Investigation of Sulfated Iron-Based Catalysts with Different Sulfate Position for Selective Catalytic Reduction of NOx with NH3
Abstract
:1. Introduction
2. Results
2.1. SCR Catalytic Activity and Influence of SO2
2.2. XRD
2.3. BET and ICP
2.4. Raman
2.5. XPS
2.6. H2–TPR
2.7. NH3–TPD
2.8. In Situ DRIFTS Studying of the NH3-Adsorption on Different Catalysts
2.9. Transient Reaction Studies over Different Catalysts
2.9.1. Transient Reaction Studies over the Fe/(SZr) Catalyst
2.9.2. Transient Reaction Studies over the S (Fe/Zr) Catalyst
3. Discussion
4. Experimental
4.1. Catalyst Preparation
4.2. Catalytic Activity Measurement
4.3. Catalyst Characterization
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Sample | Integral Mass Concentration (wt.%) | Surface Area(m2/g) | ||
---|---|---|---|---|
Fe | S | Zr | ||
Fe/(SZr) | 2.0 | 1.4 | 64.5 | 1.1 |
S (Fe/Zr) | 2.1 | 1.3 | 63.4 | 1.2 |
Sample | Surface Atomic Concentration (%) | |||
---|---|---|---|---|
Fe | O | S | Zr | |
Fe/(SZr) | 1.7 | 77.1 | 0.3 | 0.3 |
S(Fe/Zr) | 3.2 | 60.9 | 4.8 | 15.9 |
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Fan, B.; Zhang, Z.; Liu, C.; Liu, Q. Investigation of Sulfated Iron-Based Catalysts with Different Sulfate Position for Selective Catalytic Reduction of NOx with NH3. Catalysts 2020, 10, 1035. https://doi.org/10.3390/catal10091035
Fan B, Zhang Z, Liu C, Liu Q. Investigation of Sulfated Iron-Based Catalysts with Different Sulfate Position for Selective Catalytic Reduction of NOx with NH3. Catalysts. 2020; 10(9):1035. https://doi.org/10.3390/catal10091035
Chicago/Turabian StyleFan, Baiyu, Ziyin Zhang, Caixia Liu, and Qingling Liu. 2020. "Investigation of Sulfated Iron-Based Catalysts with Different Sulfate Position for Selective Catalytic Reduction of NOx with NH3" Catalysts 10, no. 9: 1035. https://doi.org/10.3390/catal10091035