TY - JOUR
T1 - Oxidative decomposition of chloropentafluoroethane (CFC-115) in the presence of methane over γ-alumina-supported metal or metal oxide catalysts
AU - Tashiro, Shizuka
AU - Nagata, Hideo
AU - Kishida, Masahiro
AU - Mizuno, Kouichi
AU - Kushiyama, Satoshi
AU - Wakabayashi, Katsuhiko
PY - 1999
Y1 - 1999
N2 - The oxidative decomposition of CFC-115 in the presence of methane was studied over γ-alumina-supported metal or metal oxide catalysts. γ-Alumina-supported zinc(II) oxide, vanadium oxide, Cr(III) and Pt catalysts showed high activity in the decomposition of CFC-115. γ-Alumina-supported chromium(III) oxide and Pt catalysts differed from the other catalyst in that the conversion of CFC-115 increased with increase in the partial pressure of methane. It is considered that water produced by the combustion of methane provided this catalytic reaction for the decomposition of CFC-115. To verify this theory, the amount of water produced by conversion of methane on γ-alumina-supported Pt catalyst was calculated. Then, corresponding amount of water was fed instead of methane and the decomposition of CFC-115 in both cases was compared. It was found that without methane the CFC-115 conversion decreased. It was concluded that methane combustion not only provides water to CFC but also provides heat to the catalysts to accelerate the decomposition of CFC.
AB - The oxidative decomposition of CFC-115 in the presence of methane was studied over γ-alumina-supported metal or metal oxide catalysts. γ-Alumina-supported zinc(II) oxide, vanadium oxide, Cr(III) and Pt catalysts showed high activity in the decomposition of CFC-115. γ-Alumina-supported chromium(III) oxide and Pt catalysts differed from the other catalyst in that the conversion of CFC-115 increased with increase in the partial pressure of methane. It is considered that water produced by the combustion of methane provided this catalytic reaction for the decomposition of CFC-115. To verify this theory, the amount of water produced by conversion of methane on γ-alumina-supported Pt catalyst was calculated. Then, corresponding amount of water was fed instead of methane and the decomposition of CFC-115 in both cases was compared. It was found that without methane the CFC-115 conversion decreased. It was concluded that methane combustion not only provides water to CFC but also provides heat to the catalysts to accelerate the decomposition of CFC.
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U2 - 10.1627/jpi1958.42.399
DO - 10.1627/jpi1958.42.399
M3 - Article
AN - SCOPUS:0342656952
SN - 1346-8804
VL - 42
SP - 399
EP - 402
JO - Sekiyu Gakkaishi (Journal of the Japan Petroleum Institute)
JF - Sekiyu Gakkaishi (Journal of the Japan Petroleum Institute)
IS - 6
ER -