助剂(C2H4、NH3)添加对AC/DC流光放电等离子体脱硝效果的影响

浦鹏; 刘啸; 彭亚东; 任旭婷; 周红军

doi:10.12030/j.cjee.201509022

环境工程学报

助剂(C2H4、NH3)添加对AC/DC流光放电等离子体脱硝效果的影响

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浦鹏, 刘啸, 彭亚东, 任旭婷, 周红军. 助剂(C2H4、NH3)添加对AC/DC流光放电等离子体脱硝效果的影响[J]. 环境工程学报, 2017, 11(1): 483-489. doi: 10.12030/j.cjee.201509022

引用本文:

PU Peng, LIU Xiao, PENG Yadong, REN Xuting, ZHOU Hongjun. Effect of additive (C2H4, NH3) addition on denitrification effect of AC/DC streamer discharge plasma[J]. Chinese Journal of Environmental Engineering, 2017, 11(1): 483-489. doi: 10.12030/j.cjee.201509022

Citation:

PU Peng, LIU Xiao, PENG Yadong, REN Xuting, ZHOU Hongjun. Effect of additive (C2H4, NH3) addition on denitrification effect of AC/DC streamer discharge plasma[J]. Chinese Journal of Environmental Engineering, 2017, 11(1): 483-489. doi: 10.12030/j.cjee.201509022

助剂(C2H4、NH3)添加对AC/DC流光放电等离子体脱硝效果的影响

1.
中国石油大学新能源研究院, 北京, 102249
基金项目:
中国石油大学（北京）科研基金资助（2462013YJRC001）
中图分类号: X701

Effect of additive (C2H4, NH3) addition on denitrification effect of AC/DC streamer discharge plasma

1.
Institute of New Energy, China University of Petroleum(Beijing), Beijing 102249, China
Fund Project:

摘要: 等离子体法脱硝被认为是一种非常环保有效的脱硝技术，为了探究等离子体对NOx的作用过程，选用AC/DC流光放电等离子体及模拟烟气，考察了烟气流量和NO初始浓度、添加剂的种类与含量以及SO2对等离子体脱硝的影响。结果表明：NO的脱除过程由氧化过程和还原过程同时作用，在同一功率下，NOx脱除率随流量的增加而降低，NO初始浓度对NOx脱除率无直接影响。氨的添加可以促进NOx的还原脱除，乙烯的添加可以促进NO氧化转化为NO2。烟气中SO2存在会导致NOx脱除效率降低，此时氨助剂的加入可以显著提高NOx脱除率。当NH3：SO2=2：1时，在15 W下SO2脱除率可达100%，NOx脱除率60%。
- AC/DC流光放电 /
- 等离子体 /
- 脱硝 /
- 添加剂
Abstract: The plasma method is considered an effective and environmentally friendly denitration technique. To explore the effect of plasma on NOx, AC/DC streamer discharge plasma and simulated flue gas were used, and several influencing factors were investigated, such as the flue gas flow rate, initial NO concentration, type and content of chemical additives, and the presence of SO2. The removal of NO was found to occur by oxidation and reduction simultaneously. Under the same discharge power, the De-NOx rate decreased with increasing flow rate. Meanwhile, the initial NO concentration had no direct effect on the De-NOx rate. The addition of ammonia could promote the reduction of NOx, while the addition of ethylene could promote the oxidation of NO to NO2. In the presence of sulfur dioxide, the removal efficiency of NOx decreased, but when ammonia was used as an additive, the removal rate of NOx was significantly improved. At NH3:SO2=2:1, the removal rate of SO2 reached 100%, and the removal rate of NOx was 60%.
- AC/DC streamer discharge /
- plasma /
- denitration /
- additive

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助剂(C2H4、NH3)添加对AC/DC流光放电等离子体脱硝效果的影响

1. 中国石油大学新能源研究院, 北京, 102249

收稿日期: 2015-11-03

基金项目:

中国石油大学（北京）科研基金资助（2462013YJRC001）

关键词:

摘要: 等离子体法脱硝被认为是一种非常环保有效的脱硝技术，为了探究等离子体对NOx的作用过程，选用AC/DC流光放电等离子体及模拟烟气，考察了烟气流量和NO初始浓度、添加剂的种类与含量以及SO2对等离子体脱硝的影响。结果表明：NO的脱除过程由氧化过程和还原过程同时作用，在同一功率下，NOx脱除率随流量的增加而降低，NO初始浓度对NOx脱除率无直接影响。氨的添加可以促进NOx的还原脱除，乙烯的添加可以促进NO氧化转化为NO2。烟气中SO2存在会导致NOx脱除效率降低，此时氨助剂的加入可以显著提高NOx脱除率。当NH3：SO2=2：1时，在15 W下SO2脱除率可达100%，NOx脱除率60%。

English Abstract

Effect of additive (C2H4, NH3) addition on denitrification effect of AC/DC streamer discharge plasma

1. Institute of New Energy, China University of Petroleum(Beijing), Beijing 102249, China

Received Date: 2015-11-03

Fund Project:

Keywords:

Abstract: The plasma method is considered an effective and environmentally friendly denitration technique. To explore the effect of plasma on NOx, AC/DC streamer discharge plasma and simulated flue gas were used, and several influencing factors were investigated, such as the flue gas flow rate, initial NO concentration, type and content of chemical additives, and the presence of SO2. The removal of NO was found to occur by oxidation and reduction simultaneously. Under the same discharge power, the De-NOx rate decreased with increasing flow rate. Meanwhile, the initial NO concentration had no direct effect on the De-NOx rate. The addition of ammonia could promote the reduction of NOx, while the addition of ethylene could promote the oxidation of NO to NO2. In the presence of sulfur dioxide, the removal efficiency of NOx decreased, but when ammonia was used as an additive, the removal rate of NOx was significantly improved. At NH3:SO2=2:1, the removal rate of SO2 reached 100%, and the removal rate of NOx was 60%.

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助剂(C2H4、NH3)添加对AC/DC流光放电等离子体脱硝效果的影响

Effect of additive (C2H4, NH3) addition on denitrification effect of AC/DC streamer discharge plasma

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助剂(C2H4、NH3)添加对AC/DC流光放电等离子体脱硝效果的影响

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Effect of additive (C2H4, NH3) addition on denitrification effect of AC/DC streamer discharge plasma

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