Experimental research on removing NO by hydrodynamic cavitation and ClO2

被引：0
|
作者：
Yang J. [1 ,2 ]
Song L. [1 ]
Sui H. [1 ]
Pan X. [1 ,3 ]
机构：
[1] Marine Engineering College, Dalian Maritime University, Liaoning, Dalian
[2] Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, 45221-0012, OH
[3] School of Electronic and Information Engineering, Guangdong Ocean University, Guangdong, Zhanjiang
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2023年 / 51卷 / 04期
关键词：
ClO[!sub]2[!/sub; exhaust; hydrodynamic cavitation; removing NO; ship;
D O I：
10.13245/j.hust.221005
中图分类号：
学科分类号：
摘要：
A denitration method of hydrodynamic cavitation and chlorine dioxide (ClO2) was proposed，and experimental research on removing nitric oxide (NO) was carried out．The effects of solution pH，NO concentration，and gas flow rate on denitration were studied for the first time．Research results show that the denitration effect is the best when the solution pH is 3，and the duration of the high denitration rate is 140 s．When the NO volume fraction increases from 0.075% to 0.150%，and the gas flow rate increases from 1.0 L/min to 1.6 L/min，the denitration efficiency could reach more than 80%．To solve the problem existing in the circulation denitration method，a non-circulation denitration method was developed，and relevant experimental research results indicate that the denitration efficiency of the non-circulation method could stabilize above 80%．The solution after denitration was analyzed by ion chromatography，and the results show that the anion containing nitrogen atoms in the solution is only NO-3. © 2023 Huazhong University of Science and Technology. All rights reserved.
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页码：136 / 141
页数：5
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共 25 条
  • [1] DENG J, WANG X, WEI Z, A review of NO<sub>x</sub> and SO<sub>x</sub> emission reduction technologies for marine diesel engines and the potential evaluation of liquefied natural gas fuelled vessels[J], Science of the Total Environment, 766, (2021)
  • [2] YANG S，, PAN X，, HAN Z, Removal of NO<sub>x</sub> and SO<sub>2</sub> from simulated ship emissions using wet scrubbing based on seawater electrolysis technology[J], Chemical Engineering Journal, 331, pp. 8-15, (2018)
  • [3] ADEWUYI Y G, SAKYI N Y, KHAN M A．, Simultaneous removal of NO and SO<sub>2</sub> from flue gas by combined heat and Fe<sup>2+</sup> activated aqueous persulfate solutions[J], Chemosphere, 193, pp. 1216-1225, (2018)
  • [4] PARK H W, CHOI S, PARK D W．, Simultaneous treatment of NO and SO<sub>2</sub> with aqueous NaClO<sub>2</sub> solution in a wet scrubber combined with a plasma electrostatic precipitator[J], Journal of Hazardous Materials, 285, pp. 117-126, (2015)
  • [5] DU C，, YI H，, TANG X, Desulfurization and denitrification experiments in SDA system：a new high-efficient semi-dry process by NaClO<sub>2</sub>[J], Separation and Purification Technology, 230, (2020)
  • [6] LIU Y, WANG Y, YIN Y, Oxidation removal of nitric oxide from flue gas using an ultraviolet light and heat coactivated oxone system[J], Energy & Fuels, 32, 2, pp. 1999-2008, (2018)
  • [7] YAN J, ZHOU F, ZHOU Y, Wet oxidation and absorption procedure for NO<sub>x</sub> removal[J], Environmental Technology & Innovation, 11, pp. 41-48, (2018)
  • [8] FANG P，CEN C，, TANG Z, Simultaneous removal of SO<sub>2</sub> and NO<sub>x</sub> by wet scrubbing using urea solution[J], Chemical Engineering Journal, 168, 1, pp. 52-59, (2011)
  • [9] HULTeN A H，, NILSSON P，, SAMUELSSON M, First evaluation of a multicomponent flue gas cleaning concept using chlorine dioxide gas-experiments on chemistry and process performance[J], Fuel, 210, pp. 885-891, (2017)
  • [10] JIN D S，, DESHWAL B R，, PARK Y S, Simultaneous removal of SO<sub>2</sub> and NO by wet scrubbing using aqueous chlorine dioxide solution[J], Journal of Hazardous Materials, 135, 1-3, pp. 412-417, (2006)
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