The effect of hydrate promoters on gas uptake

doi:10.1039/c7cp02173a

GIEC OpenIR > 中国科学院广州能源研究所

	The effect of hydrate promoters on gas uptake
	Xu, Chun-Gang 1,2,3; Yu, Yi-Song 1,2,3,4; Ding, Ya-Long 1,2,3,4; Cai, Jing 1,2,3,4; Li, Xiao-Sen1,2,3
	2017-08-28
发表期刊	PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷号	19 期号:32 页码:21769-21776
摘要	Gas hydrate technology is considered as a promising technology in the fields of gas storage and transportation, gas separation and purification, seawater desalination, and phase-change thermal energy storage. However, to date, the technology is still not commercially used mainly due to the low gas hydrate formation rate and the low gas uptake. In this study, the effect of hydrate promoters on gas uptake was systematically studied and analyzed based on hydrate-based CH4 storage and CO2 capture from CO2/H-2 gas mixture experiments. Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR) and gas chromatography (GC) were employed to analyze the microstructures and gas compositions. The results indicate that the effect of the hydrate promoter on the gas uptake depends on the physical and chemical properties of the promoter and gas. A strong polar ionic promoter is not helpful towards obtaining the ideal gas uptake because a dense hydrate layer is easily formed at the gas-liquid interface, which hinders gas diffusion from the gas phase to the bulk solution. For a weak polar or non-polar promoter, the gas uptake depends on the dissolution characteristics among the different substances in the system. The lower the mutual solubility among the substances co-existing in the system, the higher the independence among the substances in the system; this is so that each phase has an equal chance to occupy the hydrate cages without or with small interactions, finally leading to a relatively high gas uptake.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c7cp02173a
研究领域[WOS]	Chemistry ; Physics
关键词[WOS]	CARBON-DIOXIDE CAPTURE ; CLATHRATE HYDRATE ; METHANE SEPARATION ; CO2 SEPARATION ; FIXED-BED ; STORAGE ; SYSTEM ; DESALINATION ; EQUIPMENT ; KINETICS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Fund(51376184) ; 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 Key Research and Development Plan of China(2016YFC0304002)
WOS类目	Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:000407765900062
引用统计	被引频次：47[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/344007/16279
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 2.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100083, 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	Xu, Chun-Gang,Yu, Yi-Song,Ding, Ya-Long,et al. The effect of hydrate promoters on gas uptake[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2017,19(32):21769-21776.
APA	Xu, Chun-Gang,Yu, Yi-Song,Ding, Ya-Long,Cai, Jing,&Li, Xiao-Sen.(2017).The effect of hydrate promoters on gas uptake.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,19(32),21769-21776.
MLA	Xu, Chun-Gang,et al."The effect of hydrate promoters on gas uptake".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 19.32(2017):21769-21776.