Title: The DeNOx Characteristics of V/Ti Plate SCR Catalysts
Abstract: A series of V 2 O 5 /WO 3 /TiO 2 plate catalysts were prepared via the incipient wetness impregnation method, with the V 2 O 5 content of 0.68 wt%, 1.01 wt%, 1.19 wt%, 1.5 wt% and the WO 3 loading of 4.8 wt%, 6.2 wt%, 7.9 wt%, 9.2 wt%, respectively. Selective catalytic reduction of nitric oxide by ammonia (NH 3 -SCR) experiments were performed to investigate the effects of the several factors on the performance of the catalysts, including the V 2 O 5 , WO 3 and MoO 3 content in the catalysts and the O 2 concentration in the flue gas. The results indicated that as the rising of the V2O5 content, the SCR activity of the V 2 O 5 /WO 3 /TiO 2 catalysts was firstly increased and then slightly decreased, with the best activity obtained at the V 2 O 5 content of 1.19 wt%. As the increasing of the WO 3 content, the activity was firstly increased slightly and then almost kept constant. Furthermore, the loading of the MoO 3 on the V 2 O 5 /WO 3 /TiO 2 plate catalysts would bring negative effects to the catalytic activity. In addition, the capability of the catalysts would slightly increase as the O 2 concentration rising up to 7%, and then became stable at higher O 2 concentrations.
Publication Year: 2011
Publication Date: 2011-10-07
Language: en
Type: article
Indexed In: ['crossref']
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