Kinetics of the removal of NO using PMS-Fe(II) system activated by high temperature and Fe(II) ions in the multi-stage stirred bubble reactor
Kinetics of the removal of NO using PMS-Fe(II) system activated by high temperature and Fe(II) ions in the multi-stage stirred bubble reactor
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多级搅拌气泡反应器中高温和Fe(II)离子激活PMS-Fe(II)体系去除NO的动力学
DOI：
10.1016/j.cej.2019.122144
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发表时间：
2020
影响因子：
15.1
通讯作者：
Hu xiao min
中科院分区：
文献类型：
--
作者：
Chen xiao jiao;Hu xiao min
在多级搅拌泡反应器中，研究了Fe （II）离子协同活化PMS去除模拟烟气中一氧化氮（NO）的动力学。新型反应器采用多级设计，配备多搅拌器，提高了液中气体含量，促进了气液传质过程。本研究对NO脱除反应动力学进行了全面深入的探讨。为验证动力学模型，考察了PMS初始浓度和反应温度对NO脱除过程的影响。结果具有良好的信度（0.979、0.98、0.963和0.963），表明模拟烟气中NO的去除过程为伪一级反应。值得注意的是，我们不仅研究了化学吸收反应的扩散系数、传质系数、反应速率常数、增强因子等基本动力学参数，还首次研究了液相反应利用效率、液相溶剂临界浓度方程、界面温度升高等必不可少的动力学参数。液相反应利用效率接近于0，液相溶剂临界浓度方程为8.291 ~ 8.732 m m ol / l。界面温度的轻微升高不足以影响整个反应过程。必不可少的动力学参数结果为脱硝技术应用于工业规模实验提供了系统、全面的技术参数。
In this study, the kinetics of on nitric oxide (NO) removal from simulated flue gas using peroxymonosulfate (PMS) with synergic activation of Fe (II) ions and high temperature in a multi-stage stirred bubble reactor were investigated. The new reactor was designed with multiple stages and equipped with multiple agitators, which can increase the gas content in liquid and promote the gas-liquid mass transfer process. In this research we discussed the kinetics of NO removal reaction comprehensively and deeply. To confirm the kinetic model, the effects of initial PMS concentration and reaction temperature of the NO removal process were investigated. The results, with good reliability (0.979, 0.98, 0.963 and 0.963), showed that the removal process of NO in simulated flue gas was considered a pseudo first-order reaction. It worth noting that we have not only investigated the elementary kinetic parameters such as the diffusion coefficient, mass transfer coefficient, reaction rate constant, and enhancement factor of chemical absorption reaction, but also examined other indispensable kinetic parameters such as liquid-phase reaction utilization efficiency, critical concentration equation of liquid solvent and the increase of interface temperature for the first time. The result of liquid-phase reaction utilization efficiency was close to 0 and critical concentration equation of liquid solvent was 8.291–8.732 m m o l/L. And the interface temperature slight increase was not enough to affect the entire reaction process. The indispensable kinetic parameters results provide systematic and comprehensive technical parameters to enable the application of NO removal techniques to industrial scale experiments.
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影响因子：
11.4
作者：
Yi Zhao;Yinghui Han;Tianzhong Ma;Tianxiang Guo
通讯作者：
Yi Zhao;Yinghui Han;Tianzhong Ma;Tianxiang Guo
DOI：
10.1016/b978-0-08-026250-5.50023-x
发表时间：
1981
期刊：
--
影响因子：
--
作者：
P. V. Danckwerts;A. Gillham
通讯作者：
P. V. Danckwerts;A. Gillham
DOI：
--
发表时间：
1969
期刊：
--
影响因子：
--
作者：
J. Welty;C. E. Wicks;R. Wilson
通讯作者：
J. Welty;C. E. Wicks;R. Wilson
影响因子：
3.7
作者：
Yangxian Liu;J. Pan;Qian Wang
通讯作者：
Yangxian Liu;J. Pan;Qian Wang
影响因子：
8.8
作者：
K. C. Pillai;Sang J Chung;Thasan Raju;I. Moon
通讯作者：
K. C. Pillai;Sang J Chung;Thasan Raju;I. Moon