Efficient SO2 removal using aqueous ionic liquid at low partial pressure

doi:10.1016/j.cjche.2022.09.021

Chinese Journal of Chemical Engineering ›› 2023, Vol. 58 ›› Issue (6): 355-363.DOI: 10.1016/j.cjche.2022.09.021

Efficient SO₂ removal using aqueous ionic liquid at low partial pressure

Yutong Jiang¹, Yifeng Chen^2,3, Fuliu Yang¹, Jixue Fan¹, Jun Li¹, Zhuhong Yang¹, Xiaoyan Ji⁴

1. College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;
2. Institute of Chemical Industry of Forest Products, CAF, Key Laboratory of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
3. Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China;
4. Energy Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden

Received:2022-04-18 Revised:2022-09-23 Online:2023-08-31 Published:2023-06-28
Contact: Yifeng Chen,E-mail:yfchen@icifp.cn;Zhuhong Yang,E-mail:zhhyang@njtech.edu.cn
Supported by:
We would like to thank the National Natural Science Foundation of China (22108115, 21776123). Y. Chen thanks China Postdoctoral Science Foundation funded project (2021 M691554) and Kempe foundation (SMK21-0020) in Sweden, and X. Ji thanks Swedish Energy Agency (P50830-1).

Efficient SO₂ removal using aqueous ionic liquid at low partial pressure

Yutong Jiang¹, Yifeng Chen^2,3, Fuliu Yang¹, Jixue Fan¹, Jun Li¹, Zhuhong Yang¹, Xiaoyan Ji⁴

1. College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;
2. Institute of Chemical Industry of Forest Products, CAF, Key Laboratory of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;
3. Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China;
4. Energy Engineering, Division of Energy Science, Luleå University of Technology, Luleå 97187, Sweden

通讯作者: Yifeng Chen,E-mail:yfchen@icifp.cn;Zhuhong Yang,E-mail:zhhyang@njtech.edu.cn
基金资助:
We would like to thank the National Natural Science Foundation of China (22108115, 21776123). Y. Chen thanks China Postdoctoral Science Foundation funded project (2021 M691554) and Kempe foundation (SMK21-0020) in Sweden, and X. Ji thanks Swedish Energy Agency (P50830-1).

Abstract

Abstract: The development of novel absorbents is essential for SO₂ removal. In this study, a novel ionic liquid (IL, [BHEP][HSO₄]) was prepared, and water was selected as the co-solvent. The density and viscosity of aqueous [BHEP][HSO₄] were measured and the SO₂ absorption performance was systematically investigated. Furthermore, the thermodynamic properties of SO₂ in aqueous [BHEP][HSO₄] were calculated. Additionally, the mechanism of SO₂ absorption in aqueous [BHEP][HSO₄] was confirmed using Fourier-transform infrared and nuclear magnetic resonance spectroscopy. It showed that [BHEP][HSO₄] absorbed 0.302 g·g^-1 (g SO₂/g IL) at an SO₂ partial pressure of 2000 μl·L^-1 at 303.2 K, and the SO₂ desorption enthalpy was -39.63 kJ·mol^-1. The mechanistic study confirmed the chemical absorption of SO₂ in aqueous [BHEP][HSO₄].

Key words: Ionic liquids, Sulfur dioxide, Absorption capacity, Desorption enthalpy

摘要： The development of novel absorbents is essential for SO₂ removal. In this study, a novel ionic liquid (IL, [BHEP][HSO₄]) was prepared, and water was selected as the co-solvent. The density and viscosity of aqueous [BHEP][HSO₄] were measured and the SO₂ absorption performance was systematically investigated. Furthermore, the thermodynamic properties of SO₂ in aqueous [BHEP][HSO₄] were calculated. Additionally, the mechanism of SO₂ absorption in aqueous [BHEP][HSO₄] was confirmed using Fourier-transform infrared and nuclear magnetic resonance spectroscopy. It showed that [BHEP][HSO₄] absorbed 0.302 g·g^-1 (g SO₂/g IL) at an SO₂ partial pressure of 2000 μl·L^-1 at 303.2 K, and the SO₂ desorption enthalpy was -39.63 kJ·mol^-1. The mechanistic study confirmed the chemical absorption of SO₂ in aqueous [BHEP][HSO₄].

关键词: Ionic liquids, Sulfur dioxide, Absorption capacity, Desorption enthalpy

Yutong Jiang, Yifeng Chen, Fuliu Yang, Jixue Fan, Jun Li, Zhuhong Yang, Xiaoyan Ji. Efficient SO₂ removal using aqueous ionic liquid at low partial pressure[J]. Chinese Journal of Chemical Engineering, 2023, 58(6): 355-363.

Yutong Jiang, Yifeng Chen, Fuliu Yang, Jixue Fan, Jun Li, Zhuhong Yang, Xiaoyan Ji. Efficient SO₂ removal using aqueous ionic liquid at low partial pressure[J]. 中国化学工程学报, 2023, 58(6): 355-363.

References

[1] M. Rathnayake, P. Julnipitawong, S. Tangtermsirikul, P. Toochinda, Utilization of coal fly ash and bottom ash as solid sorbents for sulfur dioxide reduction from coal fired power plant: life cycle assessment and applications, J. Clean. Prod. 202 (2018) 934-945.
[2] Z.M. Li, S.X. Zhu, F.F. Mao, Y. Zhou, W.S. Zhu, D.J. Tao, CTAB-controlled synthesis of phenolic resin-based nanofiber aerogels for highly efficient and reversible SO₂ capture, Chem. Eng. J. 431 (2022) 133715
[3] K.H. Ng, S.Y. Lai, N.F.M. Jamaludin, A.R. Mohamed, A review on dry-based and wet-based catalytic sulphur dioxide (SO₂) reduction technologies, J. Hazard. Mater. 423 (2022) 127061
[4] X.B. Wang, J.B. Du, H. Cui, Sulfur dioxide, a double-faced molecule in mammals, Life Sci. 98 (2) (2014) 63-67
[5] K. Wang, W.J. Xu, Q.L. Wang, C.C. Zhao, Z.X. Huang, C. Yang, C.S. Ye, T. Qiu, Rational design and screening of ionic liquid absorbents for simultaneous and stepwise separations of SO₂ and CO₂ from flue gas, Ind. Eng. Chem. Res. 61 (6) (2022) 2548-2561.
[6] S. Wang, S. Xu, S. Gao, P. Xiao, M. Jiang, H. Zhao, B. Huang, L. Liu, H. Niu, J. Wang, D. Guo, Simultaneous removal of SO₂ and NOx from flue gas by low-temperature adsorption over activated carbon, Sci. Rep, 11 (1) (2021) 11003
[7] M.B. Shiflett, A. Yokozeki, Chemical absorption of sulfur dioxide in room-temperature ionic liquids, Ind. Eng. Chem. Res. 49 (3) (2010) 1370-1377
[8] X.K. Li, J.R. Han, Y. Liu, Z.H. Dou, T.A. Zhang, Summary of research progress on industrial flue gas desulfurization technology, Sep. Purif. Technol. 281 (2022) 119849
[9] M.A. Hanif, N. Ibrahim, A. Abdul Jalil, Sulfur dioxide removal: an overview of regenerative flue gas desulfurization and factors affecting desulfurization capacity and sorbent regeneration, Environ. Sci. Pollut. Res. Int. 27 (22) (2020) 27515-27540
[10] X. Xia, L.Q. Zhang, X.L. Yuan, C.Y. Ma, Z.L. Song, X.Q. Zhao, Integrated assessment of the environmental and economic effects of resource utilization process for lime/gypsum flue gas desulfurization collaborative desulfurized gypsum, Environ. Eng. Sci. 38 (9) (2021) 886-898.
[11] A. Shakeel, H. Mahmood, U. Farooq, Z. Ullah, S. Yasin, T. Iqbal, C. Chassagne, M. Moniruzzaman, Rheology of pure ionic liquids and their complex fluids: a review, ACS Sustain. Chem. Eng, 7 (16) (2019) 13586-13626
[12] L.L. Jiang, K. Mei, K.H. Chen, R.N. Dao, H.R. Li, C.M. Wang, Design and prediction for highly efficient SO₂ capture from flue gas by imidazolium ionic liquids, Green Energy Environ. 7 (1) (2022) 130-136
[13] O. Nordness, J.F. Brennecke, Ion dissociation in ionic liquids and ionic liquid solutions, Chem. Rev. 120 (23) (2020) 12873-12902
[14] F.F. Mao, Y. Zhou, W.S. Zhu, X.Y. Sang, Z.M. Li, D.J. Tao, Synthesis of guanidinium-based poly(ionic liquids) with nonporosity for highly efficient SO₂ capture from flue gas, Ind. Eng. Chem. Res. 60 (16) (2021) 5984-5991
[15] W.Z. Wu, B.X. Han, H.X. Gao, Z.M. Liu, T. Jiang, J. Huang, Desulfurization of flue gas: SO₂ absorption by an ionic liquid, Angew. Chem. Int. Ed. 43 (18) (2004) 2415-2417
[16] Huang J, Riisager A, Wasserscheid P, Fehrmann R, Reversible physical absorption of SO₂ by ionic liquids, Chem. Commun. (Camb) (38) (2006) 4027-4029
[17] C.M. Wang, G.K. Cui, X.Y. Luo, Y.J. Xu, H.R. Li, S. Dai, Highly efficient and reversible SO₂ capture by tunable azole-based ionic liquids through multiple-site chemical absorption, J. Am. Chem. Soc. 133 (31) (2011) 11916-11919
[18] K.H. Chen, W.J. Lin, X.N. Yu, X.Y. Luo, F. Ding, X. He, H.R. Li, C.M. Wang, Designing of anion-functionalized ionic liquids for efficient capture of SO₂from flue gas, AIChE J. 61 (6) (2015) 2028-2034
[19] B. Jiang, H.M. Zhang, L.H. Zhang, N. Zhang, Z.H. Huang, Y. Chen, Y.L. Sun, X.W. Tantai, Novel deep eutectic solvents for highly efficient and reversible absorption of SO₂ by preorganization strategy, ACS Sustainable Chem. Eng. 7 (9) (2019) 8347-8357
[20] D. Li, Y. Kang, J. Li, Z.C. Wang, Z.N. Yan, K. Sheng, Chemically tunable DILs: physical properties and highly efficient capture of low-concentration SO₂, Sep. Purif. Technol. 240 (2020) 116572
[21] G.K. Cui, S.Z. Lyu, H.Y. Wang, Z.Y. Li, R.N. Zhang, J.J. Wang, Tuning the structure of pyridinolate-based functional ionic liquids for highly efficient SO₂ absorption, Fuel 303 (2021) 121311
[22] F.Y. Wei, Y. He, P. Xue, Y.J. Yao, C.W. Shi, P. Cui, Mass transfer performance for low SO₂ absorption into aqueous N, N'-bis(2-hydroxypropyl)piperazine solution in a θ-ring packed column, Ind. Eng. Chem. Res. 53 (11) (2014) 4462-4468.
[23] P. Cui, T.T. Wang, Q. Wang, B. Li, Effects of Acidic Compounds on SO₂ Absorption and Desorption Property of 1,4-bis(2-hydroxypropyl)piperazine aqueous solution, Chem. J. Chinese. U, 28 (3) (2013) 399-405.
[24] J.F. Liu, T.T. Wang, Q. Wang, P. Cui, Study on parameters of SO₂ absorption and desorption in 1,4-bis(2-hydroxypropyl)piperazine aqueous solution, Applied Chemical Industry, 41 (4) (2012) 606-608
[25] G.K. Cui, J.X. Liu, S.Z. Lyu, H.Y. Wang, Z.Y. Li, J.J. Wang, Efficient and reversible SO₂ absorption by environmentally friendly task-specific deep eutectic solvents of PPZBr + gly, ACS Sustainable Chem. Eng. 7 (16) (2019) 14236-14246
[26] X.X. Lu, L. Yue, M.J. Hu, Q. Cao, L. Xu, Y.S. Guo, S.L. Hu, W.J. Fang, Piperazinium-based ionic liquids with lactate anion for extractive desulfurization of fuels, Energy Fuels 28 (3) (2014) 1774-1780
[27] V. Sanz, R. Alcalde, M. Atilhan, S. Aparicio, Insights from quantum chemistry into piperazine-based ionic liquids and their behavior with regard to CO₂, J. Mol. Model. 20 (3) (2014) 2107
[28] S.C. Tiwari, K.K. Pant, S. Upadhyayula, Efficient CO₂ absorption in aqueous dual functionalized cyclic ionic liquids, J. CO₂ Util. 45 (2021) 101416
[29] S. Aparicio, M. Atilhan, On the properties of CO₂ and flue gas at the piperazinium-based ionic liquids interface: a molecular dynamics study, J. Phys. Chem. C 117 (29) (2013) 15061-15074.
[30] G.K. Cui, S.Z. Lyu, F.T. Zhang, H.Y. Wang, Z.Y. Li, Y.N. Li, J.J. Wang, Tuning ionic liquids with functional anions for SO₂ capture through simultaneous cooperation of N and O chemical active sites with SO₂, Ind. Eng. Chem. Res, 59 (49) (2020) 21522-21529
[31] A.F. Bouarab, J.P. Harvey, C. Robelin, Viscosity models for ionic liquids and their mixtures, Phys. Chem. Chem. Phys. 23 (2) (2021) 733-752
[32] Z.P. McAtee, M.P. Heitz, Density, viscosity and excess properties in the trihexyltetradecylphosphonium chloride ionic liquid/methanol cosolvent system, J. Chem. Thermodyn. 93 (2016) 34-44
[33] N.D. Khupse, A. Kumar, Dramatic change in viscosities of pure ionic liquids upon addition of molecular solvents, J. Solut. Chem. 38 (5) (2009) 589-600
[34] J.G. Qian, S.H. Ren, S.D. Tian, Y.C. Hou, C.X. Wang, W.Z. Wu, Highly efficient and reversible absorption of SO₂ by aqueous triethylenetetramine tetralactate solutions, Ind. Eng. Chem. Res. 53 (39) (2014) 15207-15212
[35] B. Jiang, S. Hou, L.H. Zhang, N. Yang, N. Zhang, X.M. Xiao, X.D. Yang, Y.L. Sun, X.W. Tantai, Ether-linked diamine carboxylate ionic liquid aqueous solution for efficient absorption of SO₂, Ind. Eng. Chem. Res. 59 (38) (2020) 16786-16794
[36] M.R. Mohammadi, F. Hadavimoghaddam, S. Atashrouz, A. Abedi, A. Hemmati-Sarapardeh, A. Mohaddespour, Toward predicting SO₂ solubility in ionic liquids utilizing soft computing approaches and equations of state, J. Taiwan Inst. Chem. Eng. 133 (2022) 104220
[37] M.J. Jin, Y.C. Hou, W.Z. Wu, S.H. Ren, S.D. Tian, L. Xiao, Z.G. Lei, Solubilities and thermodynamic properties of SO₂ in ionic liquids, J. Phys. Chem. B 115 (20) (2011) 6585-6591
[38] Y.Q. Chen, X.Y. Liu, J.M. Woodley, G.M. Kontogeorgis, Gas solubility in ionic liquids: UNIFAC-IL model extension, Ind. Eng. Chem. Res. 59 (38) (2020) 16805-16821
[39] K. Huang, Y.L. Chen, X.M. Zhang, S. Xia, Y.T. Wu, X.B. Hu, SO₂ absorption in acid salt ionic liquids/sulfolane binary mixtures: experimental study and thermodynamic analysis, Chem. Eng. J. 237 (2014) 478-486
[40] K. Huang, Y.T. Wu, X.B. Hu, Effect of alkalinity on absorption capacity and selectivity of SO₂ and H₂S over CO₂: substituted benzoate-based ionic liquids as the study platform, Chem. Eng. J. 297 (2016) 265-276
[41] Z.Y. Geng, S.Y. Ma, Y.H. Li, C. Peng, B.J. Jiang, P.L. Liu, Y. Xu, Guanidinium-based ionic liquids for high-performance SO₂ capture and efficient conversion for cyclic sulfite esters, Ind. Eng. Chem. Res. 61 (13) (2022) 4493-4503
[42] P. Cao, Y. Yuan, C.Z. Huang, W.Z. Sun, L. Zhao, Promoting the sulfuric acid catalyzed isobutane alkylation by quaternary ammonium ionic liquids, AIChE J. 66 (8) (2020) e16979
[43] C.M. Wang, L.P. Guo, H.R. Li, Y. Wang, J.Y. Weng, L.H. Wu, Preparation of simple ammonium ionic liquids and their application in the cracking of dialkoxypropanes, Green Chem. 8 (7) (2006) 603
[44] Q. Wang, H.W. Wu, T. Zhang, Y.C. Fan, W.C. Zhang, K. He, Efficient absorption of low partial pressure SO₂ by deep eutectic solvents based on pyridine derivatives, Chem. Eng. Res. Des. 177 (2022) 36-44
[45] M.Y. Chai, W.B. Zhao, G.M. Li, S.C. Xu, Q.M. Jia, Y. Chen, Novel SO₂ phase-change absorbent: mixture of N, N-dimethylaniline and liquid paraffin, Ind. Eng. Chem. Res. 57 (37) (2018) 12502-12510
[46] S.R. Lim, J. Hwang, C.S. Kim, H.S. Park, M. Cheong, H.S. Kim, H. Lee, Absorption and desorption of SO₂ in aqueous solutions of diamine-based molten salts, J. Hazard. Mater. 289 (2015) 63-71
[47] P. Liu, K.X. Cai, X.M. Zhang, T.X. Zhao, Effective absorption of SO₂ by imidazole-based protic ionic liquids with multiple active sites: Thermodynamic and mechanical studies, Aiche J. 68 (4) (2022) e17596
[48] Q. Xu, W. Jiang, J.B. Xiao, X.H. Wei, Solubility of sulfur dioxide in tetraglyme-NH₄SCN ionic liquid: high absorption efficiency, RSC Adv. 8 (73) (2018) 42116-42122
[49] K. Sheng, Y. Kang, J. Li, H.Y. Xu, D. Li, High-efficiency absorption of SO₂ by a new type of deep eutectic solvents, Energy Fuels 34 (3) (2020) 3440-3448
[50] D.Z. Yang, S.Z. Zhang, D.E. Jiang, Efficient absorption of SO₂ by deep eutectic solvents formed by biobased aprotic organic compound succinonitrile and 1-ethyl-3-methylimidazolium chloride, ACS Sustainable Chem. Eng. 7 (10) (2019) 9086-9091
[51] X.C. Meng, J.Y. Wang, H.C. Jiang, X.J. Zhang, S.L. Liu, Y.Q. Hu, Guanidinium-based dicarboxylic acid ionic liquids for SO₂ capture, J. Chem. Technol. Biotechnol. 92 (4) (2017) 767-774
[52] D.S. Deng, C. Zhang, X.X. Deng, L. Gong, Efficient absorption of low partial pressure SO₂ by 1-ethyl-3-methylimidazolium chloride plus N-formylmorpholine deep eutectic solvents, Energy Fuels 34 (1) (2020) 665-671
[53] M. Lv, D.Z. Yang, J. Chen, Deep eutectic solvents consisting of 1-ethyl-3-methylimidazolium chloride and biobased 2-pyrrolidone for reversible SO 2 capture, ChemistrySelect 5 (24) (2020) 7142-7147
[54] G. Cui, D.Z. Yang, H.B. Qi, Efficient SO₂ absorption by anion-functionalized deep eutectic solvents, Ind. Eng. Chem. Res. 60 (12) (2021) 4536-4541
[55] K. Zhang, S.H. Ren, X. Yang, Y.C. Hou, W.Z. Wu, Y.Y. Bao, Efficient absorption of low-concentration SO₂ in simulated flue gas by functional deep eutectic solvents based on imidazole and its derivatives, Chem. Eng. J. 327 (2017) 128-134
[56] K. Zhang, S.H. Ren, Y.C. Hou, W.Z. Wu, Efficient absorption of SO₂ with low-partial pressures by environmentally benign functional deep eutectic solvents, J. Hazard. Mater. 324 (Pt B) (2017) 457-463
[57] D.S. Deng, X.B. Liu, B. Gao, Physicochemical properties and investigation of azole-based deep eutectic solvents as efficient and reversible SO₂ absorbents, Ind. Eng. Chem. Res. 56 (46) (2017) 13850-13856
[58] D. Li, Y. Kang, Significantly promoted SO₂ uptake by the mixture of N-methylated ethylene imine polymer and 1-ethyl-3-methylimidazolium tetrazolate, J. Hazard. Mater. 404 (Pt A) (2021) 124101
[59] G.K. Cui, C.M. Wang, J.J. Zheng, Y. Guo, X.Y. Luo, H.R. Li, Highly efficient SO₂ capture by dual functionalized ionic liquids through a combination of chemical and physical absorption, Chem. Commun. 48 (20) (2012) 2633
[60] G.K. Cui, N. Zhao, Y.N. Li, H.Y. Wang, Y.L. Zhao, Z.Y. Li, J.J. Wang, Limited number of active sites strategy for improving SO₂ capture by ionic liquids with fluorinated acetylacetonate anion, ACS Sustainable Chem. Eng. 5 (9) (2017) 7985-7992
[61] W. Li, Y. Liu, L.H. Wang, G.J. Gao, Using ionic liquid mixtures to improve the SO₂ absorption performance in flue gas, Energy Fuels 31 (2) (2017) 1771-1777.

Efficient SO₂ removal using aqueous ionic liquid at low partial pressure

Efficient SO₂ removal using aqueous ionic liquid at low partial pressure

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