Multiscale analysis of the hydrate based carbon capture from gas mixtures containing carbon dioxide

doi:10.1038/s41598-021-88531-x

	Multiscale analysis of the hydrate based carbon capture from gas mixtures containing carbon dioxide
	Zhou, Xuebing 2; Zang, Xiaoya 3; Long, Zhen 1; Liang, Deqing 4
刊名	SCIENTIFIC REPORTS
	2021-04-28
卷号	11 期号:1 页码:9
ISSN号	2045-2322
DOI	10.1038/s41598-021-88531-x
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
英文摘要	To reveal the kinetic performance of gas molecules in hydrate growth, hydrate formation from pure CO2, flue gas, and biogas was measured using in-situ Raman and macroscopic methods at 271.6 K. In the in-situ Raman measurements, Raman peaks of gases in the hydrate phase were characterised and normalised by taking the water bands from 2800 to 3800 cm(-1) as a reference, whose line shapes were not found to have a noticeable change in the conversion from Ih ice to sI hydrate. The hydrate growth was suggested to start with the formation of unsaturated hydrate nuclei followed by gas adsorption. In hydrate formed from all tested gases, CO2 concentrations in hydrate nuclei were found to be 23-33% of the saturation state. In the flue gas system, the N-2 concentration reached a saturation state once hydrate nuclei formed. In the biogas system, competitive adsorption of CH4 and CO2 molecules was observed, while N-2 molecules hardly evolved in hydrate formation. Combined with micro- and macroscopic analysis, small molecules such as N-2 and CO2 were suggested to be more active in the formation of hydrate nuclei, and the preferential adsorption of CO2 molecules took place in the subsequent gas adsorption process.
资助项目	National Natural Science Foundation of China[51706230] ; National Natural Science Foundation of China[51676197] ; National Key Research and Development Plan of China[2017YFC0307306] ; Guangdong Natural Science Foundation[2020A1515010374] ; Guangdong Natural Science Foundation[2018B0303110007] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Guangdong MEPP Fund ; GDOE[[2019]A39] ; Pearl River S&T Nova Program of Guangzhou[201806010114]
WOS关键词	MOLECULAR-DYNAMICS ; CO2 CAPTURE ; ICE ; SPECTROSCOPY ; KINETICS ; GROWTH ; NUCLEATION ; SEPARATION ; STABILITY ; INSIGHT
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE RESEARCH
WOS记录号	WOS:000656067200019
资助机构	National Natural Science Foundation of China ; National Key Research and Development Plan of China ; Guangdong Natural Science Foundation ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; Guangdong MEPP Fund ; GDOE ; Pearl River S&T Nova Program of Guangzhou
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33304]
专题	中国科学院广州能源研究所
通讯作者	Liang, Deqing
作者单位	1.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Xuebing,Zang, Xiaoya,Long, Zhen,et al. Multiscale analysis of the hydrate based carbon capture from gas mixtures containing carbon dioxide[J]. SCIENTIFIC REPORTS,2021,11(1):9.
APA	Zhou, Xuebing,Zang, Xiaoya,Long, Zhen,&Liang, Deqing.(2021).Multiscale analysis of the hydrate based carbon capture from gas mixtures containing carbon dioxide.SCIENTIFIC REPORTS,11(1),9.
MLA	Zhou, Xuebing,et al."Multiscale analysis of the hydrate based carbon capture from gas mixtures containing carbon dioxide".SCIENTIFIC REPORTS 11.1(2021):9.