Decomposition of 2-chlorophenol by supercritical water oxidation with zirconium corrosion

Jae Hyuk Lee, Sang Ha Son, Tran Tan Viet, Chang Ha Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The 2-chlorophenol (2-CP) was oxidized in a continuous anti-corrosive supercritical water system. The variation of decomposition efficiency by the corrosion of zirconium 702 was also studied at the variation of feed concentration and reaction time. According to AES depth profile, the oxygen penetration depth to zirconium was not proportional to the exposure time. It might stem from the formation of zirconium oxide layer on the surface delaying the corrosion. However, the increase in feed concentration accelerated the corrosion of zirconium. The corrosion of zirconium at low feed concentration led to the improvement of decomposition efficiency due to the catalytic effect of formed zirconium oxides, while that at high feed concentration deteriorated the decomposition efficiency owing to large consumption of oxidant in corrosion.

Original languageEnglish
Pages (from-to)398-402
Number of pages5
JournalKorean Journal of Chemical Engineering
Volume26
Issue number2
DOIs
Publication statusPublished - 2009 Mar 1

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Zirconium
Corrosion
Decomposition
Oxidation
Water
Zirconia
Caustics
Oxidants
2-chlorophenol
Oxygen
zirconium oxide

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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abstract = "The 2-chlorophenol (2-CP) was oxidized in a continuous anti-corrosive supercritical water system. The variation of decomposition efficiency by the corrosion of zirconium 702 was also studied at the variation of feed concentration and reaction time. According to AES depth profile, the oxygen penetration depth to zirconium was not proportional to the exposure time. It might stem from the formation of zirconium oxide layer on the surface delaying the corrosion. However, the increase in feed concentration accelerated the corrosion of zirconium. The corrosion of zirconium at low feed concentration led to the improvement of decomposition efficiency due to the catalytic effect of formed zirconium oxides, while that at high feed concentration deteriorated the decomposition efficiency owing to large consumption of oxidant in corrosion.",
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Decomposition of 2-chlorophenol by supercritical water oxidation with zirconium corrosion. / Lee, Jae Hyuk; Son, Sang Ha; Viet, Tran Tan; Lee, Chang Ha.

In: Korean Journal of Chemical Engineering, Vol. 26, No. 2, 01.03.2009, p. 398-402.

Research output: Contribution to journalArticle

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