The catalytic incineration of trichloroethylene over a γ-alumina supported manganese oxide catalyst

Ting Ke Tseng, Hsin Chu, Han Hsuan Hsu

研究成果: Article

2 引文 斯高帕斯(Scopus)

摘要

TCE decomposition over a Mn2O3/γ-Al2O3 catalyst in a fixed bed reactor was conducted in this study. Preliminarily, three catalysts including Mn2O3/γ-Al2O3, NiO/γ-Al2O3, and Pt/γ-Al2O3 were used to incinerate TCE and the results show that the Mn2O3/γ-Al2O3 catalyst has the best performance. The effects of operating parameters, such as inlet temperature, space velocity, TCE inlet concentration, and oxygen concentration on the catalytic incineration of TCE over the Mn2O3/γ-Al2O3 catalyst were then performed. The results show that conversion of TCE increases as inlet temperature and oxygen concentration increase, and decreases with the increases of TCE concentration and space velocity. The activity of the catalyst decreases significantly while TCE incineration is operated under a low temperature, 365°C. However, the activity of the catalyst does not change much while the operating temperature is as high as 500°C. The catalysts were characterized by the surface and pore size analysis, XRD, XPS, EDS, and SEM before and after the tests. The results show that the catalytic crystal is Mn2O3, the catalytic deactivation is not due to carbonaceous material, and the chlorine element is adsorbed on the surface of catalysts.

原文English
頁(從 - 到)1159-1176
頁數18
期刊Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
38
發行號6
DOIs
出版狀態Published - 2003 六月 2

All Science Journal Classification (ASJC) codes

  • Environmental Engineering

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