纯氧氧化结合湿法吸收对燃煤烟气脱硝的实验研究
DOI:
作者:
作者单位:

中北大学环境与安全工程学院,中北大学环境与安全工程学院

作者简介:

通讯作者:

中图分类号:

X511

基金项目:


Absorption of NOx from coal-fired flue gas with wet aueous solution combined with oxidation of NO using pure oxygen
Author:
Affiliation:

School of Environmental and Safety Engineering,

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    本文通过实验研究了氧气对模拟烟气中NO氧化率的主要影响因素,以及氢氧化钠溶液吸收法对氧化后模拟烟气中NOx的去除率。实验中首先重点研究了进口NO浓度、反应温度、氧气浓度和烟气中SO2浓度对NO氧化率的影响,在此基础上还研究了NO氧化率和碱液吸收法对烟气中NOx去除率的关系。实验结果表明在低温条件下,增大进口NO浓度、氧气浓度和氧化反应时间,均有利于增大NO氧化率,而且NO氧化率随上述参数增大起初增加显著,在达到一定值后增加趋势减缓,而烟气中SO2对NO氧化率影响较小。在氢氧化钠溶液质量浓度为6%,pH=9的吸收条件下,增加NO氧化率能促进模拟烟气的NOx去除率。

    Abstract:

    In this paper, the main factors of NO oxidation efficiency in simulated flue gas by oxygen, and the NOx removal efficiency after oxidation by sodium hydroxide solution were discussed. The inlet NO concentration,reaction temperature,O2 and SO2 concentration in flue gas were investigated in the influence of NO oxidation efficiency. In addtion,The effect of NO oxidation efficiency rate and alkaline aqueous solution on NOx remove rate was investigated.Under the condition of low temperature ,the results show that the increasing NO concentration, oxygen concentration and residence reaction time are beneficial to increase the NO oxidation efficiency .And the NO oxidation efficiency is increased significantly with the increasing the above parameters, and then increases slowly after reaching a certain value,while SO2 concentration had little effect on the NO oxidation in flue gas.The results show that when studied under conditions of mass fraction of NaOH =6% and pH=7, the incresing of NO oxidation efficiency can promote the NOx removal efficiency in simulated flue gas.

    参考文献
    相似文献
    引证文献
引用本文

王悦,李斌. 纯氧氧化结合湿法吸收对燃煤烟气脱硝的实验研究[J]. 科学技术与工程, 2019, 19(2): .
王悦 and. Absorption of NOx from coal-fired flue gas with wet aueous solution combined with oxidation of NO using pure oxygen[J]. Science Technology and Engineering,2019,19(2).

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2018-06-23
  • 最后修改日期:2018-08-11
  • 录用日期:2018-08-28
  • 在线发布日期: 2019-01-23
  • 出版日期:
×
律回春渐,新元肇启|《科学技术与工程》编辑部恭祝新岁!
亟待确认版面费归属稿件,敬请作者关注