Chemical Industry and Engineering Progree

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Plasma modification of V-ACF for NO SCR at low temperatures

HUANG Xin1,HUANG Bichun1,ZHANG Chunju1,YE Daiqi1,LUO Cuihong2   

  1. College of Environmental Science and Engineering,South China University of Technology,Guangzhou 510006;Guangzhou Environment Protection Investment CO.,Ltd.,Guangzhou 510660
  • Online:2010-11-05 Published:2010-11-05

等离子体改性对活性炭纤维低温选择性催化还原脱除NO的影响

黄 昕1,黄碧纯1,张春菊1,叶代启1,罗翠红2   

  1. 1华南理工大学环境科学与工程学院,广东 广州 510006;2广州环保投资有限公司,广东 广州 510660

Abstract:

Viscose-activated carbon fiberV-ACFmodified by low-temperature N2 and O2 plasma with dielectric barrier dischargeDBDwas studied for low-temperature selective catalytic reductionSCRof NO. Structure of the plasma modified V-ACF was characterized by BETSEMNH3-TPD and FT-IR. Experimental results showed that the optimal surface modification time was 5 and 10 minutes for N2 and O2 plasmarespectively. The optimal reaction temperature was 100℃. Surface modification of V-ACF by low-temperature plasma technology could greatly improve the NO removal rate. V-ACF modified by N2 plasma showed higher NO removal rate than that modified by O2 plasma.

摘要:

采用介质阻挡放电(DBD)低温N2O2等离子体技术对黏胶基活性炭纤维(V-ACF)进行表面改性,运用BETSEMNH3-TPD FT-IR对催化剂进行表征,并对催化剂低温选择性催化还原(SCRNO性能进行了研究。结果表明,N2O2等离子体最佳改性时间分别为5 min10 min,最佳反应温度为100 ,低温等离子体改性能明显提高ACFNO转化率,且N2等离子体改性ACF催化效率高于O2等离子体改性ACF

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