Open Access
ARTICLE
Influence of Steam and Sulfide on High Temperature Selective Catalytic Reduction
Jiyuan Zhang1, Linbo Wang1, Chengqiang Zhang1, Shuzhan Bai2,*
1 R & D Center, Weichai Power Co. Ltd., Weifang, 261041, China
2 School of Energy and Power Engineering, Shandong University, Jinan, 250061, China
* Corresponding Author: Shuzhan Bai. Email:
(This article belongs to the Special Issue: High-Speed and High-Temperature Flows)
Fluid Dynamics & Materials Processing 2020, 16(3), 615-621. https://doi.org/10.32604/fdmp.2020.09654
Received 14 January 2020; Accepted 24 March 2020; Issue published 25 May 2020
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
SO
2. SCR would be improved at 350~500°C when H
2O and SO
2 exist at the same
time. Furthermore, the positive influence to the NOx conversion was proved in the
presence of H
2O and SO
2 as a result of the European Stationary Cycle test.
Keywords
Cite This Article
Zhang, J., Wang, L., Zhang, C., Bai, S. (2020). Influence of Steam and Sulfide on High Temperature Selective Catalytic Reduction.
FDMP-Fluid Dynamics & Materials Processing, 16(3), 615–621. https://doi.org/10.32604/fdmp.2020.09654