Effect of pressure on methane recovery from natural gas hydrates by methane-carbon dioxide replacement

doi:10.1016/j.apenergy.2018.02.109

	Effect of pressure on methane recovery from natural gas hydrates by methane-carbon dioxide replacement
	Xu, Chun-Gang 1,2,3,4; Cai, Jing 1,2,3,4,5; Yu, Yi-Song 1,2,3,4,5; Yan, Ke-Feng 1,2,3,4; Li, Xiao-Sen 1,2,3,4
刊名	APPLIED ENERGY
	2018-05-01
卷号	217 页码:527-536
关键词	CH4 hydrate Replacement CO2 In-situ Raman
ISSN号	0306-2619
DOI	10.1016/j.apenergy.2018.02.109
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn)
英文摘要	Methane recovery from natural gas hydrates via CH4-CO2 replacement is promising for its advantage in methane recovery and CO2 capture in the form of CO2 hydrates. However, up to date, it is still unclear what influence the CH4-CO2 replacement rate and CH4 recovery efficiency. In this work, the effects of the pressure on the dynamic of the replacement are systematically investigated by in situ Raman. The results indicate the CH4-CO2 replacement rate and CH4 recovery efficiency are related to the total operating pressure and the CH4 partial pressure in a CH4-CO2 binary system. On the one hand, the CH4-CO2 replacement can only occur under such operating pressures that the CH4 partial pressure is lower than the pure CH4 hydrate formation equilibrium pressure and the CO2 partial pressure is higher than the pure CO2 hydrate formation equilibrium pressure. On the other hand, under a certain pressure, the lower CH4 partial pressure leads to the higher replacement rate. Due to that the condition of temperature and pressure changes continuously in the process of the replacement, the research results are of significance for guiding the successful CH4-CO2 replacement.
资助项目	Key Program of National Natural Science Foundation of China[51736009] ; National Key R&D Program of China[2016YFC0304002] ; National Key R&D Program of China[2017YFC0307306] ; National Natural Science Fund[51476174] ; International S&T Cooperation Program of China[2015DFA61790] ; CAS Science and Technology Apparatus Development Program[YZ201619] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-JSC033] ; National Natural Science Fund of Guangdong Province, China[2017A030313301]
WOS关键词	LIQUID CO2 ; MOLECULAR SIMULATION ; CH4 ; GASIFICATION ; EXPLOITATION ; CONVERSION ; SYNGAS
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000430030400044
资助机构	Key Program of National Natural Science Foundation of China ; National Key R&D Program of China ; National Natural Science Fund ; International S&T Cooperation Program of China ; CAS Science and Technology Apparatus Development Program ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences ; National Natural Science Fund of Guangdong Province, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/23017]
专题	中国科学院广州能源研究所
通讯作者	Li, Xiao-Sen
作者单位	1.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510641, Guangdong, Peoples R China 3.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Xu, Chun-Gang,Cai, Jing,Yu, Yi-Song,et al. Effect of pressure on methane recovery from natural gas hydrates by methane-carbon dioxide replacement[J]. APPLIED ENERGY,2018,217:527-536.
APA	Xu, Chun-Gang,Cai, Jing,Yu, Yi-Song,Yan, Ke-Feng,&Li, Xiao-Sen.(2018).Effect of pressure on methane recovery from natural gas hydrates by methane-carbon dioxide replacement.APPLIED ENERGY,217,527-536.
MLA	Xu, Chun-Gang,et al."Effect of pressure on methane recovery from natural gas hydrates by methane-carbon dioxide replacement".APPLIED ENERGY 217(2018):527-536.