Elucidation of methyl tert-butyl ether degradation with Fe 2+/H2O2 by purge-and-trap gas chromatography-mass spectrometry

Xiang Rong Xu; Ji Dong Gu

doi:10.1016/j.microc.2003.12.005

Elucidation of methyl tert-butyl ether degradation with Fe ²⁺/H₂O₂ by purge-and-trap gas chromatography-mass spectrometry

Xiang Rong Xu, Ji Dong Gu^*

^*Corresponding author for this work

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

8 Scopus citations

Abstract

Degradation of methyl tert-butyl ether (MTBE) with Fe²⁺/H ₂O₂ was studied by purge-and-trap gas chromatography-mass spectrometry. MTBE was degraded 99% within 120 min under optimum conditions. MTBE was firstly degraded rapidly based on a Fe²⁺/H₂O ₂ reaction and then relatively slower based on a Fe ³⁺/H₂O₂ reaction. The dissolved oxygen decreased rapidly in the Fe²⁺/H₂O₂ reaction stage, but showed a slow increase in the Fe³⁺/H₂O ₂ reaction stage. tert-Butyl formate, tert-butyl alcohol, methyl acetate and acetone were identified as primary degradation products by mass spectrometry. A preliminary reaction mechanism involving two different pathways for the degradation of MTBE with Fe²⁺/H₂O₂ was proposed. This study suggests that degradation of MTBE can be achieved using the Fe²⁺/H₂O₂ process.

Original language	English
Pages (from-to)	71-77
Number of pages	7
Journal	Microchemical Journal
Volume	77
Issue number	1
DOIs	https://doi.org/10.1016/j.microc.2003.12.005
State	Published - May 2004
Externally published	Yes

Keywords

Degradation
Gas chromatography
Mass spectrometry
Mechanism
Methyl tert-butyl ether

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10.1016/j.microc.2003.12.005

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title = "Elucidation of methyl tert-butyl ether degradation with Fe 2+/H2O2 by purge-and-trap gas chromatography-mass spectrometry",

abstract = "Degradation of methyl tert-butyl ether (MTBE) with Fe2+/H 2O2 was studied by purge-and-trap gas chromatography-mass spectrometry. MTBE was degraded 99% within 120 min under optimum conditions. MTBE was firstly degraded rapidly based on a Fe2+/H2O 2 reaction and then relatively slower based on a Fe 3+/H2O2 reaction. The dissolved oxygen decreased rapidly in the Fe2+/H2O2 reaction stage, but showed a slow increase in the Fe3+/H2O 2 reaction stage. tert-Butyl formate, tert-butyl alcohol, methyl acetate and acetone were identified as primary degradation products by mass spectrometry. A preliminary reaction mechanism involving two different pathways for the degradation of MTBE with Fe2+/H2O2 was proposed. This study suggests that degradation of MTBE can be achieved using the Fe2+/H2O2 process.",

keywords = "Degradation, Gas chromatography, Mass spectrometry, Mechanism, Methyl tert-butyl ether",

author = "Xu, {Xiang Rong} and Gu, {Ji Dong}",

note = "Funding Information: Financial support was by the ITF grant (ITS/276/00) and industrial supports of Kou Hing Hong Scientific Supplies and Peako Engineering Co.",

year = "2004",

month = may,

doi = "10.1016/j.microc.2003.12.005",

language = "英语",

volume = "77",

pages = "71--77",

journal = "Microchemical Journal",

issn = "0026-265X",

publisher = "Elsevier Inc.",

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T1 - Elucidation of methyl tert-butyl ether degradation with Fe 2+/H2O2 by purge-and-trap gas chromatography-mass spectrometry

AU - Xu, Xiang Rong

AU - Gu, Ji Dong

N1 - Funding Information: Financial support was by the ITF grant (ITS/276/00) and industrial supports of Kou Hing Hong Scientific Supplies and Peako Engineering Co.

PY - 2004/5

Y1 - 2004/5

N2 - Degradation of methyl tert-butyl ether (MTBE) with Fe2+/H 2O2 was studied by purge-and-trap gas chromatography-mass spectrometry. MTBE was degraded 99% within 120 min under optimum conditions. MTBE was firstly degraded rapidly based on a Fe2+/H2O 2 reaction and then relatively slower based on a Fe 3+/H2O2 reaction. The dissolved oxygen decreased rapidly in the Fe2+/H2O2 reaction stage, but showed a slow increase in the Fe3+/H2O 2 reaction stage. tert-Butyl formate, tert-butyl alcohol, methyl acetate and acetone were identified as primary degradation products by mass spectrometry. A preliminary reaction mechanism involving two different pathways for the degradation of MTBE with Fe2+/H2O2 was proposed. This study suggests that degradation of MTBE can be achieved using the Fe2+/H2O2 process.

AB - Degradation of methyl tert-butyl ether (MTBE) with Fe2+/H 2O2 was studied by purge-and-trap gas chromatography-mass spectrometry. MTBE was degraded 99% within 120 min under optimum conditions. MTBE was firstly degraded rapidly based on a Fe2+/H2O 2 reaction and then relatively slower based on a Fe 3+/H2O2 reaction. The dissolved oxygen decreased rapidly in the Fe2+/H2O2 reaction stage, but showed a slow increase in the Fe3+/H2O 2 reaction stage. tert-Butyl formate, tert-butyl alcohol, methyl acetate and acetone were identified as primary degradation products by mass spectrometry. A preliminary reaction mechanism involving two different pathways for the degradation of MTBE with Fe2+/H2O2 was proposed. This study suggests that degradation of MTBE can be achieved using the Fe2+/H2O2 process.

KW - Degradation

KW - Gas chromatography

KW - Mass spectrometry

KW - Mechanism

KW - Methyl tert-butyl ether

UR - http://www.scopus.com/inward/record.url?scp=1842524237&partnerID=8YFLogxK

U2 - 10.1016/j.microc.2003.12.005

DO - 10.1016/j.microc.2003.12.005

M3 - 文章

AN - SCOPUS:1842524237

SN - 0026-265X

VL - 77

SP - 71

EP - 77

JO - Microchemical Journal

JF - Microchemical Journal

IS - 1

ER -

Elucidation of methyl tert-butyl ether degradation with Fe ²⁺/H₂O₂ by purge-and-trap gas chromatography-mass spectrometry

Abstract

Keywords

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