气候变化领域集成服务门户(CCPortal): Experimental study on the formation characteristics of CO2 hydrate in porous media below the freezing point: Influence of particle size and temperature on the formation process and storage capacity

CCPortal

DOI	10.1002/ese3.1089
	Experimental study on the formation characteristics of CO2 hydrate in porous media below the freezing point: Influence of particle size and temperature on the formation process and storage capacity
	Zhang, Xuemin; Zhang, Mengjun; Yang, Huijie; Li, Jinping; Li, Yinhui; Wu, Qingbai
通讯作者	Zhang, XM (通讯作者)，Lanzhou Univ Technol, Sch Energy & Power Engn, Lanzhou 730050, Peoples R China.
发表日期	2022
EISSN	2050-0505
起始页码	1164
结束页码	1176
卷号	10 期号:4
英文摘要	CO2 storage in form of hydrate in stratigraphic sediment has been considered to be one of the effective strategies against global warming and mitigating CO2 emission, which has attracted extensive research interest in the field of greenhouse gas (GHG) reduction and natural gas hydrate exploitation in permafrost regions. How the formation characteristics of CO2 hydrate influences the storage process is a fundamental issue related to the hydrate-based technology of CO2 sequestration and storage in the permafrost regions. In this study, the formation experiments of CO2 hydrate were carried out in porous media below freezing point under the condition of different particle sizes and temperatures. The influence of different factors on the formation rate, conversion rate, and gas storage capacity of CO2 hydrate were studied through experiments. It was indicated that temperature and ice particle size had a significant effect on the formation characteristics of CO2 hydrate in porous media below the freezing point. However, it did not mean that the greater the degree of supercooling was the better the hydrate formation would be. The formation rate and conversion rate of hydrate were relatively higher when the temperature approached to the freezing point. In contrast, the gas storage capacity of CO2 hydrate was higher than that above the freezing point. The average formation rate, conversion rate, and gas storage capacity of CO2 hydrate were obtained under the temperature of 270.15 K, which was 3.68 x 10(-4) mol h(-1), 40.47%, and 75.09 L/L, respectively. When the ice particle size was 700 mu m under the same particle size of quartz sand, the conversion rate and gas storage capacity of CO2 hydrate was the maximum, reached to 49.69% and 92.19 L/L, respectively. These results provide greater insights into the hydrate-based technology of CO2 sequestration and storage in sediments.
关键词	METHANE HYDRATE GAS-HYDRATE CARBON-DIOXIDE CLATHRATE HYDRATE SUPERHEATED ICE KINETICS GROWTH DIFFRACTION POWDERS
英文关键词	CO2 hydrate; formation rate; freezing point; gas storage capacity; porous media
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:000753317300001
来源期刊	ENERGY SCIENCE & ENGINEERING
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/254582
作者单位	[Zhang, Xuemin; Zhang, Mengjun; Yang, Huijie; Li, Jinping; Li, Yinhui; Wu, Qingbai] Lanzhou Univ Technol, Coll Energy & Power Engn, Lanzhou, Peoples R China; [Zhang, Xuemin; Zhang, Mengjun; Yang, Huijie; Li, Jinping; Li, Yinhui] Key Lab Complementary Energy Syst Biomass & Solar, Lanzhou, Gansu, Peoples R China; [Zhang, Xuemin; Zhang, Mengjun; Yang, Huijie; Li, Jinping; Li, Yinhui] Lanzhou Univ Technol, Western China Energy & Environm Res Ctr, Lanzhou, Peoples R China; [Wu, Qingbai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xuemin,Zhang, Mengjun,Yang, Huijie,et al. Experimental study on the formation characteristics of CO2 hydrate in porous media below the freezing point: Influence of particle size and temperature on the formation process and storage capacity[J]. 中国科学院西北生态环境资源研究院,2022,10(4).
APA	Zhang, Xuemin,Zhang, Mengjun,Yang, Huijie,Li, Jinping,Li, Yinhui,&Wu, Qingbai.(2022).Experimental study on the formation characteristics of CO2 hydrate in porous media below the freezing point: Influence of particle size and temperature on the formation process and storage capacity.ENERGY SCIENCE & ENGINEERING,10(4).
MLA	Zhang, Xuemin,et al."Experimental study on the formation characteristics of CO2 hydrate in porous media below the freezing point: Influence of particle size and temperature on the formation process and storage capacity".ENERGY SCIENCE & ENGINEERING 10.4(2022).