Raman spectroscopic studies on carbon dioxide separation from fuel gas via clathrate hydrate in the presence of tetrahydrofuran

doi:10.1016/j.apenergy.2018.01.055

GIEC OpenIR

	Raman spectroscopic studies on carbon dioxide separation from fuel gas via clathrate hydrate in the presence of tetrahydrofuran
	Cai, Jing 1,2,3,4,5; Zhang, Yu1,2,3,4 ; Xu, Chun-Gang 1,2,3,4; Xia, Zhi-Ming 1,2,3,4; Chen, Zhao-Yang 1,2,3,4; Li, Xiao-Sen1,2,3,4
	2018-03-15
发表期刊	APPLIED ENERGY
ISSN	0306-2619
卷号	214 页码:92-102
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn)
摘要	Hydrate carbon dioxide (CO2) separation is a promising method for reducing carbon emission. In this work, water-solubility of tetrahydrofuran (THF) was added into water to generate the single gas/liquid interface. In order to understand hydrate nucleation and crystallization well, CO2 concentration in the residual gaseous phase was measured, morphology of the hydrate formation was filmed, and structure changes of compounds around the gas/liquid interface was monitored by in situ Raman spectrometer. Two groups of experiments were carried out at 274.15 K and 4.0 MPa in the systems with and without gas supply. The experimental results illustrate that hydrate formation is completed in 5 h according to CO2 concentration, gas consumption and morphology, however, the compound transition and hydrate crystallization are still in process from the microstructure point of view. For the system with gas supply, the hydrates initially occur in the gas/liquid interface due to stable gas flux in the boundray layer, where Raman spectra change regularly at the beginning. Such stable gas flux has a positive impact on changing water aggregation. This change of water aggregation benefits for the original structures in the process of hydrate nucleation. With the hydrate formation, the hydrate nucleation interface is moving from the gas/liquid interface towards the THF solution. Otherwise, for the system without gas supply, no obvious hydrate was observed in the gas/liquid interface, and Raman spectra around the interface change with the saltation from gaseous phase towards the THF solution. For the two systems, THF hydrates form prior to the multi-hydrates and keep forming, and both intensity of Raman peaks around the interfaces is the weakest.
关键词	Hydrate Fuel gas CO2 separation THF In situ Raman Interface
DOI	10.1016/j.apenergy.2018.01.055
关键词[WOS]	HYDROGEN STORAGE ; CO2 CAPTURE ; REFRIGERATION ; CYCLOPENTANE ; EQUILIBRIUM ; REPLACEMENT ; EQUIPMENT ; MIXTURES ; KINETICS ; CO2/H-2
收录类别	SCI
语种	英语
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] ; Key Laboratory Fund of Gas Hydrate[Y607j91001]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	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 ; Key Laboratory Fund of Gas Hydrate
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000426411300008
出版者	ELSEVIER SCI LTD
引用统计	被引频次：38[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/344007/23372
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 Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 5.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	Cai, Jing,Zhang, Yu,Xu, Chun-Gang,et al. Raman spectroscopic studies on carbon dioxide separation from fuel gas via clathrate hydrate in the presence of tetrahydrofuran[J]. APPLIED ENERGY,2018,214:92-102.
APA	Cai, Jing,Zhang, Yu,Xu, Chun-Gang,Xia, Zhi-Ming,Chen, Zhao-Yang,&Li, Xiao-Sen.(2018).Raman spectroscopic studies on carbon dioxide separation from fuel gas via clathrate hydrate in the presence of tetrahydrofuran.APPLIED ENERGY,214,92-102.
MLA	Cai, Jing,et al."Raman spectroscopic studies on carbon dioxide separation from fuel gas via clathrate hydrate in the presence of tetrahydrofuran".APPLIED ENERGY 214(2018):92-102.