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Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide
Li, Fangfang1,2; Bai, Yinge1; Zeng, Shaojuan1; Liang, Xiaodong3; Wang, Hui1; Huo, Feng1; Zhang, Xiangping1,2
2019-11-01
Source PublicationINTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
ISSN1750-5836
Volume90Pages:8
AbstractProtic ionic liquids (PILs) are considered as potential solvents for CO2 capture due to their simple synthetic routes and unique properties. In this work, three low viscous PILs, tetramethylgunidinium imidazole ([TMGH] [Im]), tetramethylgunidinium pyrrole ([TMGH][Pyrr]) and tetramethylgunidinium phenol ([TMGH][PhO]) were synthesized and the effect of anions, temperature, CO2 partial pressure and water content on CO2 absorption performance of PILs was also systematically studied. It was found that the PILs with larger basicity show higher CO2 absorption capacity, and [TMGH][Im] simultaneously shows relatively high absorption rate and CO2 absorption capacity of 0.154 g CO2/g IL at 40 degrees C, 1 bar. The addition of H2O has a positive effect on gravimetric absorption capacity of CO2 at the range of 0-20 wt% H2O, and the highest capacity of 0.186 g CO2/g IL was achieved as the water content was 7 wt%. In situ FTIR, C-13 NMR and theoretical calculations verified that more stable bicarbonate are produced during CO2 absorption by [TMGH][Im]-H2O system. However, neat [TMGH] [Im] can react with CO2 to form the reversible carbamate, leading to excellent recyclability after four absorption-desorption cycles. The results implied that neat [TMGH][Im] shows great potentials in CO2 absorption applications.
KeywordIonic liquids Protic Low viscosity CO2 absorption Mechanisms
DOI10.1016/j.ijggc.2019.102801
Language英语
WOS KeywordCO2 CAPTURE ; HIGHLY EFFICIENT ; SO2 ; ABSORPTION ; SOLVATION ; SOLVENTS ; TECHNOLOGIES ; EQUILIBRIA ; ABSORBENTS ; ACIDITIES
Funding ProjectNational Key Research and Development Program of China[2017YFB0603301] ; National Natural Science Foundation of China[21838010] ; National Natural Science Foundation of China[21425625] ; National Natural Science Foundation of China[21890764] ; Beijing Municipal Natural Science Foundation[2182071] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-JSC011]
WOS Research AreaScience & Technology - Other Topics ; Energy & Fuels ; Engineering
WOS SubjectGreen & Sustainable Science & Technology ; Energy & Fuels ; Engineering, Environmental
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Beijing Municipal Natural Science Foundation ; Key Research Program of Frontier Sciences, CAS
WOS IDWOS:000495026000007
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38972
Collection中国科学院过程工程研究所
Corresponding AuthorZeng, Shaojuan; Zhang, Xiangping
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn,State Key Lab Multiphas, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China
3.Tech Univ Denmark, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark
Recommended Citation
GB/T 7714
Li, Fangfang,Bai, Yinge,Zeng, Shaojuan,et al. Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide[J]. INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL,2019,90:8.
APA Li, Fangfang.,Bai, Yinge.,Zeng, Shaojuan.,Liang, Xiaodong.,Wang, Hui.,...&Zhang, Xiangping.(2019).Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide.INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL,90,8.
MLA Li, Fangfang,et al."Protic ionic liquids with low viscosity for efficient and reversible capture of carbon dioxide".INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL 90(2019):8.
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