With the more stringent requirements of atmospheric pollutant emission standards

medium and low temperature catalyst would have larger market and greater challenge. In order to further clarify the application characteristics of the low temperature denitration catalyst

the denitration activity of the industrialized honeycomb catalyst was systematically investigated under different temperatures

flue gas flow rate

catalyst length and water vapor content. The applicable temperature range and kinetic parameters of the catalyst under low temperature window were also determined. These results showed that theoretical denitrification rate of NH

3

/NO can be achieved above 160℃ by adjustments of gas velocity and length of honeycomb catalyst. Moreover

it was found that NO conversion gradually decreased with the increase of steam content

and the negative impact become more severely below 180℃ with less than 70% DeNO

x

efficiency at 160℃ and 35% steam content in flue gas. According to the relationship between denitrification rate and residence time (at 2－4 m/s gas velocity)

the reaction activation energy was calculated to be 22.7 kJ/mol

suggesting that the reaction is limited by the external diffusion. The industrial DeNO

x

demonstration of flue gas with 180000 m

3

/h over this catalyst exhibits more than 90% DeNO

x

efficiency at 180℃ and promising industrialization prospect.