| NOx在高岭土表面非均相转化的影响因素 |
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| 引用本文： | 焦坤灵, 鲁尚发, 张连科, 李玉梅, 武文斐. NOx在高岭土表面非均相转化的影响因素[J]. 环境工程学报, 2016, 10(10): 5821-5826. doi: 10.12030/j.cjee.201601028 |
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| 作者姓名： | 焦坤灵 鲁尚发 张连科 李玉梅 武文斐 |
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| 作者单位： | 1. 内蒙古科技大学能源与环境学院, 包头 014010; 2. 内蒙古科技大学内蒙古自治区白云鄂博矿多金属资源综合利用重点实验室, 包头 014010 |
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| 基金项目： | 内蒙古自治区自然科学基金资助项目（2014MS0219，2015MS0408） |
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| 摘 要： | 利用自制气溶胶反应器通过实验研究了不同相对湿度（RH）、光照对NOx在高岭土表面的非均相转化过程和NO3-生成量的影响，探讨了SO2、NH3及SO2/NH3共存对NOx转化的影响。结果表明：随着RH的增加，高岭土表面NOx转化量及NO3-生成量均显著降低，其中NOx转化量最大降幅可达433%；光照增加对高岭土表面NOx的转化及NO3-的生成有促进作用，NOx转化量和NO3-生成量的相对增幅最高可分别达到167%和200%；SO2、NH3分别存在及共存时会促进NOx在高岭土表面的转化，其中NH3存在时对NOx转化和NO3-生成的协同作用最为显著。
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| 关 键 词： | 气溶胶反应器 NOx 高岭土 非均相转化 |
| 收稿时间： | 2016-03-17 |
Influence factors of NOx heterogeneous conversion on the surface of kaolin |
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| JIAO Kunling, LU Shangfa, ZHANG Lianke, LI Yumei, WU Wenfei. Influence factors of NOx heterogeneous conversion on the surface of kaolin[J]. Chinese Journal of Environmental Engineering, 2016, 10(10): 5821-5826. doi: 10.12030/j.cjee.201601028 |
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| Authors: | JIAO Kunling LU Shangfa ZHANG Lianke LI Yumei WU Wenfei |
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| Affiliation: | 1. School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China; 2. State Key Laboratory of Integrated Exploitation of Bayanobo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China |
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| Abstract: | A self-made aerosol reactor was used to study the NOx heterogeneous conversion over a kaolin surface,under different relative humidity (RH) and light intensity conditions.The NOx conversion and NO3- formation during the reaction were investigated when there was SO2 and/or NH3 in the atmosphere.For increasing RH,the amounts of NOx converted and NO3- generated were reduced significantly on a kaolin surface,and the maximum drop observed in NOx conversion reached 433%.The light intensity is a promotional factor in NOx conversion and NO3- generation,and the maximum increment of NOx conversion and NO3- generation could reach 167% and 200%,respectively.Furthermore,the heterogeneous conversion of NOx was accelerated in the presence of SO2 and/or NH3 on the kaolin surface,but NH3 resulted in a better performance. |
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| Keywords: | aerosol reactor NOx kaolin heterogeneous conversion |
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