功能化离子液体的合成及对CO_2的吸收
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摘要
以1-氨丙基-3-甲基咪唑溴盐和甘氨酸为原料,采用两步法合成了一种新型功能性离子液体1-氨丙基-3-甲基咪唑甘氨酸盐([APMim][Gly]),考察对CO_2的吸收性能。采用傅里叶变换红外光谱(FTIR)、热重分析(TG)等进行表征,分析其结构及热稳定性。与N-甲基二乙醇胺(MDEA)溶液对比,研究了压力为1 MPa,不同质量分数的[APMim][Gly]在不同温度下对CO_2的吸收能力,并进行多次循环再生,探讨该离子液体[IL]的循环稳定性。结果表明:在30℃时,质量分数为20%的[APMim][Gly]溶液具有最佳的吸收能力,对CO_2的吸收量可达1.32 mol/mol,远高于MDEA溶液。该离子液体具有良好的再生能力,经过6次循环其吸收率仍高达92.4%。
A new functional ionic liquid 1-aminopropyl-3-methylimidazolium glycinate([APMim][Gly]) was synthesized by a two-step method using 1-aminopropyl-3-methylimidazolium bromide and glycine as raw materials to investigate the absorption of CO_2. Fourier transform infrared spectroscopy(FTIR) and thermogravimetric analysis(TG) were used to characterize its structure and thermal stability. Compared with N-methyldiethanolamine(MDEA) solution, the CO_2 absorption capacity of different mass fractions [APMim][Gly] was studied at different temperatures and pressures of 1 MPa. The cyclic stability of the ionic liquid was investigated by multiple regenerations. The results show that [APMim][Gly] solution with 20% mass fraction has the best absorption capacity at 30 ℃, and the absorption amount of CO_2 can reach 1.32 mol/mol, which is much higher than that of MDEA solution. Besides, the ionic liquid owns good regeneration ability, and its absorption rate is still as high as 92.4% after 6 cycles.
A new functional ionic liquid 1-aminopropyl-3-methylimidazolium glycinate([APMim][Gly]) was synthesized by a two-step method using 1-aminopropyl-3-methylimidazolium bromide and glycine as raw materials to investigate the absorption of CO_2. Fourier transform infrared spectroscopy(FTIR) and thermogravimetric analysis(TG) were used to characterize its structure and thermal stability. Compared with N-methyldiethanolamine(MDEA) solution, the CO_2 absorption capacity of different mass fractions [APMim][Gly] was studied at different temperatures and pressures of 1 MPa. The cyclic stability of the ionic liquid was investigated by multiple regenerations. The results show that [APMim][Gly] solution with 20% mass fraction has the best absorption capacity at 30 ℃, and the absorption amount of CO_2 can reach 1.32 mol/mol, which is much higher than that of MDEA solution. Besides, the ionic liquid owns good regeneration ability, and its absorption rate is still as high as 92.4% after 6 cycles.
引文
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[20] 杨翠莲, 李松, 毕崟,等. 1-氨丙基-3-甲基咪唑溴盐水溶液对CO2的吸收特性[J]. 石油化工, 2014, 43(12):1433-1438.
[2] LIU Shouheng, SIE Wunhu. CO2Capture on mesocellular silica foam supported amino acid-functionalized lonic li-quids[J]. Water Air & Soil Pollution, 2016, 227(8):263.
[3] LU Xiaohua, JI Yuanhui, FENG Xin, et al. Methodology of non-equilibrium thermodynamics for kinetics research of CO2, capture by ionic liquids[J]. Science China Chemistry, 2012, 55(6):1079-1091.
[4] LEI Xinxin, XU Yingjie, ZHU Lili, et al. Highly efficient and reversible CO2 capture through 1,1,3,3-tetramethylguanidinium imidazole ionic liquid[J]. Rsc Advances, 2014, 4(14):7052-7057.
[5] CUI Guokai, WANG Jianji, ZHANG Suojiang. Active chemisorption sites in functionalized ionic liquids for carbon capture[J]. Chemical Society Reviews, 2016, 45(15):4307.
[6] AKILA E, PUGALENDHI S, BOOPATHI G. Biogas purification using coconut shell based granular activated carbon by pressure swing adsorption[J]. InternationalJournalofCurrentMicrobiologyandApplied Sciences,2017,6(4):1178-1183.
[7] ZULFIQAR S, SARWAR M I, MECERREYES D. Polymeric ionic liquids for CO2 capture and separation: Potential, progress and challenges[J]. Polymer Chemistry, 2015, 6(36):6435-6451.
[8] VAFAEEZADEH M, ABOUDI J, HASHEMI M M. A novel phenolic ionic liquid for 1.5 molar CO2 capture: combined experimental and DFT studies[J]. Rsc Advances, 2015, 71(5):58005-58009.
[9] ESLAMI H, HASHEMI H, FALLAHZADEH R A, et al. Effect of organic loading rates on biogas production and anaerobic biodegradation of composting leachate in the anaerobic series bioreactors[J]. Ecological Engineering, 2018, 110:165-171.
[10] PORPATHAM E, RAMESH A, NAGALINGAM B. Experimental studies on the effects of enhancing the concentration of oxygen in the inducted charge of a biogas fueled spark ignition engine[J]. Energy, 2018,142(C):303-312.
[11] 张文林, 陈瑶, 高展艳,等. 功能化碱性离子液体在吸收CO2领域的研究进展[J]. 现代化工, 2017(2):41-45.
[12] QIAN Wenjing, TEXTER J, YAN Feng. Frontiers in poly(ionic liquid)s: syntheses and applications[J]. Chemical Society Reviews, 2017, 46(4):1124.
[13] ZULFIQAR S, SARWAR M I, MECERREYES D. Polymeric ionic liquids for CO2 capture and separation:Potential,progressand challenges[J]. Polymer Chemistry, 2015, 6(36):6435-6451.
[14] 徐凡, 高思春. 离子型溶剂([Bmim]C1+MEA+H2O)密度、黏度测定及吸收CO2性能研究[J]. 河南化工, 2015(10):29-34.
[15] 赵毅, 李蔷薇, 汪黎东,等. 常温常压下离子液体[NH2p-mim]Br吸收CO2的实验研究[J]. 动力工程学报, 2014, 34(11):878-883.
[16] 方诚刚. 氨基酸离子液体-MDEA混合水溶液对CO2的吸收研究[D]. 南京:南京大学, 2011.
[17] 吴永良, 焦真, 王冠楠,等. 用于CO2吸收的离子液体的合成、表征及吸收性能[J]. 精细化工, 2007, 24(4):324-327.
[18] 孙丽伟, 骆静宜, 唐韶坤. 双功能离子液体的合成及二氧化碳捕集性能[J]. 高等学校化学学报, 2017, 38(9):1578-1583.
[19] BATES E D, MAYTON R D, NTAI I, et al. CO2 capture by a task-specific ionic liquid[J]. Journal of the American Chemical Society, 2002, 124(6):926.
[20] 杨翠莲, 李松, 毕崟,等. 1-氨丙基-3-甲基咪唑溴盐水溶液对CO2的吸收特性[J]. 石油化工, 2014, 43(12):1433-1438.