Title :
New Development of Fe/TiO2 Catalyst for Selective Reduction of NOx by Ammonia.
Author :
Yi, Xing ; Li, Wang ; Bei, Cheng
Author_Institution :
Dept. of Environ. Eng., USTB, Beijing, China
Abstract :
The Fe/TiO2 catalyst is a new technology of NOx removal in the power plant, iron/steel manufacture. It has advantages of low cost and non toxicity as a comparison of regular V2O5-WO3/TiO2 catalyst. In this study, the Fe/TiO2 catalyst was prepared by impregnation method. The activities of Fe/TiO2 catalyst were examined for selective reduction of NOx by ammonia (NH3-SCR), as considering the impact of Fe loadings and precursors. Fe species and the distribution of Fe on TiO2 surface are investigated by UV/vis. Results indicate that by using Fe2(SO4)3 as precursor with 8% Fe loading, Fe/TiO2 catalyst could achieve nearly 100% NOx conversions within 300~400°C. Meanwhile, it also exhibited excellent durability and resistance to SO2. Generated on the TiO2 surface by precursor of Fe2(SO4)3, Fe ions and FexOy clusters could improve the reducibility of Fe/TiO2 catalyst and get better removal efficiency of NOx.
Keywords :
catalysts; iron compounds; nitrogen compounds; pollution control; power plants; reduction (chemical); steel industry; titanium compounds; FeTiO2; NO; ammonia; catalyst; impregnation method; iron-steel manufacture; nitrogen oxide removal; power plants; selective reduction; temperature 300 degC to 400 degC; Costs; Iron; Manufacturing; Ovens; Power engineering and energy; Power generation; Steel; Surface resistance; Temperature distribution; Thyristors;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5516485
