| 煤粉再燃对锅炉CO及N2O排放控制的试验研究 |
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| 引用本文： | 董若凌,周俊虎,杨卫娟,周志军,岑可法. 煤粉再燃对锅炉CO及N2O排放控制的试验研究[J]. 环境科学学报, 2005, 25(6): 734-737 |
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| 作者姓名： | 董若凌 周俊虎 杨卫娟 周志军 岑可法 |
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| 作者单位： | 能源洁净利用和环境工程教育部重点实验室,浙江大学热能工程研究所,杭州,310027 |
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| 摘 要： | 结合CO和N2O的生成及分解机理，利用2．11 WM燃煤半工业炉进行了煤粉再燃试验，研究了煤粉再燃技术对锅炉CO和N2O排放的控制效果．试验发现，随再燃比的增加和再燃区过量空气系数的减少，CO和N2O的脱除效果增强；过高或过低的一级燃烧区过量空气系数均不利于CO的脱除；N2O的脱除随一级燃烧区过量空气系数的增大而增大．煤粉炉应用煤粉再燃技术可以实现CO和N2O的同时脱除，因而可开发该技术在燃煤锅炉中的多种污染物联合控制能力。
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| 关 键 词： | 煤粉再燃技术 CO N2O |
| 文章编号： | 0253-2468(2005)06-0734-04 |
| 收稿时间： | 2004-09-06 |
| 修稿时间： | 2004-09-06 |
An experimental study on controlling CO and N2O emission of boiler through pulverized coal reburn |
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| DONG Ruoling,ZHOU Junhu,YANG Weijuan,ZHOU Zhijun and CEN Kefa. An experimental study on controlling CO and N2O emission of boiler through pulverized coal reburn[J]. Acta Scientiae Circumstantiae, 2005, 25(6): 734-737 |
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| Authors: | DONG Ruoling ZHOU Junhu YANG Weijuan ZHOU Zhijun CEN Kefa |
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| Affiliation: | Clean Energy and Environment Engineering Key Laboratory of Ministry of Education, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Clean Energy and Environment Engineering Key Laboratory of Ministry of Education, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Clean Energy and Environment Engineering Key Laboratory of Ministry of Education, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027,Clean Energy and Environment Engineering Key Laboratory of Ministry of Education, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027 and Clean Energy and Environment Engineering Key Laboratory of Ministry of Education, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027 |
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| Abstract: | The reductions of CO and N_2O emissions through pulverized coal reburn were investigated on a 2.11 MW pilot-scale coal fired boiler. It is found that CO and N_2O reductions increased with increase in the reburn fuel fraction and decrease in the reburn zone excess air ratio. The N_2O reduction efficiency increased as the excess air ratio increases in the primary combustion zone. Since the pulverized coal reburn technique can simultaneously reduce CO and N_2O emissions, it is possible to further develop this technique to control multiple pollutants from coal-fired boilers. |
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| Keywords: | pulverized coal reburn CO N_2O |
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