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Studies on the physical properties variations of protic ionic liquid during NH3 absorption
Yang, Bingbing1,2; Shang, Dawei1; Tu, Wenhui1,2; Zeng, Shaojuan1; Bai, Lu1; Wang, Hong3; Zhang, Xiangping1,2
2019-12-15
Source PublicationJOURNAL OF MOLECULAR LIQUIDS
ISSN0167-7322
Volume296Pages:7
AbstractUsing protic ionic liquids (PILs) to treat ammonia (NH3)-containing exhausted gases is a potential method to mitigate the air pollution and realize the ammonia recovery in industries. In order to design a new process to absorb and recover NH3, the understanding of variations in physical properties of PILs during NH3 absorption is important for process design. In this work, the density and viscosity variations of PIL of 1 -butylimidazolium bis(trifluoromethylsulfonyl)imide ([Bim][NTf2]) with different NH3 concentrations were measured. The results showed that the density of [Bim][NTf2]-NH3 system decreased linearly as NH3 concentrations increased, while the viscosity exhibited a turning trend, i.e., the viscosity first increased about 15 % and then decreased sharply to a lower value. It is confirmed by the NMR spectra of d-[Bim][NTf2] (the proton was replaced with deuterium) that the hydrogen bond interaction exists in NH3 and the imidazole ring. Quantum chemistry calculations further indicated that properties variations of the PIL during NH3 absorption come from the changes of ionic interaction between the cation and anion and hydrogen bonding between PIL and NH3. (C) 2019 Elsevier B.V. All rights reserved.
KeywordProtic ionic liquid NH3 absorption Density variation Viscosity variation
DOI10.1016/j.molliq.2019.111791
Language英语
WOS KeywordTRANSPORT-PROPERTIES ; HIGHLY EFFICIENT ; CO2 ABSORPTION ; CARBON-DIOXIDE ; AMMONIA ; TEMPERATURE ; WATER ; SO2 ; SPECTROSCOPY ; SOLUBILITY
Funding ProjectKey Program of National Natural Science Foundation of China[21838010] ; National Natural Science Foundation of China[21978306] ; National Natural Science Foundation of China[21425625] ; Beijing Municipal Natural Science Foundation[2182071] ; State Key Laboratory of Separation Membranes and Membrane Processes (Tianjin Polytechnic University)[M2-201808]
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
Funding OrganizationKey Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Municipal Natural Science Foundation ; State Key Laboratory of Separation Membranes and Membrane Processes (Tianjin Polytechnic University)
WOS IDWOS:000506712600014
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38718
Collection中国科学院过程工程研究所
Corresponding AuthorBai, Lu; Zhang, Xiangping
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc,Inst Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China
Recommended Citation
GB/T 7714
Yang, Bingbing,Shang, Dawei,Tu, Wenhui,et al. Studies on the physical properties variations of protic ionic liquid during NH3 absorption[J]. JOURNAL OF MOLECULAR LIQUIDS,2019,296:7.
APA Yang, Bingbing.,Shang, Dawei.,Tu, Wenhui.,Zeng, Shaojuan.,Bai, Lu.,...&Zhang, Xiangping.(2019).Studies on the physical properties variations of protic ionic liquid during NH3 absorption.JOURNAL OF MOLECULAR LIQUIDS,296,7.
MLA Yang, Bingbing,et al."Studies on the physical properties variations of protic ionic liquid during NH3 absorption".JOURNAL OF MOLECULAR LIQUIDS 296(2019):7.
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