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Novel Ether-Functionalized Pyridinium Chloride Ionic Liquids for Efficient SO2 Capture
Alternative TitleInd. Eng. Chem. Res.
Wang, Jian1,2; Zeng, Shaojuan1,2; Bai, Lu1,2; Gao, Hongshuai1; Zhang, Xiangping1; Zhang, Suojiang1
2014-10-29
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume53Issue:43Pages:16832-16839
AbstractSulfur dioxide (SO2) emitted from the combustion of fossil flues is a major atmospheric pollutant that seriously threatens the environment and human health. The traditional methods for the removal and recovery of SO2 are irreversible and can result in secondary pollution or suffer from solvent loss. Therefore, it is urgent to explore new absorbents for the reversible, efficient, and environment-friendly capture of SO2. Ionic liquids (ILs) exhibit excellent performance for SO2 capture because of their unique physicochemical properties. To improve the absorption capacities of ILs for SO2, a series of novel ether-functionalized pyridinium chloride ILs ([EnPy]Cl, n = 24) were designed and synthesized. The physiochemical properties of these ILs and their SO2 absorption performance under different conditions were investigated. In addition, the SO2/CO2 selectivities and reusabilities of the ILs and the absorption mechanism between SO2 and [EnPy]Cl (n = 24) were studied. It was found that 1-[2-(2-methoxyethoxy)ethyl] pyridinium chloride showed a relatively high absorption capacity of up to 1.155 (g of SO2).(g of IL)(-1) at 20 degrees C and 0.1 MPa. The SO2 absorption capacities of the studied ILs remained steady in absorptiondesorption cycles, implying that [EnPy]Cl (n = 24) could be promising candidates for SO2 capture.; Sulfur dioxide (SO2) emitted from the combustion of fossil flues is a major atmospheric pollutant that seriously threatens the environment and human health. The traditional methods for the removal and recovery of SO2 are irreversible and can result in secondary pollution or suffer from solvent loss. Therefore, it is urgent to explore new absorbents for the reversible, efficient, and environment-friendly capture of SO2. Ionic liquids (ILs) exhibit excellent performance for SO2 capture because of their unique physicochemical properties. To improve the absorption capacities of ILs for SO2, a series of novel ether-functionalized pyridinium chloride ILs ([EnPy]Cl, n = 24) were designed and synthesized. The physiochemical properties of these ILs and their SO2 absorption performance under different conditions were investigated. In addition, the SO2/CO2 selectivities and reusabilities of the ILs and the absorption mechanism between SO2 and [EnPy]Cl (n = 24) were studied. It was found that 1-[2-(2-methoxyethoxy)ethyl] pyridinium chloride showed a relatively high absorption capacity of up to 1.155 (g of SO2).(g of IL)(-1) at 20 degrees C and 0.1 MPa. The SO2 absorption capacities of the studied ILs remained steady in absorptiondesorption cycles, implying that [EnPy]Cl (n = 24) could be promising candidates for SO2 capture.
KeywordSulfur-dioxide Emissions Highly Efficient Co2 Capture Flue-gas Absorption Solubility Anion Imidazolium Viscosity Ammonium
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie5027265
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSULFUR-DIOXIDE EMISSIONS ; HIGHLY EFFICIENT ; CO2 CAPTURE ; FLUE-GAS ; ABSORPTION ; SOLUBILITY ; ANION ; IMIDAZOLIUM ; VISCOSITY ; AMMONIUM
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000344042700026
Citation statistics
Cited Times:55[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11838
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Key Lab Green Proc & Engn,Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jian,Zeng, Shaojuan,Bai, Lu,et al. Novel Ether-Functionalized Pyridinium Chloride Ionic Liquids for Efficient SO2 Capture[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2014,53(43):16832-16839.
APA Wang, Jian,Zeng, Shaojuan,Bai, Lu,Gao, Hongshuai,Zhang, Xiangping,&Zhang, Suojiang.(2014).Novel Ether-Functionalized Pyridinium Chloride Ionic Liquids for Efficient SO2 Capture.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,53(43),16832-16839.
MLA Wang, Jian,et al."Novel Ether-Functionalized Pyridinium Chloride Ionic Liquids for Efficient SO2 Capture".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 53.43(2014):16832-16839.
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