hydrate acted as cementation in porous medium with the grain size of 80-120 mesh and 325-400 mesh. The heat transfer rate of the deposit would significantly decrease when most of the cementation between the porous medium was disappeared as a result of hydrate dissociation, and the hydrate saturation in sediments at this time was defined as the critical hydrate saturation (50-80% of the initial hydrate saturation). The critical hydrate saturation is meaningful for gas hydrate resource prospecting and the risk assessment of gas hydrate production in actual fields. |
| Keyword | Methane hydrate Grain size Thermal conductivity Formation and decomposition Cementation Critical hydrate saturation |
| DOI | 10.1016/j.apenergy.2021.117852 |
| WOS Keyword | GAS-PRODUCTION ; HEAT-TRANSFER ; PILOT-SCALE ; SILICA SAND ; DISSOCIATION ; DEPRESSURIZATION ; PERMEABILITY ; RECOVERY ; MASS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Key Program of National Natural Science Foundation of China[51736009] ; National Natural Science Foundation of China[52122602] ; National Natural Science Foundation of China[42022046] ; National Natural Science Foundation of China[51806251] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2020D044] ; Youth Innovation Promotion Association CAS[2018382] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YJKYYQ20200061] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2019B030302004] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2020B0301030003] |
| WOS Research Area | Energy & Fuels ; Engineering |
| Funding Organization | Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; Special Project for Marine Economy Development of Guangdong Province ; Youth Innovation Promotion Association CAS ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000701873700002 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/34796 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Xiao-Sen; Wang, Yi |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Guangdong Univ Technol, Inst Environm & Ecol Engn, Guangzhou 510006, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Univ Sci & Technol China, Hefei 230000, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Li, Xiao-Yan,Feng, Jing-Chun,Li, Xiao-Sen,et al. Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes[J]. APPLIED ENERGY,2022,305:11. |
| APA | Li, Xiao-Yan,Feng, Jing-Chun,Li, Xiao-Sen,Wang, Yi,&Hu, Heng-Qi.(2022).Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes.APPLIED ENERGY,305,11. |
| MLA | Li, Xiao-Yan,et al."Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes".APPLIED ENERGY 305(2022):11. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment