The characterization of γ-alumina supported manganese oxide as an incineration catalyst for trichloroethylene

摘要

Trichloroethylene (TCE) decomposed over a MnO/γ-Al_2O_3 catalyst in a fixed bed reactor was conducted in this study. The MnO/γ-Al_2O_3 powders were prepared by the incipient wetness impregnation method with aqueous solution of manganese nitrate. The catalyst was characterized by TGA, X-ray diffraction, porosity analysis, scanning electron microscopy, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The products and reactants distribution from the oxidation of TCE over MnO/γ-Al_2O_3 were observed. A life test of the catalyst on TCE was performed to identify the chlorine poisoning effect. The catalysts were characterized by porosity analysis and elemental analysis before and after the tests.