多活性位点季鏻盐型功能化离子液体的二氧化碳捕集行为
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摘要
采用两步法合成了三种季鏻盐型功能化离子液体[a P4443][AA]([AA]=[Triz]、[2-Op]、[2-Np]),考察了温度、CO_2浓度和烟气组分(水分、氧气)对离子液体吸收CO_2性能的影响。结果表明,在30℃、常压条件下,三种离子液体都具有较高的CO_2捕集能力,[a P4443][Triz]、[a P4443][2-Op]和[a P4443][2-Np]对纯CO_2的吸收量分别为1. 32,1. 57,1. 88 mol CO_2/mol ILs。温度升高和CO_2浓度降低均不利于CO_2吸收;烟气其他组分影响离子液体对CO_2的吸收性能,9%H2O/CO_2,5%O2/CO_2和9%H2O/5%O2/CO_2时,CO_2的饱和吸收量比纯CO_2分别降低了10. 2%,2. 5%和16. 7%。
Three kinds of quaternary phosphonium ionic liquids[aP4443][AA],( [AA] = [Triz],[2-Op],[2-Np]) have been synthesized via a two-step method. The effect of temperature,CO_2 concentration,and components of flue gas( H2 O and O2) on the solubility of CO_2 is studied. The results show that three kinds of ionic liquids have high CO_2 capture capabilities and the saturated absorption capacity of pure CO_2 were 1. 32,1. 57,1. 88 mol CO_2/mol ILs at 30 ℃ under 101. 325 kPa,respectively. The CO_2 capture capacity dropped with the temperature increased and CO_2 concentration decreased. Other components of flue gas is not conducive to the CO_2 absorption. The CO_2 absorption capacity dropped10. 2%,2. 5% and 16. 7%,when 9% H2 O/CO_2,5% O2/CO_2,and 9% H2 O/5% O2/CO_2 used during the absorption.
Three kinds of quaternary phosphonium ionic liquids[aP4443][AA],( [AA] = [Triz],[2-Op],[2-Np]) have been synthesized via a two-step method. The effect of temperature,CO_2 concentration,and components of flue gas( H2 O and O2) on the solubility of CO_2 is studied. The results show that three kinds of ionic liquids have high CO_2 capture capabilities and the saturated absorption capacity of pure CO_2 were 1. 32,1. 57,1. 88 mol CO_2/mol ILs at 30 ℃ under 101. 325 kPa,respectively. The CO_2 capture capacity dropped with the temperature increased and CO_2 concentration decreased. Other components of flue gas is not conducive to the CO_2 absorption. The CO_2 absorption capacity dropped10. 2%,2. 5% and 16. 7%,when 9% H2 O/CO_2,5% O2/CO_2,and 9% H2 O/5% O2/CO_2 used during the absorption.
引文
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[3] Ren J,Wu L,Li B G. Preparation and CO2sorption/desorption of N-(3-aminopropyl)aminoethyl tributylphosphonium amino acid salt ionic liquids supported into porous silica particles[J]. Industrial&Engineering Chemistry Research,2012,51(23):7901-7909.
[4] Choi Y S,Im J,Jeong J K,et al. CO2absorption and desorption in an aqueous solution of heavily hindered alkanolamine:structural elucidation of CO2-containing species[J]. Environmental Science&Technology,2014,48(7):4163-4170.
[5] Lv B,Jing G,Qian Y,et al. An efficient absorbent of amine-based amino acid-functionalized ionic liquids for CO2capture:High capacity and regeneration ability[J].Chemical Engineering Journal,2016,289:212-218.
[6] Hu P,Zhang R,Liu Z,et al. Absorption performance and mechanism of CO2in aqueous solutions of amine-based ionic liquids[J]. Energy&Fuels,2015,29(9):6019-6024.
[7] Zhang Y,Zhang S,Lu X,et al. Dual amino-functionalised phosphonium ionic liquids for CO2capture[J]. Chemistry A European Journal,2010,15(12):3003-3011.
[8] Wang C,Luo H,Jiang D E,et al. Carbon dioxide capture by superbase-derived protic ionic liquids[J]. Angewandte Chemie,2010,49(34):5978-5981.
[9] Yue M B,Sun L B,Cao Y,et al. Efficient CO2capturer derived from as-synthesized MCM-41 modified with amine[J]. Chemistry(Weinheim an der Bergstrasse,Germany),2008,14(11):3442-3451.
[10] Khan A A,Halder G N,Saha A K. Experimental investigation of sorption characteristics of capturing carbon dioxide into piperazine activated aqueous 2-amino-2-methyl-1-propanol solution in a packed column[J]. International Journal of Greenhouse Gas Control,2016(44):217-226.
[11]任树行.功能化离子液体的定向制备及用于吸收燃煤烟气中SO2和CO2的研究[D].北京:北京化工大学,2012.
[12] Ciftja A F,Hartono A,Svendsen H F.13C NMR as a method species determination in CO2absorbent systems[J].International Journal of Greenhouse Gas Control,2013(16):224-232.
[13]王吉苹,吝涛,李青松,等.强碱性阴离子交换树脂去除水中硝氮的动力学研究[J].水生态学杂志,2016,37(1):16-23.
[14]罗小燕.阴离子功能化离子液体的合成及其应用于二氧化碳气体捕集的研究[D].杭州:浙江大学,2014.
[15] Zhai Y,Chuang S S C. The nature of adsorbed carbon dioxide on immobilized amines during carbon dioxide capture from air and simulated flue gas[J]. Energy Technology,2017,12(5):1-11.
[16] Wan M M,Zhu H Y,Li Y Y,et al. Novel CO2-capture derived from the basic ionic liquids orientated on mesoporous materials[J]. Acs Applied Materials&Interfaces,2014,6(15):12947-12955.
[17]朱明华,胡坪.仪器分析[M]. 4版.北京:高等教育出版社,2008.
[18]高丽霞,余江. Schiff碱式双功能离子液体的制备与表征[J].高等学校化学学报,2013,34(1):108-114.
[19]方永勤,孙德鑫. 2-氨基-5-溴吡啶的合成[J].精细石油化工,2010,27(4):4-6.
[20]吴芹,董斌琦,韩明汉,等.新型BrФnsted酸性离子液体的合成与表征[J].光谱学与光谱分析,2007,27(10):2027-2031.
[21]朱少萍,冯玉英,乐传俊,等. 2-羟基-1-萘醛缩2-氨基-4-甲基吡啶的合成及其热色性研究[J].化工新型材料,2010,38(11):81-82.
[22]商晓敏.功能化离子液体的合成及对CO2的吸收应用[D].新乡:河南师范大学,2014.
[23] Hu H,Li F,Xia Q,et al. Research on influencing factors and mechanism of CO2absorption by poly-amino-based ionic liquids[J]. International Journal of Greenhouse Gas Control,2014(31):33-40.
[24] Li S,Zhao C,Sun C,et al. Reaction mechanism and kinetics study of CO2absorption into[C2OHmim][Lys][J].Energy&Fuels,2016,30(10):8535-8544.
[25] Zhang Z,Wu L,Dong J,et al. Preparation and SO2sorption/desorption behavior of an ionic liquid supported on porous silica particles[J]. Industrial&Engineering Chemistry Research,2009,48(4):2142-2148.
[26] Zhao W,He G,Zhang L,et al. Effect of water in ionic liquid on the separation performance of supported ionic liquid membrane for CO2/N2[J]. Journal of Membrane Science,2010,350(1/2):279-285.
[27] Srikanth C S,Chuang S S C. Infrared study of strongly and weakly adsorbed CO2on fresh and oxidatively degraded amine sorbents[J]. Journal of Physical Chemistry C,2013,117(117):9196-9205.