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Gas-Liquid Mass-Transfer Properties in CO2 Absorption System with Ionic Liquids
Alternative TitleAiche J.
Zhang, Xin1; Bao, Di; Huang, Ying; Dong, Haifeng; Zhang, Xiangping; Zhang, Suojiang
2014-08-01
Source PublicationAICHE JOURNAL
ISSN0001-1541
Volume60Issue:8Pages:2929-2939
AbstractThe deficiency of mass-transfer properties in ionic liquids (ILs) has become a bottleneck in developing the novel IL-based CO2 capture processes. In this study, the liquid-side mass-transfer coefficients (k(L)) were measured systematically in a stirred cell reactor by the decreasing pressure method at temperatures ranging from 303 to 323 K and over a wide range of IL concentrations from 0 to 100 wt %. Based on the data of kL, the kinetics of chemical absorption of CO2 with mixed solvents containing 30 wt % monoethanolamine (MEA) and 0-70 wt % ILs were investigated. The k(L) in IL systems is influenced not only by the viscosity but also the molecular structures of ILs. The enhancement factors and the reaction activation energy were quantified. Considering both the mass-transfer rates and the stability of IL in CO2 absorption system, the new IL-based system MEA + [bmim][NO3] + H2O is recommended. (C) 2014 American Institute of Chemical Engineers; The deficiency of mass-transfer properties in ionic liquids (ILs) has become a bottleneck in developing the novel IL-based CO2 capture processes. In this study, the liquid-side mass-transfer coefficients (k(L)) were measured systematically in a stirred cell reactor by the decreasing pressure method at temperatures ranging from 303 to 323 K and over a wide range of IL concentrations from 0 to 100 wt %. Based on the data of kL, the kinetics of chemical absorption of CO2 with mixed solvents containing 30 wt % monoethanolamine (MEA) and 0-70 wt % ILs were investigated. The k(L) in IL systems is influenced not only by the viscosity but also the molecular structures of ILs. The enhancement factors and the reaction activation energy were quantified. Considering both the mass-transfer rates and the stability of IL in CO2 absorption system, the new IL-based system MEA + [bmim][NO3] + H2O is recommended. (C) 2014 American Institute of Chemical Engineers
KeywordIonic Liquids Carbon Dioxide Mass-transfer Coefficient Kinetics Absorption
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/aic.14507
URL查看原文
Indexed BySCI
Language英语
WOS KeywordCARBON-DIOXIDE ABSORPTION ; AQUEOUS MONOETHANOLAMINE SOLUTIONS ; TRANSFER COEFFICIENT ; N-METHYLDIETHANOLAMINE ; BUBBLE BEHAVIOR ; KINETICS ; CAPTURE ; SOLUBILITY ; DIFFUSIVITY ; WATER
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000339256100019
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11039
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst,Beijing Key, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xin,Bao, Di,Huang, Ying,et al. Gas-Liquid Mass-Transfer Properties in CO2 Absorption System with Ionic Liquids[J]. AICHE JOURNAL,2014,60(8):2929-2939.
APA Zhang, Xin,Bao, Di,Huang, Ying,Dong, Haifeng,Zhang, Xiangping,&Zhang, Suojiang.(2014).Gas-Liquid Mass-Transfer Properties in CO2 Absorption System with Ionic Liquids.AICHE JOURNAL,60(8),2929-2939.
MLA Zhang, Xin,et al."Gas-Liquid Mass-Transfer Properties in CO2 Absorption System with Ionic Liquids".AICHE JOURNAL 60.8(2014):2929-2939.
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