JIANG Ye1;GAO Xiang2;WU Wei-hong2;ZHANG Yong-xin2(1.College of Pipeline and Civil Engineering;

• 1:China University of Petroleum
• 2:Qingdao 266580
• 3:China
• 4: 2.State Key Laboratory of Clean Energy Utilization(Zhejiang University)

Abstract：

V2O5/TiO2 catalysts were prepared by impregnation method.Effects of operation conditions on their performance for selective catalytic reduction of NO in flue gas were determined.The results show that the NO removal efficiency is high and the NO conversion reaches from 92.7 percent to 98.8 percent at the typical SCR reaction temperature(300 ℃ to 400 ℃).When the reaction temperature exceed 400 ℃,N2O appear,thereby decreasing the catalysts selectivity.The effect of space velocity on NO removal efficiency is related to reaction temperature.The molar ratio of NH3/NO plays an important part in NO removal and NH3 slip.The adaptability of catalysts to NO concentration is wide.O2 is the main oxygen source for active sites and has no influence on NO removal efficiency when its volume fraction exceed 2 percent.

Key Words： flue gas denitrification;selective catalytic reduction;V2O5/TiO2 catalysts;operation condition

Abstract:

Keywords:

Foundation: 浙江省重大科技专项资助项目(2011C13020);; 山东省自然科学基金资助项目(ZR2011EEQ004);; 中央高校基本科研业务费专项资金资助项目(12CX06076A)

Authors: JIANG Ye1;GAO Xiang2;WU Wei-hong2;ZHANG Yong-xin2(1.College of Pipeline and Civil Engineering;

DOI: 10.13226/j.issn.1006-6772.2013.02.030

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