Effect of Fe2+ on catalytic oxidation in a fluidized bed reactor

Shanshan Chou; Ch-Hpin Huang; Yao Hui Huang

doi:10.1016/S0045-6535(99)00089-2

Effect of Fe²⁺ on catalytic oxidation in a fluidized bed reactor

Shanshan Chou, Ch-Hpin Huang^*, Yao Hui Huang

^*Corresponding author for this work

Institute of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

The aim of this study was to investigate the effect of Fe²⁺ on the catalytic oxidation in the fluidized-bed reactor (FBR) applying supported γ-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 γ-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 γ-FeOOH as well as the oxidation of BA, was proposed based on the experimental results.

Original language	English
Pages (from-to)	1997-2006
Number of pages	10
Journal	Chemosphere
Volume	39
Issue number	12
DOIs	https://doi.org/10.1016/S0045-6535(99)00089-2
State	Published - Nov 1999

Keywords

Catalyst
Crystallization
Fluidized-bed
Hydrogen peroxide
Iron oxide
Oxidation

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title = "Effect of Fe2+ on catalytic oxidation in a fluidized bed reactor",

abstract = "The aim of this study was to investigate the effect of Fe2+ on the catalytic oxidation in the fluidized-bed reactor (FBR) applying supported γ-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 γ-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 γ-FeOOH as well as the oxidation of BA, was proposed based on the experimental results.",

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T1 - Effect of Fe2+ on catalytic oxidation in a fluidized bed reactor

AU - Chou, Shanshan

AU - Huang, Ch-Hpin

AU - Huang, Yao Hui

PY - 1999/11

Y1 - 1999/11

N2 - The aim of this study was to investigate the effect of Fe2+ on the catalytic oxidation in the fluidized-bed reactor (FBR) applying supported γ-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 γ-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 γ-FeOOH as well as the oxidation of BA, was proposed based on the experimental results.

AB - The aim of this study was to investigate the effect of Fe2+ on the catalytic oxidation in the fluidized-bed reactor (FBR) applying supported γ-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 γ-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 γ-FeOOH as well as the oxidation of BA, was proposed based on the experimental results.

KW - Catalyst

KW - Crystallization

KW - Fluidized-bed

KW - Hydrogen peroxide

KW - Iron oxide

KW - Oxidation

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DO - 10.1016/S0045-6535(99)00089-2

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SN - 0045-6535

VL - 39

SP - 1997

EP - 2006

JO - Chemosphere

JF - Chemosphere

IS - 12

ER -

Effect of Fe²⁺ on catalytic oxidation in a fluidized bed reactor

Abstract

Keywords

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