化工学报 ›› 2015, Vol. 66 ›› Issue (7): 2636-2642.DOI: 10.11949/j.issn.0438-1157.20141920

• 能源和环境工程 • 上一篇    下一篇

抗坏血酸对Fe2+/H2O2体系氧化NO的促进作用

赵海谦1,2, 高继慧1, 周伟1, 王忠华2, 吴少华1   

  1. 1 哈尔滨工业大学能源科学与工程学院, 黑龙江 哈尔滨150001;
    2 东北石油大学土木建筑工程学院, 黑龙江 大庆 163318
  • 收稿日期:2014-12-26 修回日期:2015-04-08 出版日期:2015-07-05 发布日期:2015-07-05
  • 通讯作者: 高继慧
  • 基金资助:

    国家自然科学基金项目(51176043,91434134);黑龙江省青年科学基金项目(QC2014C047)。

Promotion of ascorbic acid on oxidation of NO by Fe2+/H2O2 system

ZHAO Haiqian1,2, GAO Jihui1, ZHOU Wei1, WANG Zhonghua2, WU Shaohua1   

  1. 1 College of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China;
    2 Institute of Civil Engineering & Architecture, Northeast Petroleum University, Daqing 163318, Heilongjiang, China
  • Received:2014-12-26 Revised:2015-04-08 Online:2015-07-05 Published:2015-07-05
  • Supported by:

    supported by the National Natural Science Foundation of China (51176043, 91434134) and the Heilongjiang Province Science Funds for Youths (QC2014C047).

摘要:

采用实验方法研究了低成本环境友好型添加剂抗坏血酸(AA)对Fe2+/H2O2体系氧化NO气体及其对体系内H2O2分解的影响,分析了AA对体系氧化NO能力及H2O2分解的影响机制。研究结果表明:AA通过加速Fe3+向Fe2+的转化而促进Fe2+/H2O2体系对NO的氧化。[AA]0:[Fe2+]0对体系氧化NO的能力及H2O2的分解具有重要影响。综合考虑NO氧化脱除量及H2O2消耗量,合理的[AA]0:[Fe2+]0为1/3~1/2。AA的分次添加方式可大幅度提升体系氧化NO气体的能力。研究结果可望为发展基于H2O2为氧化剂的烟气NO绿色氧化技术提供理论基础。

关键词: Fe2+/H2O2体系, 抗坏血酸, 羟基自由基, 氧化, 一氧化氮

Abstract:

The influences of ascorbic acid (AA), which is a low cost and eco-friendly additive agent, on NO oxidation and H2O2 decomposition in Fe2+/H2O2 system were experimentally studied and their reaction mechanisms analyzed. The results demonstrated that AA can improve oxidation of Fe2+/H2O2 system for NO through accelerating the reduction from Fe3+ to Fe2+. [AA]0:[Fe2+]0 ratio has important effect on oxidization ability and H2O2 decomposition of the system. Taken together the amounts of NO oxidized and H2O2 decomposition, the appropriate ratio of [AA]0:[Fe2+]0 should be between 1/3 to 1/2. Batch add of AA can greatly enhance the oxidation ability of Fe2+/H2O2 system for NO. These results would be a theoretical basis for the development of NO oxidation technology by H2O2.

Key words: Fe2+/H2O2 system, ascorbic acid, hydroxyl radical, oxidation, nitric oxide

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