Highly Dispersed Mn–Ce Binary Metal Oxides Supported on Carbon Nanofibers for Hg0 Removal from Coal-Fired Flue Gas
Abstract
:1. Introduction
2. Material and Methods
2.1. Sorbent Preparation and Characterization
2.2. Experimental
3. Results and Discussion
3.1. Sorbent Characterization
3.2. Influence of Loading Value and Reaction Temperature on Hg0 Removal Performance
3.3. Hg0 Removal Mechanism Analysis
3.4. Influence of Individual Flue Gas Components on Hg0 Removal Performance
3.5. Possible Application Mode of the Sorbent
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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α | Specific Surface Area (m2/g) | Pore Volume (cm3/g) |
---|---|---|
0 | 96.532 | 0.461 |
6% | 97.020 | 0.350 |
9% | 93.853 | 0.299 |
12% | 88.948 | 0.307 |
15% | 87.158 | 0.293 |
18% | 86.729 | 0.286 |
α | Surface Atomic Concentration (%) | |||||
---|---|---|---|---|---|---|
C 1s | O 1s | Mn 2p | Mn4+/Mn3+ | Ce 3d | Ce3+/Ce4+ | |
0 | 96.76 | 3.24 | ||||
6% | 96.31 | 2.98 | 0.48 | 0.4277 | 0.23 | 0.5523 |
9% | 91.28 | 6.28 | 1.61 | 0.4212 | 0.83 | 0.3174 |
12% | 90.24 | 6.94 | 1.88 | 0.4171 | 0.94 | 0.2900 |
15% | 85.98 | 9.74 | 2.85 | 0.4140 | 1.43 | 0.2859 |
18% | 79.95 | 13.12 | 3.64 | 0.3218 | 1.85 | 0.2734 |
α | Capacity (μg·g−1) |
---|---|
12% | 74.8 ± 1.7 |
15% | 118.4 ± 2.3 |
18% | 54.1 ± 1.2 |
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Xia, Y.; Liao, Z.; Zheng, Y.; Zhou, Z. Highly Dispersed Mn–Ce Binary Metal Oxides Supported on Carbon Nanofibers for Hg0 Removal from Coal-Fired Flue Gas. Appl. Sci. 2018, 8, 2501. https://doi.org/10.3390/app8122501
Xia Y, Liao Z, Zheng Y, Zhou Z. Highly Dispersed Mn–Ce Binary Metal Oxides Supported on Carbon Nanofibers for Hg0 Removal from Coal-Fired Flue Gas. Applied Sciences. 2018; 8(12):2501. https://doi.org/10.3390/app8122501
Chicago/Turabian StyleXia, Yongjun, Zhiqiang Liao, Yan Zheng, and Zijian Zhou. 2018. "Highly Dispersed Mn–Ce Binary Metal Oxides Supported on Carbon Nanofibers for Hg0 Removal from Coal-Fired Flue Gas" Applied Sciences 8, no. 12: 2501. https://doi.org/10.3390/app8122501