期刊
ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷 42, 期 17, 页码 6677-6682出版社
AMER CHEMICAL SOC
DOI: 10.1021/es8001844
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资金
- U.S. DOE NETL University Coal Research Program
- North Dakota Lignite Council
- Montana-Dakota Utilities
- Basin Electric Power Cooperative
- Great River Energy
- Saskatchewan Power Corporation
- Minnkota Power Cooperative, Inc
- UND Energy and Environmental Research Center
- Office Of The Director
- EPSCoR [0814442] Funding Source: National Science Foundation
The feasibility of oxidizing elemental mercury in coal combustion flue gas using catalytic material impregnated onto fabric filters was explored. TiO2, Au/TiO2, and Pd/A(l)2O(3) were studied based on promising results in previous research. Several fabric coating methods were investigated to determine the best way to load a filter. A spray coat method was found to have the highest initial loading and had the lowest losses after simulated pulse-jet cleaning. The oxidation performance of the catalyst-coated filters was tested using a simulated flue gas in a bench-scale reactor under conditions similar to those found in a baghouse. Au/TiO2 and Pd/Al2O3 were effective, yielding mercury oxidation ranges of 40-60% and 50-80%, respectively. A 19 kW research combustor equipped with a baghouse was used to fire a range of coals and further test the performance of Pd/Al2O3. Results obtained warrant further development of this technique as a means of mercury pollution control.
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