| 停留时间对微细化煤焦再燃还原NO效率的影响 |
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| 引用本文： | 刘忠,阎维平,赵莉,宋立民.停留时间对微细化煤焦再燃还原NO效率的影响[J].燃烧科学与技术,2007,13(5):398-402. |
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| 作者姓名： | 刘忠 阎维平 赵莉 宋立民 |
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| 作者单位： | 1. 华北电力大学环境科学与工程学院,保定,071003
2. 华北电力大学能源与动力工程学院,保定,071003 |
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| 基金项目： | 国家电力公司资助项目;华北电力大学校科研和教改项目 |
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| 摘 要： | 以4种细度的混煤(烟煤与褐煤)煤焦作为再燃燃料,用N_2、O_2、CO_2和NO配制模拟烟气,在1300℃的立式管式携带炉中,对停留时间与再燃还原NO效率的关系进行了实验研究,分析了停留时间对再燃还原NO效率的影响机制。结果表明,随着再燃停留时间的延长,NO还原效率增大;煤焦再燃还原NO的适宜停留时间约为0.8～1.0s.
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| 关 键 词： | 煤焦 再燃 停留时间 立式管式携带炉 |
| 文章编号： | 1006-8740（2007）05-0398-05 |
| 收稿时间： | 2006-11-28 |
| 修稿时间： | 2006年11月28 |
Effect of The Residence Time on Achieving NO Reduction with Micronized Coal Char Reburning |
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| LIU Zhong,YAN Wei-ping,ZHAO Li,SONG Li-min.Effect of The Residence Time on Achieving NO Reduction with Micronized Coal Char Reburning[J].Journal of Combustion Science and Technology,2007,13(5):398-402. |
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| Authors: | LIU Zhong YAN Wei-ping ZHAO Li SONG Li-min |
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| Affiliation: | 1. School of Environmental Science and Engineering, Noah China Electric Power University, Baoding 071003, China; 2. School of Energy and Power Engineering, Noah China Electric Power University, Baoding 071003, China |
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| Abstract: | The effect of residence time on reduction efficiency of NO was studied in entrained flow reactor in which N_2,O_2,CO_2, NO was mixed into simulated flue gas and the reburning fuel was four mixed coal made from micronized coal powder mixture of bi- tuminous coal and lignite.The reaction mechanism of NO reduced by coal char with different residence time was analyzed.With the prolonging of residence time,the reduction efficiency of NO increases.The optimal residence time will be in the range of 0.8-1.0s when coal char is used to reduce NO. |
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| Keywords: | NO |
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