| NO2和O3氧化柴油机微粒的对比试验研究 |
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| 引用本文： | 温佐华,杨国华,刘大海.NO2和O3氧化柴油机微粒的对比试验研究[J].机电工程,2009,26(6):104-106. |
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| 作者姓名： | 温佐华 杨国华 刘大海 |
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| 作者单位： | 宁波大学,海运学院,浙江,宁波,315211 |
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| 摘 要： | 柴油机微粒物质（PM）后处理最有效的措施是微粒捕集器（DPF）技术，而DPF技术的关键点在于其再生。为了降低DPF的再生温度，首先采用玻璃纤维无胶滤筒捕集PM，然后在管式反应器内加入氧化性气体氧化PM，并通过试验对比研究了NO2和O3对PM的氧化效果。研究结果表明，NO，氧化PM的起燃温度为250℃，而O3在155cc时开始明显氧化PM，适宜温度为200℃～240oC；提高了臭氧或NO2气体浓度，明显加快了氧化速度；O3可以在低温下快速氧化PM，且不需任何催化剂。
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| 关 键 词： | 柴油机微粒物质 臭氧 NO2 氧化 微粒捕集器 |
Experiment on contrast O3 to NO2 oxidation of diesel particulate matter |
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| WEN Zuo-hua,YANG Guo-hua,LIU Da-hai.Experiment on contrast O3 to NO2 oxidation of diesel particulate matter[J].Mechanical & Electrical Engineering Magazine,2009,26(6):104-106. |
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| Authors: | WEN Zuo-hua YANG Guo-hua LIU Da-hai |
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| Affiliation: | ( College of Maritime, Ningbo University, Ningbo 315211, China ) |
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| Abstract: | The most effective measure of diesel particulate matter（PM） post-processing is the diesel particulate filter（DPF） technology, and the key of DPF lies in its regeneration. In order to reduce the regeneration temperature of DPF, an experimental study was carried out by two steps. The PM from diesel engine was captured by glass fiber filter firstly. Then oxidation of PM was carried by oxidizing gas in a tube furnace. The experimental study on contrast ozone to NO2 oxidation of PM was done. The resuits indicate that the oxidation reaction between NO2 and PM start combustion at 250 ℃ , but ozone and PM start obviously at 155 ℃ , the optimal oxidation reaction temperature window is between 200 ℃ and 240 ℃. It gets the higher ozone or NO2 concentration and the faster oxidation reaction. The ozone can oxide PM fast under no any catalyst at low-temperature. |
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| Keywords: | NO2 |
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