Effects of depressurizing rate on methane hydrate dissociation within large-scale experimental simulator

doi:10.1016/j.apenergy.2021.117750

GIEC OpenIR

	Effects of depressurizing rate on methane hydrate dissociation within large-scale experimental simulator
	Feng, Jing-Chun 1,2; Li, Bo 3; Li, Xiao-Sen4,5 ; Wang, Yi 4,5
	2021-12-15
发表期刊	APPLIED ENERGY
ISSN	0306-2619
卷号	304 页码:10
通讯作者	Wang, Yi(wangyi@ms.giec.ac.cn)
摘要	Methane hydrate is the world's largest hydrocarbon reservoir, and can be performed as an important "bridging" fuel to help the transformation of current energy situation to low-carbon energy system. High efficient scenarios of hydrate dissociation at the in situ environment is the primary prerequisite for successfully harvesting natural gas from hydrate reservoir. This work investigates the influences of depressurizing rate on methane hydrate dissociation within a large-scale hydrate simulator. Experimental cases with different depressurizing rates to dissociate water-saturated hydrate sample, which is the typical marine hydrate type, have been carried out in this study. Results indicate that gas production rate decreases with the improvement of the depressurizing rate, and increasing depressurizing rate is feasible for hydrate reformation during this period, suggesting that the depressurizing rate should not be too fast before the inner pressure decreases to equilibrium pressure corresponding to the in situ temperature. When the pressure decreases below the equilibrium pressure, the gas production rate, recovery, and heat transfer rate decline with the rising of depressurizing rate, whereas the lowest depressurizing rate cannot gain the highest gas production rate and recovery as well, demonstrating the optimal depressurizing rate existed in the depressurization stage. Mechanism analysis showed that the optimal depressurizing rate can be obtained when the fluid velocity victories in accordance with the heat transfer vector in the hydrate reservoir.
关键词	Methane hydrate Hydrate dissociation Depressurization rate Optimization Large-scale
DOI	10.1016/j.apenergy.2021.117750
关键词[WOS]	HEAT-TRANSFER CHARACTERISTICS ; NATURAL-GAS HYDRATE ; SOUTH CHINA SEA ; BEARING SEDIMENTS ; POROUS-MEDIA ; SHENHU AREA ; RECOVERY ; STIMULATION ; CONJUNCTION ; MECHANISMS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42022046] ; National Natural Science Foundation of China[52122602] ; National Natural Science Foundation of China[51806251] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0401] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0403]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	National Natural Science Foundation of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000703612900009
出版者	ELSEVIER SCI LTD
引用统计	被引频次：17[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/34787
专题	中国科学院广州能源研究所
通讯作者	Wang, Yi
作者单位	1.Guangdong Univ Technol, Inst Environm & Ecol Engn, Guangzhou 510006, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China 3.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Feng, Jing-Chun,Li, Bo,Li, Xiao-Sen,et al. Effects of depressurizing rate on methane hydrate dissociation within large-scale experimental simulator[J]. APPLIED ENERGY,2021,304:10.
APA	Feng, Jing-Chun,Li, Bo,Li, Xiao-Sen,&Wang, Yi.(2021).Effects of depressurizing rate on methane hydrate dissociation within large-scale experimental simulator.APPLIED ENERGY,304,10.
MLA	Feng, Jing-Chun,et al."Effects of depressurizing rate on methane hydrate dissociation within large-scale experimental simulator".APPLIED ENERGY 304(2021):10.