Optimization of the Production Pressure for Hydrate Dissociation by Depressurization

doi:10.1021/acs.energyfuels.0c00076

GIEC OpenIR

	Optimization of the Production Pressure for Hydrate Dissociation by Depressurization
	Li, Xiao-Yan 1,2,3,4; Li, Xiao-Sen1,2,3 ; Wang, Yi 1,2,3; Zhang, Yu1,2,3
	2020-04-16
发表期刊	ENERGY & FUELS
ISSN	0887-0624
卷号	34 期号:4 页码:4296-4306
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn) ; Wang, Yi(wangyi@ms.giec.ac.cn)
摘要	Natural gas hydrate is considered as a promising energy resource in the future. How to choose a suitable production pressure is a key issue when depressurization is taken as the production way of gas hydrate. In this study, we conducted the experiments of methane hydrate dissociation under different production pressures. The influences of production pressure on the hydrate dissociation rate and the method to optimize the production pressure were studied. The experimental results illustrated that two stages were contained in the hydrate dissociation by depressurization: the depressurization stage (DS) and the constant pressure stage (CPS). In the DS, the sensible heat of the sediments was used for hydrate dissociation, and the hydrate dissociation amount increased with the decrease of the production pressure. In the CPS, the required heat for hydrate dissociation was transferred from the surroundings. As the production pressure decreased, the hydrate dissociation rate increased. Although the lower production pressure can improve the hydrate dissociation rate, the energy input of hydrate production in field for depressurization with the lower production pressure could be larger than that with the higher production pressure. In order to improve the production efficiency, an optimizing method of production pressure was first proposed. Based on the experimental data, the optimum production pressure was calculated with this method. The calculation result indicates that the production pressure should be as close to the pressure of hydrate quadruple point (2.56 MPa) as possible. Moreover, it is worth noting that the optimum production pressure in field production could be different from that obtained by experiments because the optimum production pressure is determined by the actual function of the energy input in field. However, the evaluation method is universal.
DOI	10.1021/acs.energyfuels.0c00076
关键词[WOS]	HEAT-TRANSFER CHARACTERISTICS ; INDUCED GAS-PRODUCTION ; METHANE-HYDRATE ; NATURAL-GAS ; PRODUCTION BEHAVIOR ; POROUS-MEDIA ; WATER-FLOW ; INJECTION ; SEDIMENT ; SEA
收录类别	SCI
语种	英语
资助项目	Key Program of National Natural Science Foundation of China[51736009] ; National Natural Science Foundation of China[51676190] ; National Natural Science Foundation of China[51806251] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YZ201619] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-JSC033] ; Youth Science and Technology Innovation Talent of Guangdong[2016TQ03Z862] ; Youth Innovation Promotion Association CAS[2018382] ; Natural Science Foundation of Guangdong[2017A030313313]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; Special Project for Marine Economy Development of Guangdong Province ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences ; Youth Science and Technology Innovation Talent of Guangdong ; Youth Innovation Promotion Association CAS ; Natural Science Foundation of Guangdong
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000526324100030
出版者	AMER CHEMICAL SOC
引用统计	被引频次：24[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/344007/26977
专题	中国科学院广州能源研究所
通讯作者	Li, Xiao-Sen; Wang, Yi
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Li, Xiao-Yan,Li, Xiao-Sen,Wang, Yi,et al. Optimization of the Production Pressure for Hydrate Dissociation by Depressurization[J]. ENERGY & FUELS,2020,34(4):4296-4306.
APA	Li, Xiao-Yan,Li, Xiao-Sen,Wang, Yi,&Zhang, Yu.(2020).Optimization of the Production Pressure for Hydrate Dissociation by Depressurization.ENERGY & FUELS,34(4),4296-4306.
MLA	Li, Xiao-Yan,et al."Optimization of the Production Pressure for Hydrate Dissociation by Depressurization".ENERGY & FUELS 34.4(2020):4296-4306.