Catalytic oxidative decomposition of chlorofluorocarbons (CFCs) in the presence of hydrocarbons

Hideo Nagata; Taijiro Takakura; Shizuka Tashiro; Masahiro Kishida; Koichi Mizuno; Ikuo Tamori; Katsuhiko Wakabayashi

doi:10.1016/0926-3373(94)00026-3

Catalytic oxidative decomposition of chlorofluorocarbons (CFCs) in the presence of hydrocarbons

Hideo Nagata, Taijiro Takakura, Shizuka Tashiro, Masahiro Kishida, Koichi Mizuno, Ikuo Tamori, Katsuhiko Wakabayashi

Molecular and Biochemical Systems Engineering

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

55 Citations (Scopus)

Abstract

The catalytic oxidative decomposition of CFCs containing two carbon atoms was investigated in the presence of hydrocarbons (C₁-C₄ alkanes) over silica and various acidic metal oxides. It was found that CFC-115 was the most difficult to be decomposed among CFC-113, CFC-114, and CFC-115, and that γ-alumina was the most active catalyst. The CFC-115 conversion over γ-alumina was lower in the presence of methane than in the presence of the other hydrocarbons. In addition, the activities of γ-alumina-supported metal and metal oxide catalysts were investigated for the oxidative decomposition of CFC-115 in the presence of n-butane. Tungsten (VI) oxide and vanadium (V) oxide catalysts exhibited the highest activity.

Original language	English
Pages (from-to)	23-31
Number of pages	9
Journal	Applied Catalysis B, Environmental
Volume	5
Issue number	1-2
DOIs	https://doi.org/10.1016/0926-3373(94)00026-3
Publication status	Published - Dec 31 1994

All Science Journal Classification (ASJC) codes

Catalysis
Environmental Science(all)
Process Chemistry and Technology

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Catalytic oxidative decomposition of chlorofluorocarbons (CFCs) in the presence of hydrocarbons. / Nagata, Hideo; Takakura, Taijiro; Tashiro, Shizuka; Kishida, Masahiro; Mizuno, Koichi; Tamori, Ikuo; Wakabayashi, Katsuhiko.

In: Applied Catalysis B, Environmental, Vol. 5, No. 1-2, 31.12.1994, p. 23-31.

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

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abstract = "The catalytic oxidative decomposition of CFCs containing two carbon atoms was investigated in the presence of hydrocarbons (C1-C4 alkanes) over silica and various acidic metal oxides. It was found that CFC-115 was the most difficult to be decomposed among CFC-113, CFC-114, and CFC-115, and that γ-alumina was the most active catalyst. The CFC-115 conversion over γ-alumina was lower in the presence of methane than in the presence of the other hydrocarbons. In addition, the activities of γ-alumina-supported metal and metal oxide catalysts were investigated for the oxidative decomposition of CFC-115 in the presence of n-butane. Tungsten (VI) oxide and vanadium (V) oxide catalysts exhibited the highest activity.",

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