標題: Effect of Fe2+ on catalytic oxidation in a fluidized bed reactor
作者: Chou, SS
Huang, CP
Huang, YH
環境工程研究所
Institute of Environmental Engineering
關鍵字: catalyst;crystallization;fluidized-bed;hydrogen peroxide;iron oxide;oxidation
公開日期: 1-Nov-1999
摘要: The aim of this study was to investigate the effect of Fe2+ on the catalytic oxidation in the fluidized-bed reactor (FBR) applying supported gamma-FeOOH as the carrier. Processes without Fe2+ addition and with Fe2+ addition (FBR-Fenton method) were performed on the oxidation of benzoic acid (BA) by H2O2. When Fe2+ was not added in the FBR, the high COD removal at low pH was caused by homogeneous catalysis of Fe2+ formed via reductive dissolution of gamma-FeOOH. In the FBR-Fenton process, both mineralization of organics and crystallization of Fe(III) were simultaneously well performed under adequate condition. The reaction mechanism, including the reductive dissolution and crystallization of gamma-FeOOH as well as the oxidation of BA, was proposed based on the experimental results. (C)1999 Elsevier Science Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/S0045-6535(99)00089-2
http://hdl.handle.net/11536/30989
ISSN: 0045-6535
DOI: 10.1016/S0045-6535(99)00089-2
期刊: CHEMOSPHERE
Volume: 39
Issue: 12
起始頁: 1997
結束頁: 2006
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