Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/45738
標題: Simultaneous treatment of organic compounds, CO, and NOx in the incineration flue gas by three-way catalyst
作者: Chen, J.C.
魏銘彥
Wey, M.Y.
Yeh, C.L.
Liang, Y.S.
關鍵字: sol-gel
palladium
rhodium
three-way catalysts (TWC)
BTEX
PAHs
CO
NOx
incineration
palladium catalyst
oxidation
emissions
vehicles
期刊/報告no:: Applied Catalysis B-Environmental, Volume 48, Issue 1, Page(s) 25-35.
摘要: The performance of a three-way catalyst (TWC) Pd/Rh/CeO2/Al2O3 which has the ability to simultaneously treat different pollutants in the incineration flue gas was studied. The catalyst support CeO2/Al2O3 was prepared by the modified oil-drop sol-gel process, and Pd/Rh was coated by the successive impregnation procedures. Catalytic experiments were carried out to study the destruction removal efficiency (DRE) of organic compounds benzene, toluene, ethylbenzene, xylene (BTEX), polycyclic aromatic hydrocarbons (PAHs), CO, and NOx at different operating conditions. The effects of heavy metals, acid gas, and water vapors on the characteristic and performance of TWC were also investigated. Experimental results showed that the DRE of BTEX, PAHs, CO, and NOx by one-stage TWC reactor was not good but was higher than 80% by two-stage TWC reactor. The best composition ratio of Pd/Rh catalyst in one-stage reactor was 1/0.15. The presence of heavy metals Pb, Cd and acid gas SOx, HCl in the flue gas poisoned the catalysts Pd and Rh in TWC. The effect of water vapor was slight and reversible. The structure characteristics of catalysts and the reactions of various pollutants with active catalyst were much related to the performance of TWC. (C) 2003 Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/11455/45738
ISSN: 0926-3373
文章連結: http://dx.doi.org/10.1016/j.apcatb.2003.09.004
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