| 工业废气中NOx处理工艺研究 |
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| 引用本文： | 徐媛媛,刘华彦,李玉芳,陈银飞. 工业废气中NOx处理工艺研究[J]. 化工生产与技术, 2011, 18(3): 50-53,61,72. DOI: 10.3969/j.issn.1006-6829.2011.03.015 |
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| 作者姓名： | 徐媛媛 刘华彦 李玉芳 陈银飞 |
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| 作者单位： | 浙江工业大学化学工程与材料学院，绿色化学合成国家重点实验室培育基地，杭州310014 |
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| 摘 要： | 针对工业NOx废气氧化度低、氧气及水汽含量高的特点,提出以高硅Na-ZSM-5分子筛为催化剂的催化氧化-碱液吸收-还原性碱液吸收的组合工艺脱除NOx的方法,考察了空时对NO氧化的影响,NOx氧化度、碱液含量、空时对碱液吸收以及还原液种类、空时对还原性碱液吸收的影响.结果表明,空时为0.5 s时,干气下NOx氧化度达到6...
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| 关 键 词： | NOx NO催化氧化 Na-ZSM-5分子筛 碱液吸收 |
Study on Process of Nox Removal from Industrial Gas |
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| Xu Yuanyuan,Liu Huayan,Li Yufang,Chen Yinfei. Study on Process of Nox Removal from Industrial Gas[J]. Chemical Production and Technology, 2011, 18(3): 50-53,61,72. DOI: 10.3969/j.issn.1006-6829.2011.03.015 |
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| Authors: | Xu Yuanyuan Liu Huayan Li Yufang Chen Yinfei |
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| Affiliation: | (College of Chemical Engineering and Materials Science,Zhejiang University of Technology,State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology,Hangzhou 310014) |
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| Abstract: | Catalytic oxidation-alkali adsorption process-reductive alkali adsorption process for NOx removal was proposed according to the feature of low oxidation degree,high content of oxygen and vapor of NOx.The effects of space time on NO oxidation degree;inlet oxidation degree of NOx,concentration of alkali solution,space time on alkali adsorption process were investigated,and the NOx removal efficiency in different space time and different reductive alkali solutions were also discussed.The results showed that NO oxidation degree reached 65% in dry gas and 56% in humid gas when space time was 0.5 s;the NOx removal efficiency was the best when concentration of alkali solution was 1% and oxidation degree of NOx was 60%,therefore,the NOx removal efficiency increases gradually with the increase of space time.Sodium thiosulfate solution was the best one to NOx removal,which did not change significantly with the increase of space time. |
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| Keywords: | NOx NO catalytic oxidation Na-ZSM-5 zeolite alkali adsorption process |
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