The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes

doi:10.1016/j.apenergy.2018.12.080

GIEC OpenIR

	The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes
	Li, Ze-Yu ; Xia, Zhi-Ming ; Chen, Zhao-Yang ; Li, Xiao-Sen1 ; Xu, Chun-Gang ; Yan, Ran
	2019-03-15
发表期刊	APPLIED ENERGY
ISSN	0306-2619
卷号	238 页码:195-201
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn)
摘要	Hydrate-based carbon dioxide (CO2) capture and hydrogen (H-2) purification is a promising technology in clean energy fields. In this work, in order to reveal the effect and mechanism of tetrahydrofuran (THF) on the hydrate based CO2 separation from Integrated Gasification Combined Cycle (IGCC) syngas, the CO2/H-2/THF hydrates formation processes were studied with and without memory effect. According to the pressure drop curves, there appear two pressure plateaus in the CO2/H-2/THF hydrate formation processes. Furthermore, with the usage frequency of the THF solution increasing, the plateau effects are more ambiguous and difficult to be observed. It is interesting that the Raman spectra for CO2 and H-2 molecules also reveal slim Raman shifts between the two different hydrate plateaus. According to the powder X-ray diffraction (PXRD) patterns, indeed, the detail Miller indices indicates that CO2/H-2/THF hydrate mainly forms THF center dot 16.8 H2O structure in the first plateau, while mainly forms THF center dot 17 H2O structure in the second plateau. The reason for this phenomenon is mainly the influence of CO2, its large molecular size and the localized tension it causes in the water network of the small cages which can enhance the storage capability for the large cages of THF hydrate. The experimental results illustrate that the highest Split fraction (S.Fr) is 69.02% obtained at 6 MPa/284.85 K (memory effect), and this work highlights that the memory solution are more suitable for industrial application.
关键词	Gas hydrate Syngas Tetrahydrofuran Raman spectrum PXRD Crystal transform
DOI	10.1016/j.apenergy.2018.12.080
关键词[WOS]	PRE-COMBUSTION CAPTURE ; SEPARATION HBGS PROCESS ; CARBON-DIOXIDE ; HYDROGEN CLUSTERS ; CLATHRATE HYDRATE ; PHASE-EQUILIBRIA ; CO2 CAPTURE ; FUEL GAS ; MIXTURES ; PRESSURE
收录类别	SCI
语种	英语
资助项目	Key Program of the National Natural Science Foundation of China[51736009] ; National Key Research and Development Plan of China[2016YFC0304002] ; National Key Research and Development Plan of China[2017YFC0307306] ; National Natural Science Foundation of China[51879254] ; National Natural Science Foundation of China[51676196] ; National Natural Science Foundation of China[51576202] ; National Natural Science Foundation of China[51476174] ; CAS Science and Technology Apparatus Development Program[YZ201619] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Pearl River S&T Nova Program of Guangzhou[201710010098] ; Pearl River S&T Nova Program of Guangzhou[201610010164]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	Key Program of the National Natural Science Foundation of China ; National Key Research and Development Plan of China ; National Natural Science Foundation of China ; CAS Science and Technology Apparatus Development Program ; Special Project for Marine Economy Development of Guangdong Province ; Pearl River S&T Nova Program of Guangzhou
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000461262300016
出版者	ELSEVIER SCI LTD
引用统计	被引频次：21[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/344007/24774
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.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Li, Ze-Yu,Xia, Zhi-Ming,Chen, Zhao-Yang,et al. The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes[J]. APPLIED ENERGY,2019,238:195-201.
APA	Li, Ze-Yu,Xia, Zhi-Ming,Chen, Zhao-Yang,Li, Xiao-Sen,Xu, Chun-Gang,&Yan, Ran.(2019).The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes.APPLIED ENERGY,238,195-201.
MLA	Li, Ze-Yu,et al."The plateau effects and crystal transition study in Tetrahydrofuran (THF)/CO2/H-2 hydrate formation processes".APPLIED ENERGY 238(2019):195-201.