Oxidation of 2,4-dichlorophenol in supercritical water

Kuen Song Lin; H. Paul Wang; M. C. Li

doi:10.1016/S0045-6535(97)10092-3

Oxidation of 2,4-dichlorophenol in supercritical water

Kuen Song Lin, H. Paul Wang, M. C. Li

Department of Environmental Engineering

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

42 Citations (Scopus)

Abstract

Disappearance kinetics of 2,4-dichlorophenol (DCP) oxidation in supercritical water was investigated. The experimental data reveal that the reaction is 0.97 order for DCP and 1.16 order for oxygen. The activation energy and the Arrhenius pre-exponential constant are 13.6 kcal/mol and 72.9 M^-1 ¹³s^-1, respectively. Several condensation by-products, such as trichlorophenols and dibenzo-p-dioxin, from supercritical water oxidation (SCWO) of DCP at 673 K were determined. We also found experimentally that the presence of sodium or iron cations in oxidation of DCP in supercritical water suppressed the formation rate of condensation by-products and enhanced the reaction conversion.

Original language	English
Pages (from-to)	2075-2083
Number of pages	9
Journal	Chemosphere
Volume	36
Issue number	9
DOIs	https://doi.org/10.1016/S0045-6535(97)10092-3
Publication status	Published - 1998 Apr

All Science Journal Classification (ASJC) codes

Environmental Engineering
General Chemistry
Environmental Chemistry
Pollution
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1016/S0045-6535(97)10092-3

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title = "Oxidation of 2,4-dichlorophenol in supercritical water",

abstract = "Disappearance kinetics of 2,4-dichlorophenol (DCP) oxidation in supercritical water was investigated. The experimental data reveal that the reaction is 0.97 order for DCP and 1.16 order for oxygen. The activation energy and the Arrhenius pre-exponential constant are 13.6 kcal/mol and 72.9 M-1 13s-1, respectively. Several condensation by-products, such as trichlorophenols and dibenzo-p-dioxin, from supercritical water oxidation (SCWO) of DCP at 673 K were determined. We also found experimentally that the presence of sodium or iron cations in oxidation of DCP in supercritical water suppressed the formation rate of condensation by-products and enhanced the reaction conversion.",

author = "Lin, {Kuen Song} and Wang, {H. Paul} and Li, {M. C.}",

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T1 - Oxidation of 2,4-dichlorophenol in supercritical water

AU - Lin, Kuen Song

AU - Wang, H. Paul

AU - Li, M. C.

N1 - Funding Information: The financial support of the National Science Council, Taiwan, R.O.C. (NSC-84-221 l-E-006-022, NSC-85

PY - 1998/4

Y1 - 1998/4

N2 - Disappearance kinetics of 2,4-dichlorophenol (DCP) oxidation in supercritical water was investigated. The experimental data reveal that the reaction is 0.97 order for DCP and 1.16 order for oxygen. The activation energy and the Arrhenius pre-exponential constant are 13.6 kcal/mol and 72.9 M-1 13s-1, respectively. Several condensation by-products, such as trichlorophenols and dibenzo-p-dioxin, from supercritical water oxidation (SCWO) of DCP at 673 K were determined. We also found experimentally that the presence of sodium or iron cations in oxidation of DCP in supercritical water suppressed the formation rate of condensation by-products and enhanced the reaction conversion.

AB - Disappearance kinetics of 2,4-dichlorophenol (DCP) oxidation in supercritical water was investigated. The experimental data reveal that the reaction is 0.97 order for DCP and 1.16 order for oxygen. The activation energy and the Arrhenius pre-exponential constant are 13.6 kcal/mol and 72.9 M-1 13s-1, respectively. Several condensation by-products, such as trichlorophenols and dibenzo-p-dioxin, from supercritical water oxidation (SCWO) of DCP at 673 K were determined. We also found experimentally that the presence of sodium or iron cations in oxidation of DCP in supercritical water suppressed the formation rate of condensation by-products and enhanced the reaction conversion.

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Oxidation of 2,4-dichlorophenol in supercritical water

Abstract

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