气候变化领域集成服务门户(CCPortal): Influence of pressure on the formation process of CH4 hydrate in porous media below the freezing point

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DOI	10.1002/ep.13601
	Influence of pressure on the formation process of CH4 hydrate in porous media below the freezing point
	Zhang, Xuemin; Li, Jinping; Wu, Qingbai; Wang, Jiaxian; Wang, Yingmei; Li, Yang
发表日期	2021
ISSN	1944-7442
EISSN	1944-7450
卷号	40 期号:4
英文摘要	Natural gas hydrates are mainly stored in the pores of the sedimentary layer in permafrost regions, and the formation characters in porous media were particularly important for the exploitation and utilization of natural gas hydrates. So, it is essential to understand the formation process of methane hydrate in porous media below freezing point. In this study, the formation process of methane hydrate was studied in a closed system in porous media below freezing point. The results indicated that the initial pressure played an important role in the formation characteristics of methane hydrate in porous media below freezing point. The higher the initial pressure was, the larger the formation rate of methane hydrate. And the maximum formation rate attained 6.46 x 10(-4) mol/h when the initial pressure was 9.0 MPa under the same temperature and particle size conditions. Furthermore, the final conversion rate was larger at higher initial pressure and the final conversion rate attained 56.5% at an initial pressure of 9.0 MPa. Furthermore, the pressure disturbance could improve the formation process of methane hydrate and the final conversion rate was larger to some extent. The relevant results will provide a theoretical reference for natural gas hydrates exploitation.
英文关键词	formation characteristics; freezing point; methane hydrate; porous media; pressure disturbance
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Engineering, Chemical ; Environmental Sciences
WOS记录号	WOS:000615936900001
来源期刊	ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
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/240264
作者单位	[Zhang, Xuemin; Li, Jinping; Wu, Qingbai; Wang, Jiaxian; Wang, Yingmei; Li, Yang] Lanzhou Univ Technol, Western China Res Ctr Energy & Environm, Lanzhou, Peoples R China; [Zhang, Xuemin; Li, Jinping; Wang, Jiaxian; Wang, Yingmei; Li, Yang] Key Lab Complementary Energy Syst Biomass & Solar, Lanzhou, Peoples R China; [Wu, Qingbai] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xuemin,Li, Jinping,Wu, Qingbai,et al. Influence of pressure on the formation process of CH4 hydrate in porous media below the freezing point[J]. 中国科学院西北生态环境资源研究院,2021,40(4).
APA	Zhang, Xuemin,Li, Jinping,Wu, Qingbai,Wang, Jiaxian,Wang, Yingmei,&Li, Yang.(2021).Influence of pressure on the formation process of CH4 hydrate in porous media below the freezing point.ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,40(4).
MLA	Zhang, Xuemin,et al."Influence of pressure on the formation process of CH4 hydrate in porous media below the freezing point".ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY 40.4(2021).