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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, Chao1,2,3; Li, Xiaosen1,2; Chen, Zhaoyang1,2; Yan, Kefeng1,2; Zhang, Yu1,2; Xu, Chungang1,2
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
DOI10.1080/00387010.2014.909854
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:1[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
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.
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