Raman Spectroscopic Analysis on the Hydrate Formed in the Hydrate-Based Flue Gas Separation Process in Presence of Sulfur Dioxide and Tetra-n-butyl Ammonium Bromide

doi:10.1080/00387010.2014.909854

GIEC OpenIR > 中国科学院广州能源研究所

	Raman Spectroscopic Analysis on the Hydrate Formed in the Hydrate-Based Flue Gas Separation Process in Presence of Sulfur Dioxide and Tetra-n-butyl Ammonium Bromide
	Chen, Chao 1,2,3; Li, Xiaosen1,2 ; Chen, Zhaoyang 1,2; Yan, Kefeng1,2 ; Zhang, Yu1,2 ; Xu, Chungang 1,2
	2015
发表期刊	SPECTROSCOPY LETTERS
卷号	48 期号:7 页码:499-505
摘要	In this work, Raman spectroscopic analysis was applied to determine the structures and cage occupancies of the hydrates that formed from the system of flue gas (simulated by carbon dioxide-nitrogen-sulfur dioxide)-sulfur dioxide aqueous solution, and from the system of flue gas-sulfur dioxide containing tetra-n-butyl ammonium bromide (TBAB) aqueous solutions (sulfur dioxide mass concentration 0, 1.0, and 7.0 wt%). Comprehensive TBAB (solid, aqueous, and hydrate) Raman spectra were also obtained. The results reveal that when TBAB is used as promoter, both sulfur dioxide and carbon dioxide are encaged in the hydrate from systems of flue gas-TBAB solution with low sulfur dioxide concentration (0, 1.0 wt%), whereas in the hydrate from the system of flue gas-sulfur dioxide highly concentrated (7.0 wt%) TBAB solution, sulfur dioxide will be the sole gas guest encaged in the semi-clathrate hydrate. This suggests the sulfur dioxide concentration significantly influences the hydrate cage occupancies and separation selectivity of the hydrate-based technology. A two-stage hydrate-based flue gas purification process is proposed: one aims at desulfurization when sulfur dioxide concentrates to a relatively high level with the solutions recycling and in the other we can remove the sulfur dioxide and carbon dioxide simultaneously.
文章类型	Article
关键词	Carbon Dioxide Hydrate Crystallization Technology Raman Spectroscopic Analysis Sulfur Dioxide Tetra-n-butyl Ammonium Bromide
WOS标题词	Science & Technology ; Technology
DOI	10.1080/00387010.2014.909854
研究领域[WOS]	Spectroscopy
关键词[WOS]	CO2 CAPTURE ; CLATHRATE HYDRATE ; CARBON-DIOXIDE ; SO2 ; IMPURITIES ; STABILITY ; PHASE ; CRYSTALS ; INDUSTRY
收录类别	SCI
语种	英语
WOS类目	Spectroscopy
WOS记录号	WOS:000348739000005
引用统计	被引频次：3[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/344007/10798
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, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing, 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	Chen, Chao,Li, Xiaosen,Chen, Zhaoyang,et al. Raman Spectroscopic Analysis on the Hydrate Formed in the Hydrate-Based Flue Gas Separation Process in Presence of Sulfur Dioxide and Tetra-n-butyl Ammonium Bromide[J]. SPECTROSCOPY LETTERS,2015,48(7):499-505.
APA	Chen, Chao,Li, Xiaosen,Chen, Zhaoyang,Yan, Kefeng,Zhang, Yu,&Xu, Chungang.(2015).Raman Spectroscopic Analysis on the Hydrate Formed in the Hydrate-Based Flue Gas Separation Process in Presence of Sulfur Dioxide and Tetra-n-butyl Ammonium Bromide.SPECTROSCOPY LETTERS,48(7),499-505.
MLA	Chen, Chao,et al."Raman Spectroscopic Analysis on the Hydrate Formed in the Hydrate-Based Flue Gas Separation Process in Presence of Sulfur Dioxide and Tetra-n-butyl Ammonium Bromide".SPECTROSCOPY LETTERS 48.7(2015):499-505.