气候变化领域集成服务门户(CCPortal): Investigation of the formation characteristics of methane hydrate in frozen porous media

CCPortal

DOI	10.1080/10916466.2022.2036191
	Investigation of the formation characteristics of methane hydrate in frozen porous media
	Zhang, Xuemin; Zhang, Shanling; Li, Yinhui; Li, Jinping; Wang, Yingmei; Yang, Li
通讯作者	Zhang, XM (通讯作者)，Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou, Peoples R China.
发表日期	2020
ISSN	1091-6466
EISSN	1532-2459
英文摘要	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.
关键词	GAS HYDRATE WATER DISSOCIATION STORAGE SEDIMENTS EQUILIBRIUM PRESSURE HUFF ICE
英文关键词	CH4 hydrate; conversion rate; formation rate; freezing point; porous media
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
来源期刊	PETROLEUM SCIENCE AND TECHNOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254706
作者单位	[Zhang, Xuemin; Zhang, Shanling; Li, Yinhui; Li, Jinping; Wang, Yingmei; Yang, Li] Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou, Peoples R China; [Zhang, Xuemin; Zhang, Shanling; Li, Yinhui; Li, Jinping; Wang, Yingmei; Yang, Li] Gansu Prov Key Lab Complementary Energy Syst Biom, Lanzhou, Peoples R China; [Zhang, Xuemin; Li, Jinping] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou, Peoples R China; [Wang, Yingmei] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China
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]. 中国科学院西北生态环境资源研究院,2020.
APA	Zhang, Xuemin,Zhang, Shanling,Li, Yinhui,Li, Jinping,Wang, Yingmei,&Yang, Li.(2020).Investigation of the formation characteristics of methane hydrate in frozen porous media.PETROLEUM SCIENCE AND TECHNOLOGY.
MLA	Zhang, Xuemin,et al."Investigation of the formation characteristics of methane hydrate in frozen porous media".PETROLEUM SCIENCE AND TECHNOLOGY (2020).