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The effect of preparation conditions of Pt/Al2O3 on its catalytic performance for the H2-SCR in the presence of oxygen |
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| Authors: | Lei Yuan Xiang Zheng Kaijiao Duan Hao Hu Jinggang Wang Seong Ihl Woo Zhiming Liu |
| Affiliation: | 1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China 2. School of Environment & Natural Resources, Renmin University of China, Beijing, 100872, China 3. Department of Chemical and Biomolecular Engineering, Graduate School of EEWS(WCU), Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea |
| Abstract: | Selective catalytic reduction of NO x by H2 in the presence of oxygen has been investigated over Pt/ Al2O3 catalysts pre-treated under different conditions. Catalyst preparation conditions exert significant influence on the catalytic performance, and the catalyst pre-treated by H2 or H2 then followed by O2 is much more active than that pre-treated by air. The higher surface area and the presence of metallic Pt over Pt/Al2O3 pre-treated by H2 or pretreated by H2 then followed by O2 can contribute to the formation of NO2, which then promotes the reaction to proceed at low temperatures. |
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