Experimental and modeling investigations on CH4 hydrate phase equilibria in multi-ion "Haima" cold seep environment
文献类型：期刊论文
| 作者 | Xie, Yan1,2,4,5; Huang, Yanyan1,2,4,5; Feng, Jingchun1,2,4,5; Wu, Guozhong1,2,4,5; Xu, Zhijie1,2,5; Zhang, Zhen1,2,4,5; Wang, Yi3; Zhou, Zhenwu1,2,4,5; Wang, Bin1,2,4,5; Zhang, Si1,2,4,5 |
| 刊名 | GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 128页码:15 |
| 关键词 | Deep-sea cold seep Phase equilibrium Salt ion CH4 hydrate Thermodynamic model |
| ISSN号 | 2949-9097 |
| DOI | 10.1016/j.jgsce.2024.205362 |
| 通讯作者 | Feng, Jingchun(fengjc@gdut.edu.cn) |
| 英文摘要 | CH4 hydrate formation represents a primary pathway for CH4 transformation within the deep-sea CH4 seepage environment, holding utmost significance for global carbon budget and marine hydrate resources distribution. As a typical active CH4 seeping, however, the influence characteristics of various ions in in-situ "Haima" cold seep on CH4 hydrate stability remains unclear. In this study, founded on the multiple ion components from the seawater of the "Haima" cold seep, the effects of salt ion categories and concentrations on CH4 hydrate phase equilibrium were investigated, and a thermodynamic model suitable for high-salinity deep-sea environment was proposed. Results indicated that, in higher concentration salt solutions (>3.45 wt%), hydrate stability was no longer solely governed by salinity, and significant differences among ion types were observed. The inhibitory strength of the ions on CH4 hydrate stability followed the order of Mg2+>Na+>Ca2+>Mn2+approximate to K+>Sr2+>Ba2+. The predicted CH4 hydrate phase equilibrium conditions from the proposed model exhibited strong agreement with both experimental results and data reported in the literature. The average absolute deviation of pressure (AADP) from the model prediction was 2.7% and 4.3% compared to the experimental and published literature data, respectively, which outperformed those of the CSMHYD model, Chen-Guo model and Hu-Lee-Sum correlation (4.7%-6.2%). In light of the marine temperature gradient and prediction results, it is estimated that CH4 hydrate could maintain stably below 600 m depth of the seawater in the cold seep area. |
| WOS关键词 | EQUATION-OF-STATE ; METHANE HYDRATE ; SUPPRESSION TEMPERATURE ; UNIVERSAL CORRELATION ; HIGH-PRESSURE ; GAS HYDRATE ; CLIMATE-CHANGE ; NATURAL-GAS ; WATER ; DISSOCIATION |
| 资助项目 | National Natural Science Foundation of China[42325603] ; National Natural Science Foundation of China[42227803] ; National Natural Science Foundation of China[42376215] ; National Natural Science Foundation of China[42206223] ; National Key Research and Development Program[2021YFF0502300] ; Guangdong Natural Resources Foundation[GDNRC[2023]30] ; PI project of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML20190609] ; PI project of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2022009] ; PI project of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML20230921] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001252696600001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program ; Guangdong Natural Resources Foundation ; PI project of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/42221]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Feng, Jingchun |
| 作者单位 | 1.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China 2.Guangdong Univ Technol, Sch Ecol Environm & Resources, Guangzhou 510006, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Res Ctr Ecol & Environm Coastal Area & Deep Sea, Guangzhou 511458, Peoples R China 5.Guangdong Univ Technol, Guangdong Basic Res Ctr Excellence Ecol Secur & Gr, Guangzhou 510006, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Yan,Huang, Yanyan,Feng, Jingchun,et al. Experimental and modeling investigations on CH4 hydrate phase equilibria in multi-ion "Haima" cold seep environment[J]. GAS SCIENCE AND ENGINEERING,2024,128:15. |
| APA | Xie, Yan.,Huang, Yanyan.,Feng, Jingchun.,Wu, Guozhong.,Xu, Zhijie.,...&Yang, Zhifeng.(2024).Experimental and modeling investigations on CH4 hydrate phase equilibria in multi-ion "Haima" cold seep environment.GAS SCIENCE AND ENGINEERING,128,15. |
| MLA | Xie, Yan,et al."Experimental and modeling investigations on CH4 hydrate phase equilibria in multi-ion "Haima" cold seep environment".GAS SCIENCE AND ENGINEERING 128(2024):15. |
入库方式： OAI收割
来源：广州能源研究所
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