CAS OpenIR
Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles
Wang, Xue1,2; Shang, Dawei1; Zeng, Shaojuan1; Wang, Yuanming2; Zhang, Xiaochun1; Zhang, Xiangping1; Liu, Jindun2
2019
Source PublicationJOURNAL OF CHEMICAL THERMODYNAMICS
ISSN0021-9614
Volume128Pages:415-423
AbstractAbsorption and adsorption technology as widely used methods have been reported for carbon dioxide (CO2) separation. In order to combine the advantages of absorption and adsorption methods, ionic liquids (ILs) as absorption function and zeolitic imidazolate framework-8 (ZIF-8) as adsorption function were integrated into a slurry to efficiently capture CO2 by the absorption-adsorption method. In this study, two pyridinium-based ILs, [C4Py][NTf2] and [C4Py][N(CN)(2)] were synthesized, and mixed with different concentration of ZIF-8 to form hybrid slurries. CO2 solubility in the different hybrid slurries at temperatures from 303.15 to 333.15 K was measured. The results indicated that CO2 solubility increases significantly with increasing pressure and decreases with increasing temperature. Moreover, CO2 solubility increases with the increase of ZIF-8 content, indicating that the addition of ZIF-8 into ILs can obviously enhance CO2 solubility. CO2 solubility in the ZIF-8/[C4Py][NTf2] slurry increases by 24% compared with the corresponding pure IL at 303.15 K and 1.80 MPa. The absorption-adsorption mechanism was studied using FT-IR and NMR spectroscopy. It was demonstrated that CO2 absorption and adsorption in the ZIF-8/ILs hybrid slurries is a physical process. Furthermore, the ZIF-8/[C4Py][NTf2] slurry can also keep the stable absorption performance after five consecutive absorption and desorption cycles. Considering the excellent capacity, thermal stability and recyclability, the porous materials/ILs slurry will provide new insight to CO2 capture compared with the conventional absorbents. (C) 2018 Elsevier Ltd.
KeywordIonic liquids CO2 Absorption Adsorption
DOI10.1016/j.jct.2018.08.038
Language英语
WOS KeywordZEOLITIC IMIDAZOLATE FRAMEWORKS ; METAL-ORGANIC FRAMEWORKS ; CARBON-DIOXIDE ; PHYSICAL-PROPERTIES ; SOLUBILITY ; ABSORPTION ; EFFICIENT ; MIXTURES ; SLURRY ; TETRAFLUOROBORATE
Funding ProjectNational Key R&D Program of China[2017YFB0603301] ; National Natural Science Foundation of China[21425625] ; National Natural Science Foundation of China[U1662122] ; National Natural Science Foundation of China[21506219] ; National Natural Science Foundation of China[51674234] ; Beijing hundreds of leading talents training project of science and technology[Z171100001117154]
WOS Research AreaThermodynamics ; Chemistry
WOS SubjectThermodynamics ; Chemistry, Physical
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Beijing hundreds of leading talents training project of science and technology
WOS IDWOS:000446481000045
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26303
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, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Henan, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xue,Shang, Dawei,Zeng, Shaojuan,et al. Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2019,128:415-423.
APA Wang, Xue.,Shang, Dawei.,Zeng, Shaojuan.,Wang, Yuanming.,Zhang, Xiaochun.,...&Liu, Jindun.(2019).Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles.JOURNAL OF CHEMICAL THERMODYNAMICS,128,415-423.
MLA Wang, Xue,et al."Enhanced CO2 capture by binary systems of pyridinium-based ionic liquids and porous ZIF-8 particles".JOURNAL OF CHEMICAL THERMODYNAMICS 128(2019):415-423.
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