Removal of NOx using novel Fe-Mn-Ti compound catalysts at low temperature

Author

Xu, Dong-yao ; Yang, Nan ; Dai, Xiang ; Zhou, Hao ; Chen, Xiao-chen ; Xu, Zhen-liang ; Yang, Qiao-wen

Author_Institution

Sch. of Chem. & Environ. Eng., China Univ. of Min. &Technol., Beijing, China

fYear

2011

fDate

15-17 July 2011

Firstpage

6720

Lastpage

6723

Abstract

The novel Fe-Mn-Ti compound catalysts were prepared by co-precipitation, based on the lower price and smaller surface area TiO₂. Then the cause of high catalytic activity which was represented by the compound catalyst was discussed. X-ray diffraction (XRD) was used to characterize the active phase and its results showed that a new Fe_0.33Mn_0.05Ti_2.52O₅ phase was generated for Fe-MnO_x-Ti. The Fe_0.33Mn_0.05Ti_2.52O₅ played a decisive role on the process of low-temperature SCR. However the effect of catalyst was not observed when the temperature was up to nearly 300° C. Based on the above statement, above 90% conversion of NO_x on the Fe(0.5)-MnO_x-Ti(400) (the molar ratio of n(Fe)/[n(Fe)+n (Mn)]=0.5 and calcined at 400ο C) was achieved among 180° C to 280° C.

Keywords

X-ray diffraction; calcination; catalysis; catalysts; iron compounds; manganese compounds; precipitation; titanium compounds; Fe_0.33Mn_0.05Ti_2.52O₅; NO_x removal process; X-ray diffraction; calcination process; coprecipitation process; high catalytic activity; low temperature condition; low-temperature SCR process; selective catalytic reduction; temperature 400 degC; Chemicals; Compounds; Iron; Manganese; Thyristors; X-ray diffraction; X-ray scattering; Fe-Mn-Ti compound catalyst; Low-temperature; Removal of NOx; Selective catalytic reduction (SCR);

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988588

Filename

5988588