Selective catalytic reduction of NO by ammonia with fly ash catalyst |
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Authors: | Xiaoping Xuan Changtao Yue Qiang Yao |
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Affiliation: | a Department of Thermal Engineering, Tsinghua University, Beijing 100084, People's Republic of China b Department of Chemical Engineering, Petroleum University of China, Beijing 102249, People's Republic of China |
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Abstract: | This paper investigates the selective catalytic reduction (SCR) of NO with NH3 using fly ash catalyst. The catalytically active elements investigated here included Fe, Cu, Ni and V. The results indicated that fly ash, after pre-treatment, can be reasonably used as the SCR catalyst support to remove NO from flue gas. Cu gave the highest catalytic activity and NO conversion, compared with Fe, Ni and V. In the pre-treatment process, the nitric acid treatment and drying temperatures for the fly ash particles had little effect on the NO conversion. However, the calcination temperature had an important effect on the catalyst preparation process. |
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Keywords: | Fly ash Selective catalytic reduction NO conversion |
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