Enhancement of CO2 capture and microstructure evolution of the spent calcium-based sorbent by the self-reactivation process

doi:10.1016/j.cjche.2020.09.025

中国化学工程学报 ›› 2021, Vol. 29 ›› Issue (1): 160-166.DOI: 10.1016/j.cjche.2020.09.025

• Separation Science and Engineering • 上一篇下一篇

Enhancement of CO₂ capture and microstructure evolution of the spent calcium-based sorbent by the self-reactivation process

Rongyue Sun^1,2, Hongliang Zhu¹, Rui Xiao²

1 School of Energy and Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
2 Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China

收稿日期:2020-08-05 修回日期:2020-09-17 出版日期:2021-01-28 发布日期:2021-04-02
通讯作者: Rongyue Sun, Rui Xiao
基金资助:
This work was supported by the National Natural Science Foundation of China (51706094).

Enhancement of CO₂ capture and microstructure evolution of the spent calcium-based sorbent by the self-reactivation process

Rongyue Sun^1,2, Hongliang Zhu¹, Rui Xiao²

1 School of Energy and Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China;
2 Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China

Received:2020-08-05 Revised:2020-09-17 Online:2021-01-28 Published:2021-04-02
Contact: Rongyue Sun, Rui Xiao
Supported by:
This work was supported by the National Natural Science Foundation of China (51706094).

摘要/Abstract

摘要： The effect of self-reactivation on the CO₂ capture capacity of the spent calcium based sorbent was investigated in a dual-fixed bed reactor. The sampled sorbents from the dual-fixed bed reactor were sent for XRD, SEM and N₂ adsorption analysis to explain the self-reactivation mechanism. The results show that the CaO in the spent sorbent discharged from the calciner absorbs the vapor in the air to form Ca(OH)₂ and further Ca(OH)₂·2H₂O under environmental conditions, during which process the CO₂ capture capacity of the spent sorbent can be self-reactivated. The microstructure of the spent sorbent is improved by the self-reactivation process, resulting in more porous microstructure, higher BET surface area and pore volume. Compared with the calcined spent sorbent that has experienced 20 cycles, the pore volume and BET surface area are increased by 6.69 times and 56.3% after self-reactivation when φ=170%. The improved microstructure makes it easier for the CO₂ diffusion and carbonation reaction in the sorbent. Therefore, the CO₂ capture capacity of the spent sorbent is enhanced by self-reactivation process. A self-reactivation process coupled with calcium looping process was proposed to reuse the discharged spent calcium based sorbent from the calciner. Higher average carbonation conversion and CO₂ capture efficiency can be achieved when self-reactivated spent sorbent is used as supplementary sorbent in the calciner rather than fresh CaCO₃ under the same conditions.

关键词: CO₂ capture, Calcium looping, Self-reactivation, Microstructure evolution

Abstract: The effect of self-reactivation on the CO₂ capture capacity of the spent calcium based sorbent was investigated in a dual-fixed bed reactor. The sampled sorbents from the dual-fixed bed reactor were sent for XRD, SEM and N₂ adsorption analysis to explain the self-reactivation mechanism. The results show that the CaO in the spent sorbent discharged from the calciner absorbs the vapor in the air to form Ca(OH)₂ and further Ca(OH)₂·2H₂O under environmental conditions, during which process the CO₂ capture capacity of the spent sorbent can be self-reactivated. The microstructure of the spent sorbent is improved by the self-reactivation process, resulting in more porous microstructure, higher BET surface area and pore volume. Compared with the calcined spent sorbent that has experienced 20 cycles, the pore volume and BET surface area are increased by 6.69 times and 56.3% after self-reactivation when φ=170%. The improved microstructure makes it easier for the CO₂ diffusion and carbonation reaction in the sorbent. Therefore, the CO₂ capture capacity of the spent sorbent is enhanced by self-reactivation process. A self-reactivation process coupled with calcium looping process was proposed to reuse the discharged spent calcium based sorbent from the calciner. Higher average carbonation conversion and CO₂ capture efficiency can be achieved when self-reactivated spent sorbent is used as supplementary sorbent in the calciner rather than fresh CaCO₃ under the same conditions.

Key words: CO₂ capture, Calcium looping, Self-reactivation, Microstructure evolution

Rongyue Sun, Hongliang Zhu, Rui Xiao. Enhancement of CO₂ capture and microstructure evolution of the spent calcium-based sorbent by the self-reactivation process[J]. 中国化学工程学报, 2021, 29(1): 160-166.

Rongyue Sun, Hongliang Zhu, Rui Xiao. Enhancement of CO₂ capture and microstructure evolution of the spent calcium-based sorbent by the self-reactivation process[J]. Chinese Journal of Chemical Engineering, 2021, 29(1): 160-166.

参考文献

[1] L.F. Zhou, L.B. Duan, E.J. Anthony, A calcium looping process for simultaneous CO₂ capture and peak shaving in a coal-fired power plant, Appl. Energy 235(2019) 480-486.
[2] T. Papalas, A. Antzara, A.A. Lemonidou, Evaluation of calcium-based sorbents derived from natural ores and industrial wastes for high temperature CO₂ capture, Ind. Eng. Chem. Res. 59(21) (2020) 9926-9938.
[3] L. Yang, H.B. Yu, S.Q. Wang, H.W. Wang, Carbon dioxide captured from flue gas by modified Ca-based sorbents in fixed-bed reactor at high temperature, Chin. J. Chem. Eng. 21(2) (2013) 199-204.
[4] J. Chen, L.B. Duan, F. Donat, C.R. Müller, E.J. Anthony, M.H. Fan, Self-activated, nanostructured composite for improved CaL-CLC technology, Chem. Eng. J. 351(2018) 1038-1046.
[5] A. Coppola, F. Scala, A preliminary techno-economic analysis on the calcium looping process with simultaneous capture of CO₂ and SO₂ from a coal-based combustion power plant, Energies 13(9) (2020) 2176.
[6] D.P. Hanak, M. Erans, S.A. Nabavi, M. Jeremias, L.M. Romeo, V. Manovic, Technical and economic feasibility evaluation of calcium looping with no CO₂ recirculation, Chem. Eng. J. 335(2018) 763-773.
[7] X.Y. Yan, Y.J. Li, J.L. Zhao, Z.Y. Wang, Density functional theory study on CO₂ adsorption by Ce-promoted CaO in the presence of steam, Energy Fuel 34(5) (2020) 6197-6208.
[8] Y.Q. Xu, H.R. Ding, C. Luo, Y. Zheng, Y. Xu, X.S. Li, Z.W. Zhang, C. Shen, L.Q. Zhang, Effect of lignin, cellulose and hemicellulose on calcium looping behavior of CaO-based sorbents derived from extrusion-spherization method, Chem. Eng. J. 334(2018) 2520-2529.
[9] J. Sun, Y. Sun, Y.D. Yang, X.L. Tong, W.Q. Liu, Plastic/rubber waste-templated carbide slag pellets for regenerable CO₂ capture at elevated temperature, Appl. Energy 242(2019) 919-930.
[10] B.W. Wang, X.Y. Song, Z.H. Wang, C.G. Zheng, Preparation and application of the sol-gel combustion synthesis-made CaO/CaZrO₃ sorbent for cyclic CO₂ capture through the severe calcination condition, Chin. J. Chem. Eng. 22(9) (2014) 991-999.
[11] B. Arias, Y.A. Criado, J.C. Abanades, Thermal integration of a flexible calcium looping CO₂ capture system in an existing back-up coal power plant, ACS Omega 5(10) (2020) 4844-4852.
[12] M. Erans, M. Jeremias, L. Zheng, J.G. Yao, J. Blamey, V. Manovic, P.S. Fennell, E.J. Anthony, Pilot testing of enhanced sorbents for calcium looping with cement production, Appl. Energy 225(2018) 392-401.
[13] C.Y. Chi, Y.J. Li, R.Y. Sun, X.T. Ma, L.B. Duan, Z.Y. Wang, HCl removal performance of Mg-stabilized carbide slag from carbonation/calcination cycles for CO₂ capture, RSC.Adv. 6(106) (2016) 104303-104310.
[14] D.L. He, Y. Shao, C.L. Qin, G. Pu, J.Y. Ran, L. Zhang, Understanding the sulfation pattern of CaO-based sorbents in a novel process for sequential CO₂ and SO₂ capture, Ind. Eng. Chem. Res. 55(39) (2016) 10251-10262.
[15] Y.J. Li, R.Y. Sun, Studies on adsorption of carbon dioxide on alkaline paper mill waste using cyclic process, Energy Convers. Manage. 82(2014) 46-53.
[16] Y.L. Su, R. Han, J.H. Gao, S.Y. Wei, F. Sun, G.B. Zhao, Novel method for regeneration/reactivation of spent dolomite-based sorbents from calcium looping cycles, Chem. Eng. J. 360(2019) 148-156.
[17] Z.J. Yu, L.B. Duan, C.L. Su, Y.J. Li, E.J. Anthony, Effect of steam hydration on reactivity and strength of cement-supported calcium sorbents for CO₂ capture, Greenh. Gases 7(2) (2017) 916-925.
[18] W. Zhang, Y.J. Li, Z.R. He, X.T. Ma, H.P. Song, CO₂ capture by carbide slag calcined under high-concentration steam and energy requirement in calcium looping conditions, Appl. Energy 206(2017) 869-878.
[19] D.L. He, Z.L. Ou, C.L. Qin, T. Deng, J.J. Yin, G. Pu, Understanding the catalytic acceleration effect of steam on CaCO₃ decomposition by density function theory, Chem. Eng. J. 379(2020) 122348.
[20] Y.J. Li, C.S. Zhao, H.C. Chen, Q.Q. Ren, L.B. Duan, CO₂ capture efficiency and energy requirement analysis of power plant using modified calcium-based sorbent looping cycle, Energy 36(2011) 1590-1598.
[21] J.C. Abanades, The maximum capture efficiency of CO₂ using a carbonation/calcination cycle of CaO/CaCO₃, Chem. Eng. J. 90(2002) 303-306.

Enhancement of CO₂ capture and microstructure evolution of the spent calcium-based sorbent by the self-reactivation process

Enhancement of CO₂ capture and microstructure evolution of the spent calcium-based sorbent by the self-reactivation process

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	Jian Wang, Yuanhui Shen, Donghui Zhang, Zhongli Tang, Wenbin Li. Integrated vacuum pressure swing adsorption and Rectisol process for CO₂ capture from underground coal gasification syngas[J]. 中国化学工程学报, 2023, 57(5): 265-279.
[2]	Xingzhong Li, Kunlin Yu, Zibo He, Bo Liu, Rongfei Zhou, Weihong Xing. Improved SSZ-13 thin membranes fabricated by seeded-gel approach for efficient CO₂ capture[J]. 中国化学工程学报, 2023, 56(4): 273-280.
[3]	Zhong Ma, Guofu Liu, Hui Zhang, Yonggang Lu. Investigation of the redox performance of pyrite cinder calcined at different temperature in chemical looping combustion[J]. 中国化学工程学报, 2022, 48(8): 98-105.
[4]	Ding-Ming Xue, Wen-Juan Zhang, Xiao-Qin Liu, Shi-Chao Qi, Lin-Bing Sun. Fabrication of azobenzene-functionalized porous polymers for selective CO₂ capture[J]. 中国化学工程学报, 2022, 43(3): 24-30.
[5]	Xiaobin Chen, Yuting Tang, Chuncheng Ke, Chaoyue Zhang, Sichun Ding, Xiaoqian Ma. CO₂ capture by double metal modified CaO-based sorbents from pyrolysis gases[J]. 中国化学工程学报, 2022, 43(3): 40-49.
[6]	Wanqiao Liang, Jihuan Huang, Penny Xiao, Ranjeet Singh, Jining Guo, Leila Dehdari, Gang Kevin Li. Amine-immobilized HY zeolite for CO₂ capture from hot flue gas[J]. 中国化学工程学报, 2022, 43(3): 335-342.
[7]	Xiuxin Yu, Bing Liu, Yuanhui Shen, Donghui Zhang. Design and experiment of high-productivity two-stage vacuum pressure swing adsorption process for carbon capturing from dry flue gas[J]. 中国化学工程学报, 2022, 43(3): 378-391.
[8]	Xionghui Liu, Jianfeng Du, Yu Ye, Yuchuan Liu, Shun Wang, Xianyu Meng, Xiaowei Song, Zhiqiang Liang, Wenfu Yan. Boosting selective C₂H₂/CH₄, C₂H₄/CH₄ and CO₂/CH₄ adsorption performance via 1,2,3-triazole functionalized triazine-based porous organic polymers[J]. 中国化学工程学报, 2022, 42(2): 64-72.
[9]	Jiajia Wang, Lizhi Wang, You Wang, Du Zhang, Qin Xiao, Jianhan Huang, You-Nian Liu. Recent progress in porous organic polymers and their application for CO₂ capture[J]. 中国化学工程学报, 2022, 42(2): 91-103.
[10]	Peng Tan, Yao Jiang, Qiurong Wu, Chen Gu, Shichao Qi, Qiang Zhang, Xiaoqin Liu, Linbing Sun. Light-responsive adsorbents with tunable adsorbent-adsorbate interactions for selective CO₂ capture[J]. 中国化学工程学报, 2022, 42(2): 104-111.
[11]	Baowen Wang, Zhongyuan Cai, Heyu Li, Yanchen Liang, Tao Jiang, Ning Ding, Haibo Zhao. Reaction characteristics investigation of CeO₂-enhanced CaSO₄ oxygen carrier with lignite[J]. 中国化学工程学报, 2022, 42(2): 319-328.
[12]	Tao Jiang, Fei Xiao, Yujun Zhao, Shengping Wang, Xinbin Ma. High-temperature CO₂ sorbents with citrate and stearate intercalated Ca—Al hydrotalcite-like as precursor[J]. 中国化学工程学报, 2022, 50(10): 177-184.
[13]	Yu Dong, Tiantian Ping, Shufeng Shen. Solubility of CO₂ in nonaqueous system of 2-(butylamino)ethanol with 2-butoxyethanol: Experimental data and model representation[J]. 中国化学工程学报, 2022, 41(1): 441-448.
[14]	Wan Zhang, Yingjie Li, Yuqi Qian, Boyu Li, Jianli Zhao, Zeyan Wang. NO removal performance of CO in carbonation stage of calcium looping for CO₂ capture[J]. 中国化学工程学报, 2021, 37(9): 30-38.
[15]	Cao Kuang, Shuzhong Wang, Ming Luo, Jun Zhao. Reactivity study and kinetic evaluation of CuO-based oxygen carriers modified by three different ores in chemical looping with oxygen uncoupling (CLOU) process[J]. 中国化学工程学报, 2021, 37(9): 54-63.