N,N-二甲基正辛胺/十六烷混合体系液液相变吸收SO2

doi:10.6023/A19070279

摘要/Abstract

为了克服传统脱硫工艺胺法脱硫中挥发的吸收剂污染空气以及吸收剂回收过程能耗巨大的缺点，开发了一种新型液液相变有机胺混合脱硫体系.将碱性较大的吸收剂N，N-二甲基正辛胺（DMOA）与沸点较高的溶剂十六烷混合形成均相溶液.其在吸收二氧化硫（SO₂）后自动分为两相，十六烷在上相，SO₂与DMOA反应的产物位于下相.上相十六烷可以直接进行循环利用，将下相溶液中的SO₂脱除即可实现DMOA再生.经核磁共振氢谱（¹H NMR）和傅里叶红外光谱（FTIR）表征发现，SO₂和DMOA的反应产物为电子转移产物.在压力为常压、温度为20℃的条件下，混合体系最多的摩尔吸收量为2.1 mol/mol，是同等条件下混合体系CO₂摩尔吸收量的38倍.该混合体系具有良好的循环吸收性能，在常压、120℃的条件下进行解吸操作基本可以完全循环再生DMOA.这些结果表明该混合体系用于吸收SO₂具有良好的前景.

关键词: SO₂吸收, 相变, 有机胺

A novel liquid-liquid phase-change organic amine mixed absorbent for the removal of sulfur dioxide (SO₂) was developed. This absorbent could surmount the shortcomings that the atmosphere is contaminated by volatile organic solvents and a lot of energy is consumed in the process of recovering solvent in the traditional flue gas desulfurization process. The homogeneous absorption solution consists of stronger alkaline N,N-dimethyl-n-octylamine (DMOA) as absorbent and high-boiling hexadecane as a solvent, because hexadecane is the best one among various kinds of solvents tested. The solution would be automatically separated into two immiscible phases after introducing SO₂ and setting. Hexadecane was in the upper phase and the absorption product of SO₂ and DMOA was in the lower phase after absorption. The former could be directly recycled, and the latter could be recovered by removing SO₂ from the lower phase. The absorption product was proved to be a charge-transfer complex by ¹H nuclear magnetic resonance (¹H NMR) and Fourier transform infrared spectroscopy (FTIR). Subsequently, the effects of temperature, concentration and SO₂ partial pressure on absorption capacity and cycle absorption performance were studied. The absorption capacity was determined by passing SO₂ through the solution in gas bottle and weighing the system including the bottle and the solution. The desorption capacity was determined by passing N₂ through the solution absorbed SO₂, and then the content of each component in different phases was determined by gas chromatography using internal standard method. It was found that the mole absorption capacity was 2.1 mol SO₂/mol DMOA under the condition of 1.013×10⁵ Pa and 20℃, which was 38 times as much as the absorption capacity of carbon dioxide (CO₂). The absorbent revealed the good cycle absorption performance in the experiment, and the DMOA could be completely regenerated under 1.013×10⁵ Pa and 120℃. All the results showed that the mixed absorbent has good prospects for SO₂ capture.

Key words: SO₂ capture, phase-change, amines

引用此文

李雪霏, 陈玲, 许胜超, 赵文波. N,N-二甲基正辛胺/十六烷混合体系液液相变吸收SO₂[J]. 化学学报, 2019, 77(12): 1287-1293.

Li Xuefei, Chen Ling, Xu Shengchao, Zhao Wenbo. Liquid-liquid Phase-change Absorption of SO₂ Using N,N-Dimethyl-n-octylamine Mixed with Hexadecane[J]. Acta Chimica Sinica, 2019, 77(12): 1287-1293.

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参考文献

[1] Gholizadeh, F.; Kamgar, A.; Roostaei, M.; Rahimpour, M. R. J. Mol. Liq. 2018, 272, 878.
[2] Zhao, T. X.; Li, Y. F.; Zhang, Y. T.; Wu, Y. T.; Hu, X. B. ACS Sustainable Chem. Eng. 2018, 6, 10886.
[3] Wu, W. Z.; Han, B. X.; Gao, H. X.;Liu, Z. M.; Jiang, T.; Huang, J. Angew. Chem. 2010, 43, 2415.
[4] Hansen, B. B.; Kiil, S.; Johnsson, J. E.; Sønder, K. B. Ind. Eng. Chem. Res. 2008, 47, 88.
[5] Ma, X. X.; Takao, K.; Kaneko, T.;Tashimo, T.; Yoshida, T.; Kato, K. Chem. Eng. Sci. 2000, 55, 4643.
[6] Hong, S. Y.; Kim, H.; Kim, Y. J.; Jeong, J.; Cheong, M.; Lee, H.; Kim, H. S.; Lee, J. S. J. Hazard. Mater. 2014, 264, 136.
[7] Srivastava, R. K.; Jozewicz, W.; Singer, C. Environ. Prog. Sustainable Energy. 2010, 20, 219.
[8] Lei, Z. G.; Chen, B. H.; Koo, Y. M.; MacFarlane, D. R. Chem. Rev. 2017, 117, 6633.
[9] Liu, B. Y.; Zhang, P. W. Chin. J. Org. Chem. 2018, 38, 3176. (刘宝友, 张佩文, 有机化学, 2018, 38, 3176.)
[10] Huang, K.; Lu, J. F.; Wu, Y. T.; Hu, X. B.; Zhang, Z. B. Chem. Eng. J. 2013, 215, 36.
[11] Xu, Z. C.; Wang, S. J.; Chen, C. H. Int. J. Greenhouse Gas Control. 2013, 16, 107.
[12] Zhang, W. D.; Jin, X. H.; Tu, W. W.; Ma, Q.; Mao, M. L.; Cui, C. H. Appl. Energy. 2017, 195, 316.
[13] Luo, W. L.; Guo, D. F.; Zheng, J. H.; Gao, S. W.; Chen, J. Int. J. Greenhouse Gas Control. 2016, 53, 141.
[14] Barzagli, F.; Mani, F.; Peruzzini, M. Int. J. Greenhouse Gas Control. 2017, 60, 100.
[15] Li, Y. N.; Cheng, J.; Hu, L. Q.; Liu, J. Z.; Zhou, J. H.; Cen, K. F. Fuel. 2018, 216, 418.
[16] Shen, S. F.; Bian, Y. Y.; Zhao, Y. Int. J. Greenhouse Gas Control. 2017, 56, 1.
[17] Wang, Y.; Zhao, W. B.; Chai, M.Y.; Li, G. M.; Jia, Q. M.; Chen, Y. Energ. Fuel. 2017, 31, 13999.
[18] Zhao, W. B.; Zhao, Q.; Zhang, Z.; Liu, J. J.; Chen, R.; Chen, Y.; Chen, J. Fuel. 2017, 209, 69.
[19] Raksajati, A.; Ho, M. T.; Wiley, D. E. Ind. Eng. Chem. Res. 2016, 55, 1980.
[20] WuHan University, Analytical Chemistry, Vol. I, Higher Education Press, Beijing, 2006, pp. 110~157(in Chinese). (武汉大学, 分析化学, 上册, 高等教育出版社, 北京, 2006, pp. 110~157.)
[21] Ying, S.; Li, H. P.; Zhang, S. J.; Hui, X.; Wang, Z. X.; Li, Z.; Zhang, J. M. Chem. Eng. J. 2011, 175, 324.
[22] Faria, D. L. A.; Santos, P. S. J. Raman Spectrosc. 2010, 19, 471.
[23] Ando, R. A.; Matazo, D. R. C.; Santos, P. S. J. Raman Spectrosc. 2010, 41, 771.
[24] Deng, D. S.; Liu, X. B.; Bao, G. Ind. Eng. Chem. Res. 2017, 56, 46.
[25] Han, G. Q.; Jiang, Y. T.; Deng, D. S.; Ai, N. J. Chem. Thermodyn. 2016, 92, 207.
[26] Yang, D. Z.; Hou, M. Q.; Ning, H.; Zhang, J. L.; Ma, J.; Han, B. X. Phys. Chem. Chem. Phys. 2013, 15, 18123.
[27] Garea, A.; Fernández, I.; Viguri, J. R.; Ortiz, M. I.; Fernández, J.; Renedo, M. J.; Irabien, J. A. Chem. Eng. J. 1997, 66, 171.
[28] Al-Enezi, G.; Ettouney, H.; El-Dessouky, H.; Fawzi, N. Ind. Eng. Chem. Res. 2001, 40, 1434.
[29] Deng, D. S.; Liu, X. B.; Cui, Y. H.; Jiang, Y. T. J. Chem. Thermodyn. 2018, 119, 84.
[30] Yang, D. Z.; Cui, G.; Lv, M. Energ. Fuel. 2018, 32, 10796.
[31] Liu, B. Y.; Wei, F. X.; Zhao, J. J.; Wang, Y. Y. RSC Adv. 2013, 3, 2470.
[32] Chen, K. H.; Lin, W. J.; Yu, X. N.; Luo, X. Y.; Wang, C. M. AIChE J. 2015, 61, 2028.
[33] Xu, X. C.; Song, C. S.; Wincek, R.; Andresen, J. M.; Miller, B. G.; Scaroni, A. W. Fuel Chem. Div. Prepr. 2003, 48, 162.
[34] Anderson, J. L.; Dixon, J. N. K.; Maginn, E. J.; Brennecke, J. F. J. Phys. Chem. B 2006, 110, 15059.
[35] Shiflett, M. B.; Yokozeki, A. J. Chem. Eng. Data 2008, 54, 108.

N,N-二甲基正辛胺/十六烷混合体系液液相变吸收SO₂

Liquid-liquid Phase-change Absorption of SO₂ Using N,N-Dimethyl-n-octylamine Mixed with Hexadecane

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