Influence of Steam and Sulfide on High Temperature Selective Catalytic Reduction
Jiyuan Zhang, Linbo Wang, Chengqiang Zhang, Shuzhan Bai
FDMP-Fluid Dynamics & Materials Processing, Vol.16, No.3, pp. 615-621, 2020, DOI:10.32604/fdmp.2020.09654
(This article belongs to the Special Issue:
High-Speed and High-Temperature Flows)
Abstract The influences of steam and sulfide on the efficiency of NOx reduction
using ammonia (NH
3) over the nanometer-class V-W/Ti catalyst in conditions of
high temperature is experimentally investigated using a steady-flow reactor. The
results showed that selective catalytic reduction (SCR) is inhibited by H
2O at
low temperature, but higher NO conversion efficiency is achieved at high temperature since the reaction of NH3 oxidized by O
2 to NOx is inhibited by H
2O.
The activity of SCR is promoted by SO
2 in the temperature range of 200~500°
C, the NO conversion efficiency was improved to 98% from 94% by adding
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