Journal
RSC ADVANCES
Volume 4, Issue 11, Pages 5394-5398Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra46418k
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Funding
- National Natural Science Foundation of China [U1162119]
- Assembly Foundation of the Industry and Information Ministry of the People's Republic of China [543]
- Research and Innovation Plan for Postgraduates of Jiangsu Province [CXZZ13_0215]
- Research Fund for Scientific Research Project of Environmental Protection Department of Jiangsu Province [2013003, 201212]
- Industry-Academia Cooperation Innovation Fund Projects of Jiangsu Province [BY2012025]
- Scientific Research Project of Environmental Protection Department of Jiangsu Province [201112]
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Simultaneous flue gas desulfurization and denitrification are achieved with (OH)-O-center dot radicals generated from H2O2 catalyzed by Fe based transition metal (Fe, Fe-Al, Fe-Ti, Fe-Si) oxides in the duct, followed by purification with ammonia-based glass made washing tower. The main recovered products are the ammonia nitrate and sulfate, which are important fertilizers. In this oxidation-removal process, 100% SO2 and 74% NOX removal efficiencies are achieved at the simulated flue gas temperature of 120-180 degrees C under the applied conditions with a space velocity of 36 000 h(-1). The experimental results show that the enhancement of Lewis acid benefits the generation of O-2 without (OH)-O-center dot radical production. The increase of Fe3+ bonded with hydroxyl group and points of zero charge value are beneficial to produce (OH)-O-center dot radicals, thus improving the NOX removal efficiency.
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