Institutional Repository of Coll Energy & Power Engn
Investigation of the formation characteristics of methane hydrate in frozen porous media | |
Zhang, Xuemin1,2,3; Zhang, Shanling1,2; Li, Yinhui1,2; Li, Jinping1,2,3; Wang, Yingmei1,2,4; Yang, Li1,2 | |
2022-05-12 | |
发表期刊 | Petroleum Science and Technology |
ISSN | 1091-6466 |
卷号 | 40期号:17页码:2123-2140 |
摘要 | The replacement technique of CO2–CH4 hydrate in naturally occurring gas hydrates is a promising method for achieving CO2 storage and CH4 recovery in permafrost regions. Revealing the formation characteristics of CH4 hydrate becomes an urgent need in porous medium below the freezing point. For this purpose, the formation experiment was carried out under different conditions and the formation characteristics were systematically investigated. The result indicated that the initial pressure was the key factor affecting the formation process of CH4 hydrate. And the final pressure drop was greater at higher initial pressure conditions. The final pressure drop reached to 0.92 MPa when the initial pressure was 9 MPa under the same temperature conditions. The results also illustrated that, the formation rate of hydrate was the fastest when the temperatures were closely to the freezing point. The average formation rate of CH4 hydrate reached to 0.646 mmol/h when the temperature was 273.15 K. Moreover, the smaller the particle size was, the higher the final conversion rate of ice. The final conversion rate reached to 56.5% when the initial pressure was 9 MPa. The results are of significance for exploiting natural gas hydrate in the permafrost regions.Highlights The formation characteristics of methane were studied in porous media below the freezing point. The higher initial pressure could enhance the final conversion rates of ice. The formation rate of methane was the fastest when the temperature was closely to the freezing point. The pressure disturbance could improve the formed amount of methane hydrate in porous media. © 2022 Taylor & Francis Group, LLC. |
关键词 | Carbon dioxide Drops Freezing Gas hydrates Hydration Methane Particle size Permafrost Pressure drop CH 4 CH4 hydrate Conversion rates Formation characteristics Formation rates Freezing point Initial pressure Methane hydrates Permafrost region Porous medium |
DOI | 10.1080/10916466.2022.2036191 |
收录类别 | EI ; SCIE |
语种 | 英语 |
WOS研究方向 | Energy & Fuels ; Engineering |
WOS类目 | Energy & Fuels ; Engineering, Chemical ; Engineering, Petroleum |
WOS记录号 | WOS:000760096400001 |
出版者 | Taylor and Francis Ltd. |
EI入藏号 | 20221011767292 |
EI主题词 | Porous materials |
EI分类号 | 512.2 Natural Gas Deposits ; 522 Gas Fuels ; 804.1 Organic Compounds ; 804.2 Inorganic Compounds ; 951 Materials Science |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/159118 |
专题 | 能源与动力工程学院 马克思主义学院 |
通讯作者 | Zhang, Xuemin |
作者单位 | 1.Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou, Peoples R China; 2.Gansu Prov Key Lab Complementary Energy Syst Biom, Lanzhou, Peoples R China; 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou, Peoples R China; 4.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China |
第一作者单位 | 能源与动力工程学院 |
通讯作者单位 | 能源与动力工程学院 |
第一作者的第一单位 | 能源与动力工程学院 |
推荐引用方式 GB/T 7714 | Zhang, Xuemin,Zhang, Shanling,Li, Yinhui,et al. Investigation of the formation characteristics of methane hydrate in frozen porous media[J]. Petroleum Science and Technology,2022,40(17):2123-2140. |
APA | Zhang, Xuemin,Zhang, Shanling,Li, Yinhui,Li, Jinping,Wang, Yingmei,&Yang, Li.(2022).Investigation of the formation characteristics of methane hydrate in frozen porous media.Petroleum Science and Technology,40(17),2123-2140. |
MLA | Zhang, Xuemin,et al."Investigation of the formation characteristics of methane hydrate in frozen porous media".Petroleum Science and Technology 40.17(2022):2123-2140. |
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