膜科学与技术

位置：首页 >> 期刊内容阅读

陶瓷膜接触器吸收氮氧化物传质过程模拟研究

作者：孙海龙

单位：中国石化扬子石油化工有限公司南京研究院，南京 210048

关键词：陶瓷膜；膜接触器；脱硝；传质模型；化学吸收

DOI号：

分类号： TQ028.8

出版年,卷(期):页码： 2022,42(4):122-129

摘要：

利用陶瓷膜接触器进行膜吸收是处理氮氧化物最有效的方法之一，然而，针对吸收氮氧化物的膜接触器传质模型几乎没有。通过模拟NO的对流、扩散与反应过程，建立了以NaClO2溶液吸收NO的陶瓷膜接触器传质模型，准确预测了陶瓷膜接触器膜内各点的浓度分布与阻力分布。同时，利用建立的模型分析了不同气体流速、NO进口含量、吸收剂的流速、浓度、pH以及吸收温度对陶瓷膜接触器脱硝效果的影响，优化了膜接触器的操作条件，得到了膜接触器最大的通量和吸收液的有效浓度。通过本研究，利用传质模型可以对膜接触器脱硝效果进行预测，从而为膜接触器脱硝过程的设计与优化提供理论支持。

Membrane absorption of nitrogen oxides by ceramic membrane contactors is one of the most effective methods. However, there is almost no mass transfer model for membrane contactor that absorb nitrogen oxides. In this paper, the convection, diffusion and reaction process of NO are simulated. The mass transfer model of the ceramic membrane contactor that absorbs NO with NaClO2 solution is established. The concentration and resistance distribution in the ceramic membrane contactor membrane are accurately predicted. At the same time, the influence of gas flow rate, NO inlet content, absorbent flow rate, concentration, pH and absorption temperature on the NO removal efficiency of the ceramic membrane contactor were analyzed. The operating conditions of the membrane absorption were optimized. The maximum NO flux of the membrane contactor was obtained. Finally, the mass transfer model predicts the NO removal efficiency of the membrane contactor. The theoretical support for the design and optimization of the membrane contactor's NO removal s is proposed.

基金项目：

作者简介：

孙海龙(1982-)，男，重庆市人，博士，高级工程师，研究方向为化工分离过程

参考文献：

[1] Guo L, Shu Y, Gao J. Present and future development of flue gas control technology of DeNOx in the world[J]. Energy Procedia, 2012, 17: 380-403.
[2] 李萍, 李长明, 段正康,等. 低温烟气脱硝催化剂适用条件与动力学[J]. 化工学报, 2019, 70(8): 2981-2990.
[3] Zhao L, Sun Y X, Chmielewski A G, et al. NO oxidation with NaClO, NaClO2, and NaClO3 solution using electron beam and a one stage absorption system[J]. Plasma Chemistry and Plasma Processing, 2020, 40(1): 433-447.
[4] Han Z T, Zhao D S, Zheng D K, et al. NO removal from simulated flue gas with a NaClO2 mist generated using the ultrasonic atomization method[J]. Energies, 2018, 11(5): 1043-1058.
[5] 李颖娜, 张玉忠, 刘双龙,等. 气-液膜接触器法烟气脱硫脱硝的研究进展[J]. 膜科学与技术, 2018, 38(5):137-144.
[6] Hsu H W, Lee C J, Chou K S. Absorption of NO by NaClO2 solution: Performance characteristics[J]. Chem Eng Commun, 1998, 170: 67-81.
[7] Pourmohammadbagher A, Jamshidi E, Ale-Ebrahim H, et al. Study on simultaneous removal of NOx and SO2 with NaClO2 in a novel swirl wet system[J]. Industrial & Engineering Chemistry Research, 2011, 50(13): 8278-8284.
[8] 王跃, 朱振中. 蛋氨酸合钴溶液膜吸收法去除NO[J]. 膜科学与技术, 2015, 35(5):91-96.
[9] Amirabedi P, Akbari A, Yegani R. Fabrication of hydrophobic PP/CH3SiO2 composite hollow fiber membrane for membrane contactor application[J]. Sep Purif Technol, 2019, 228: 115689-115689.
[10] 韩士贤, 高兴银, 符开云, 等. 疏水性单管陶瓷膜接触器在SO2吸收中的应用[J].化工学报, 2017, 68(6): 2415-2422.
[11] Codolo M C, Bizzo W A. Mass transfer and liquid-film formation in a spray tower for SO2 removal in sodium hydroxide solution[J]. Chemical Engineering & Technology, 2016, 39(10): 1939-1945.
[12] Hoff K A, Svendsen H F. Membrane contactors for CO2 absorption - Application, modeling and mass transfer effects[J]. Chemical Engineering Science, 2014, 116: 331-341.
[13] 周鑫, 邱鸣慧, 罗平. 陶瓷膜接触器化学吸收氮氧化物的传质过程与阻力分析[J]. 化工学报, 2020, 71(8): 3652-3660.
[14] Codolo M, Bizzo W. Mass transfer and liquid-film formation in a spray tower for SO2 removal in sodium hydroxide solution[J]. Chemical Engineering & Technology, 2016, 39(10): 1939-1945.
[15] Zou D, Fan Y. State-of-the-art developments in fabricating ceramic membranes with low energy consumption[J]. Ceramics International, 2021, 47(11): 14966-14987.
[16] 陈颖, 关毅鹏, 郭春刚,等. 气-液膜接触器结构优化及其传质性能研究[J]. 膜科学与技术, 2012, 32(3):48-51.
[17] Luis P, Garea A, Irabien A. Modelling of a hollow fibre ceramic contactor for SO2 absorption[J]. Sep Purif Technol, 2010, 72(2): 174-179.
[18] 范益群, 漆虹, 徐南平. 多孔陶瓷膜制备技术研究进展[J]. 化工学报, 2013, 64(1): 107-115.
[19] Sada E, Kumazawa H, Kudo I, et al. Absorption of lean NOx in aqueous-solutions of NaClO2 and NaOH[J]. Industrial & Engineering Chemistry Process Design and Development, 1979, 18(2): 275-278.
[20] Yang S L, Pan X X, Hang Z T, et al. Nitrogen oxide removal from simulated flue gas by UV-Irradiated sodium chlorite solution in a bench-scale scrubbing reactor[J]. Industrial & Engineering Chemistry Research, 2017, 56(13): 3671-3678.
[21] Wei J C, Luo Y B, Yu P, et al. Removal of NO from flue gas by wet scrubbing with NaClO2/(NH2)2CO solutions[J]. Journal of Industrial and Engineering Chemistry, 2009, 15(1): 16-22.
[22] Zou D, Mao H, Zhong Z, et al. Construction strategies of self-cleaning ceramic composite membranes for water treatment[J]. Ceramics International, https://doi.org/10.1016/j.ceramint.2021.12.086.
[23] Qiu M, Kong X, Fu K, et al. Optimization of microstructure and geometry of hydrophobic ceramic membrane for SO2 absorption from ship exhaust[J]. AIChE Journal, 2019, 65(1): 409-420.
[24] Kong X, Qiu M, Fu K, et al. Mass-transfer characteristics and optimization of a hydrophilic ceramic membrane contactor for SO2 absorption[J]. Industrial & Engineering Chemistry Research, 2019, 58(45): 20828-20837.
[25] Shivhare M, Rao D, Kaistha N. Mass transfer studies on split-packing and single-block packing rotating packed beds[J]. Chemical Engineering and Processing, 2013, 71: 115-124.
[26] Jia Z, Chang Q, Mamat A. Preparation of nanoparticles with a semi-batch gas-liquid membrane contactor[J]. Chemical Engineering and Processing-Process Intensification, 2011, 50(8): 810-814.
[27] Mansourizadeh A, Ismail A F. Hollow fiber gas-liquid membrane contactors for acid gas capture: A review[J]. Journal of Hazardous Materials, 2009, 171(1-3): 38-53.
[28] Fang Z, Yu X, Tang W, et al. Denitration by oxidation-absorption with polypropylene hollow fiber membrane contactor[J]. Applied Energy, 2017, 206: 858-868.
[29] Wang Z P, Lun L Y, Tan Z C, et al. Simultaneous wet desulfurization and denitration by an oxidant absorbent of NaClO2/CaO2[J]. Environmental Science and Pollution Research, 2019, 26(28): 29032-29040.
[30] Lee H K, Deshwal B R, Yoo K S. Simultaneous removal of SO2 and NO by sodium chlorite solution in wetted-wall column[J]. Korean Journal of Chemical Engineering, 2005, 22(2): 208-213.

服务与反馈：

【文章下载】【加入收藏】

《膜科学与技术》编辑部地址：北京市朝阳区北三环东路19号蓝星大厦邮政编码：100029 电话：010-64426130/64433466 传真：010-80485372邮箱：mkxyjs@163.com