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The effect of hydrate promoters on gas uptake
Xu, Chun-Gang1,2,3; Yu, Yi-Song1,2,3,4; Ding, Ya-Long1,2,3,4; Cai, Jing1,2,3,4; Li, Xiao-Sen1,2,3
2017-08-28
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume19Issue:32Pages:21769-21776
AbstractGas 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c7cp02173a
WOS Subject ExtendedChemistry ; Physics
WOS KeywordCARBON-DIOXIDE CAPTURE ; CLATHRATE HYDRATE ; METHANE SEPARATION ; CO2 SEPARATION ; FIXED-BED ; STORAGE ; SYSTEM ; DESALINATION ; EQUIPMENT ; KINETICS
Indexed BySCI
Language英语
Funding OrganizationNational 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 SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS IDWOS:000407765900062
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16279
Collection中国科学院广州能源研究所
Affiliation1.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
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
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.
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