臭氧结合钙基湿法脱硫脱硝的模拟分析

doi:10.11930.2015.7.129

中国电力 ›› 2015, Vol. 48 ›› Issue (7): 129-133.DOI: 10.11930.2015.7.129

臭氧结合钙基湿法脱硫脱硝的模拟分析

张相¹，杨丽¹，蒋红²，王智化³，周俊虎³

1．浙江百能科技有限公司，浙江杭州 310012;
2. 新疆天富能源股份有限公司，新疆石河子 832002;
3. 浙江大学能源清洁利用国家重点实验室，浙江杭州 310027）

收稿日期:2015-02-18 出版日期:2015-07-25 发布日期:2015-11-26
作者简介:张相（1981—），男，陕西西安人，博士，从事燃煤烟气污染物治理研究。E-mail: zhangx@pyneo.com

Simulation Analysis of Desulfurization and Denitration based on the Method of Ozone Combined with Wet Calcium Based Scrubbing

ZHANG Xiang¹, YANG Li¹, JIANG Hong², WANG Zhihua³, ZHOU Junhu³

1. Pyneo Co., Ltd., Hangzhou 310012, China;
2. Xinjiang Tianfu Thermoelectric Co., Ltd., Shihezi 832002, China;3. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China

Received:2015-02-18 Online:2015-07-25 Published:2015-11-26

摘要/Abstract

摘要： 为探讨钙基湿法脱硫系统对高价态氮氧化物的脱除能力，从热力学和动力学的角度，对CaSO3协同吸收NO2与SO2进行了反应机理与吸收特性的模拟。构建了吸收反应的计算方法，分析了溶液pH值对传质速率的影响，计算得出吸收烟气体积与吸收浆液体积之比的临界值，模拟了不同NO2分压下NO2在Na2SO3和CaSO3溶液中的传质速率。通过数值模拟和试验测量进行分析结果的校验，得到了较好的一致性。根据计算和试验结果，Na2SO3溶液对NO2的吸收效率随pH值的下降而减少，而CaSO3对NO2的吸收效率随pH值变化不明显。研究结果对臭氧结合钙基湿法协同脱硫脱硝技术的研究发展及工业应用具有一定的参考价值。

关键词: 同时脱硫脱硝, 数值模拟, NO2, SO2, CaSO3吸收特性, 传质速率

Abstract: To explore the removal effect of high nitrogen oxides on wet calcium based desulfurization system, the reaction mechanism and absorption properties of NO2 and SO2 simultaneous absorption by CaSO3 is conducted based on the point of thermodynamics and kinetics. The computing approach of absorption reaction is established and the effect of pH value on mass transfer rate is analyzed. By adopting this approach, the critical ratio of absorbed gas volume to solution volume is calculated, and the mass transfer rate is simulated in Na2SO3 and CaSO3 solutions with different NO2 gas partial pressures. The simulation results are verified against the testing results, which exhibit great consistency. According to the computing and testing results, the absorption rate of NO2 in Na2SO3 solution declines with the decrease of pH value, while no obvious change in CaSO3 solution is observed. These results can provide reference for the development and industrial application of ozone method combined with wet calcium based scrubbing.

Key words: simultaneous desulfurization and denitration, numerical simulation, NO2, SO2, CaSO3 absorption property, mass transfer rate

中图分类号:

TK229.6
X51

张相，杨丽，蒋红，王智化，周俊虎. 臭氧结合钙基湿法脱硫脱硝的模拟分析[J]. 中国电力, 2015, 48(7): 129-133.

ZHANG Xiang, YANG Li, JIANG Hong, WANG Zhihua, ZHOU Junhu. Simulation Analysis of Desulfurization and Denitration based on the Method of Ozone Combined with Wet Calcium Based Scrubbing[J]. journal1, 2015, 48(7): 129-133.

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://www.electricpower.com.cn/CN/10.11930.2015.7.129

https://www.electricpower.com.cn/CN/Y2015/V48/I7/129

参考文献

[1] WANG Z, ZHOU J, ZHU Y, et al. Simultaneous removal of NOx, SO2 and Hg in nitrogen flow in a narrow reactor by ozone injection: Experimental results[J]. Fuel Processing Technology, 2007, 88(8): 817-823.
[2] MOK YS, Absorption-reduction technique assisted by ozone injection and sodium sulfide for NOx removal from exhaust gas[J]. Chemical Engineering Journal, 2006, 118(1-2): 63-67.
[3] MOK YS, LEE H-J, Removal of sulfur dioxide and nitrogen oxides by using ozone injection and absorption-reduction technique [J]. Fuel Processing Technology, 2006, 87(7): 591-597.
[4] WANG Z, ZHOU J, FAN J, et al. Direct numerical simulation of ozone injection technology for NOx control in flue gas[J]. Energy Fuels, 2006. 20(6): 2432-2438.
[5] WANG Z H, ZHANG X, ZHOU Z J, et al. Effect of additive agents on the simultaneous absorption of NO2 and SO2 in the calcium sulfite slurry[J]. Energy Fuels, 2012, 26(9): 5583-5589.
[6] 李娟娟，江斌，姜艳艳，等． O3/NaClO气液相氧化吸收剂同时脱硫脱硝试验研究[J]. 中国电力，2014，47（12）：156-160.
LI Juanjuan, JIANG Bin, JIANG Yanyan, et al． Experimental research on simultaneous desulfurization and denitrification by O3/NaClO gas-liquid phase oxidation[J]. Electric Power, 2014, 47(12): 156-160.
[7] 姜树栋，周俊虎，王智化，等. O3液相氧化脱除SO2试验研究[J]. 中国电机工程学报，2008，32（28）：57－60．
JIANG Shudong, ZHOU Junhu, WANG Zhihua, et al. Experiment research for the removal of SO2 in solution by ozone oxidation [J]. Proceedings of the CSEE, 2008, 32(28): 57-60．
[8] KAMEOKA Y, PIGFORD RL. Absorption of nitrogen dioxide into water, sulfuric acid, sodium hydroxide, and alkaline sodium sulfite aqueous solutions[J]. Industrial & Engineering Chemistry Fundamentals, 1977, 16(1): 163-169.
[9] TAKEUCHI H, ANDO M, KIZAWA N. Absorption of nitrogen oxides in aqueous sodium sulfite and bisulfite solutions[J].Industrial & Engineering Chemistry Process Design and Development, 1977, 16(3): 303-308.
[10] CLIFTON CL, ALTSTEIN N, HUIE RE. Rate constant for the reaction of nitrogen dioxide with sulfur(IV) over the pH range 5.3-13[J]. Environmental Science & Technology, 1988, 22(5): 586-589.
[11] SHEN CH, ROCHELLE GT. Nitrogen dioxide absorption and sulfite oxidation in aqueous sulfite[J]. Environmental Science & Technology, 1998, 32(13): 1994-2003.
[12] TURSIC J, GRGIC I. Influence of NO2 on S(IV) oxidation in aqueous suspensions of aerosol particles from two different origins[J]. Atmospheric Environment, 2001, 35(22): 3897-3904.
[13] CHEN L, LIN J-W, YANG C-L. Absorption of NO2 in a packed tower with Na2SO3 aqueous solution[J]. Environmental Progress, 2002, 21(4): 225-230.
[14] Huang L, Dang Y. Removal of SO2 and NOx by pulsed corona combined with in situ Ca(OH)2 absorption [J]. Chinese Journal of Chemical Engineering, 2011, 19(3): 518-522.
[15] Rochelle GT, King CJ. The effect of additives on mass transfer in CaCO3 or CaO slurry scrubbing of SO2 from waste gases[J]. Industrial & Engineering Chemistry Fundamentals, 1977, 16(1): 67-75.
[16] SANDER R. Compilation of Henry’s law constants for inorganic and organic species of potential importance in environmental chemistry[C]// Air Chemistry Department Max-Planck Institute of Chemistry, Hamburg, 1999.

臭氧结合钙基湿法脱硫脱硝的模拟分析

Simulation Analysis of Desulfurization and Denitration based on the Method of Ozone Combined with Wet Calcium Based Scrubbing

PDF (PC)

可视化

被引次数

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

[1]	张顺, 王振国, 姜文东, 徐枫, 段忠东. 特高压输电塔龙卷风荷载特性的数值模拟[J]. 中国电力, 2023, 56(10): 153-163.
[2]	刘周斌, 朱涛, 姜巍, 张晓波, 王炯耿, 管茜茜, 张秋实, 赵庆良. 储能锂离子电池包冷却系统的数值模拟与结构优化[J]. 中国电力, 2023, 56(10): 202-210.
[3]	潘晓伟, 彭烁, 李硕, 周贤, 王长军, 刘峻, 王瑞元. 余热锅炉烟气低温余热回收塔流场均匀性研究[J]. 中国电力, 2022, 55(3): 159-166.
[4]	雷嗣远, 李海浩, 李乐田, 倪贵东, 孔凡海, 吴国勋, 卞子君. SCR脱硝低负荷投运烟气调温旁路改造设计[J]. 中国电力, 2019, 52(9): 179-184.
[5]	陈海杰, 马务, 刘贡祎, 高攀. W火焰锅炉SNCR脱硝及其对SCR入口流场的影响[J]. 中国电力, 2019, 52(7): 146-153.
[6]	闫俊伏, 赵学斌. SCR催化剂的磨损试验与数值模拟研究[J]. 中国电力, 2019, 52(5): 170-175.
[7]	肖育军, 邹毅辉, 李彩亭, 周雪斌. SCR系统结构模型与数值模型的适用性分析[J]. 中国电力, 2019, 52(3): 146-152,160.
[8]	刘含笑, 陈招妹, 郭高飞, 王剑波, 崔盈, 孟银灿, 刘美玲. 烟气脱汞活性炭干粉喷射实验及喷射效果数值模拟[J]. 中国电力, 2019, 52(10): 138-143,170.
[9]	佘晓利, 潘卫国, 王程瑶, 倪迎春, 秦岭. 脱硫废水旁路塔雾化蒸发数值模拟[J]. 中国电力, 2019, 52(1): 129-136.
[10]	周玲妹, 张冠军, 朱宪然, 李皓宇, 焦开明. 600 MW机组锅炉掺烧劣质煤技术经济性研究[J]. 中国电力, 2018, 51(9): 1-7.
[11]	雷鉴琦. 降低燃煤机组SCR脱硝系统催化剂磨损的流场优化[J]. 中国电力, 2018, 51(7): 152-156,169.
[12]	杨来顺, 徐明海, 陈秋实. 管式除雾器开孔对除雾性能影响的数值模拟研究[J]. 中国电力, 2018, 51(7): 178-184.
[13]	叶侠丰, 丁红蕾, 潘卫国, 潘衍行. 带拓展面椭圆管束的换热、积灰及磨损特性研究[J]. 中国电力, 2018, 51(6): 26-32.
[14]	翁卫国, 孙建国, 李钦武, 周灿, 蒋善行. 脱硫废水零排放系统关键参数数值模拟研究[J]. 中国电力, 2018, 51(6): 42-47.
[15]	邱桂芝, 张志刚, 宋寅, 郭婷婷, 王海刚, 贾嘉, 王鹤麒. 管束式除雾器结构优化数值模拟及高效除雾器研制[J]. 中国电力, 2018, 51(5): 134-140.

模态框（Modal）标题

臭氧结合钙基湿法脱硫脱硝的模拟分析

Simulation Analysis of Desulfurization and Denitration based on the Method of Ozone Combined with Wet Calcium Based Scrubbing

PDF (PC)

可视化

被引次数

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